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Preface

iii

7SS60 Manual
E50417-G1176-C132-A2

Typographical and
symbol
conventions

The following text formats are used when literal information from the device or to the
device appear in the text flow:

3DUDPHWHUQDPHV

, i.e. designators of configuration or function parameters, which

may appear word-for-word in the display of the device or on the screen of a personal
computer (with DIGSI 3), are marked in bold letters of a monospace type style.

3DUDPHWHURSWLRQV

, i.e. possible settings of text parameters, which may appear

word-for-word in the display of the device or on the screen of a personal computer
(with DIGSI 3), are written in italic style, additionally. This applies also for options in
menus.

“

$QQXQFLDWLRQV

”, i.e. designators for information, which may be output by the relay

or required from other devices or from the switch gear, are marked in a monospace
type style in quotes.

Deviations may be permitted in drawings when the type of designator can be obviously
derived from the illustration.

The other symbols used are mainly taken from the standards IEC 60617–12 and
IEC 60 617–13, or derived from them.

and the possible states

2Q

and

2II

U

L1–L2

(DUWKIDXOW

Internal logical input signal of the device

(DUWKIDXOW

Internal logical output signal of the device

Incoming internal signal of an analog magnitude

!5HOHDVH

External binary input signal with function number FNo

Dev. TRIP

External binary output signal with function number FNo

2Q
2II

)81&7,21

Parameter address

Parameter name

Parameter states

Example of a parameter switch

)81&7,21

with the address

(binary input, input annunciation)

(device annunciation)

FNo

FNo

Disclaimer of liability
Although we have carefully checked the contents of this
publication for conformity with the hardware and software
described, we cannot guarantee complete conformity
since errors cannot be excluded.
The information provided in this manual is checked at
regular intervals and any corrections which might be-
come necessary are included in the next releases. Any
suggestions for improvement are welcome.

The contents of this manual is subject to change without
prior notice. Release 3.10.01

Copyright
Copyright



Siemens AG 2001 All Rights Reserved

This document shall not be transmitted or reproduced, nor shall its contents
be exploited or disclosed to third persons without prior written consent from
Siemens. Infringements shall entitle to damage claims. All rights reserved,
in particular in case of a patent grant or utility model registration.

Registered Trademarks

SIPROTEC, SINAUT, SICAM und DIGSI are registered trademarks of
SIEMENS AG. All other product and brand names in this manual may be
trademarks, the use of which by third persons for their purposes may in-
fringe the rights of their respective owners.

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Содержание SIPROTEC 7SS60

Страница 1: ...E50417 G1176 C132 A2 SIEMENS SIPROTEC 7SS60 V3 1 Centralized Numerical Busbar Protection ...

Страница 2: ......

Страница 3: ... Numerical Busbar Protection 7SS60 3 1 Manual QWURGXFWLRQ 1 HVLJQ DQG RQQHFWLRQ 6 VWHP 2 HWWLQJ 6WDUWHG 3 RQILJXUDWLRQ 4 XQFWLRQV 5 RQWURO LQ 2SHUDWLRQ 6 QVWDOODWLRQ DQG RPPLVVLRQLQJ 7 0DLQWHQDQFH DQG 7URXEOHVKRRWLQJ 8 7HFKQLFDO DWD 9 SSHQGL A ...

Страница 4: ...Siemens Aktiengesellschaft Document No E50417 G1176 C132 A2 ...

Страница 5: ...irmware version 3 1 Additional support For any questions concerning your SIPROTEC system please contact your Siemens representative Training courses Individual course offers may be found in our Training Catalog or questions can be di rected to our training centre Indication of Conformity This product complies with the directive of the Council of the European Communities on the approximation of the...

Страница 6: ...ipment and the hazards involved In addition he or she has the following qualifications Is trained and authorized to energize de energize clear ground and tag circuits and equipment in accordance with established safety practices Is trained in the proper care and use of protective equipment in accordance with es tablished safety practices Is trained in rendering first aid Warning Hazardous voltages...

Страница 7: ...nal signal of an analog magnitude 5HOHDVH External binary input signal with function number FNo Dev TRIP External binary output signal with function number FNo 2Q 2II 81 7 21 Parameter address Parameter name Parameter states Example of a parameter switch 81 7 21 with the address binary input input annunciation device annunciation FNo FNo Disclaimer of liability Although we have carefully checked t...

Страница 8: ...Preface iv 7SS60 Manual E50417 G1176 C132 A2 ...

Страница 9: ...on from the user interface of the 7SS601 measuring system 3 5 3 3 2 Operation from a PC 3 6 3 3 3 Operating prerequisites 3 7 3 4 Storage 3 8 4 Configuration 4 1 4 1 Designing a system configuration 4 2 4 2 Configuration of the measuring system 4 4 4 2 1 Entering a password 4 4 4 2 2 Changing the operating language 4 5 4 2 2 1 Function description 4 5 4 2 2 2 Hints on setting 4 5 4 2 2 3 Overview ...

Страница 10: ...ints on setting 5 15 5 3 3 Overview of parameters 5 15 5 3 4 Annunciations 5 15 5 4 Busbar protection 5 16 5 4 1 Function description 5 16 5 4 2 Hints on setting 5 18 5 4 3 Overview of parameters 5 19 5 4 4 Annunciations 5 19 5 5 Differential current supervision Block 13 5 20 5 5 1 Function description 5 20 5 5 2 Hints on setting 5 20 5 5 3 Overview of parameters 5 21 5 5 4 Annunciations 5 21 5 6 ...

Страница 11: ... 8 2 1 7SS601 measuring system 8 3 8 2 2 Peripheral modules 8 3 8 3 Troubleshooting 8 4 8 3 1 7SS601 measuring system 8 4 8 3 2 Peripheral modules 8 5 8 4 Repair Return 8 6 9 Technical Data 9 1 9 1 General data 9 2 9 1 1 7SS601 measuring system 9 2 9 1 2 Peripheral modules 9 5 9 1 2 1 7TM700 restraint command output module 9 5 9 1 2 2 7TR710 isolator replica module preferential treatment module 9 ...

Страница 12: ...d accessories A 2 A 2 Block diagram Measuring system A 5 A 3 Block diagrams Peripheral modules A 6 A 4 Jumper settings for the measuring system A 9 A 5 Jumper settings for the peripheral modules A 11 A 6 Operating tree A 14 A 7 Overview of parameters A 19 A 8 List of information A 20 ...

Страница 13: ...G1176 C132 A2 Introduction 1 The SIPROTEC 7SS60 device is introduced in this chapter An overview of the appli cation and characteristics of the 7SS60 is given 1 1 Overall function 1 2 1 2 Application scope 1 6 1 3 Features 1 8 ...

Страница 14: ...s each selective section uses one 7SS601 measuring system variant with summation current transformer or three measuring systems phase selective measurement The correct allocation of the feeder currents to the appropriate 7SS601 measuring system is ensured by the pe ripheral module 7TR710 preferential treatment isolator replica Pick up characteristic The characteristic can be set in the parameters ...

Страница 15: ...llocated to it Command relay 2 is available for having command functions marshalled to it All command relays have a NO contact It has also 3 signal relays with changeover contacts one of which is used for output of the device blocked annunciation The relay functionality NC or NO can be selected by a jumper setting The module is equipped with a serial RS485 interface The con verter for the auxiliar...

Страница 16: ... be involved in the switching action there may be an undefined allocation of the differential and restraint currents to the measuring sys tems during a few milliseconds caused by different relay switching times The blocking pulse required for system stability is generated automatically on the module within the corresponding time Also an auxiliary relay is included with two changeover contacts Comm...

Страница 17: ...ted among the measuring systems by relay modules that provide for connection of nearly all relay contacts to connecting points This provides for a high degree of flexibility of the modules One configuration task is to design the wiring be tween the modules the modules and the 7SS601 measuring systems and to the pri mary equipment in accordance with the desired function Mounting The 7SS60 busbar pr...

Страница 18: ...alizing isolators longitudinal couplers and transversal couplers These types of systems are shown in the following figures Single phase measurement can be achieved by using external summation current transformers The use of matching transformers allows phase selective measure ment For extra security an additional measuring system check zone can be implemented The busbar protection system is design...

Страница 19: ...tion 1 7 7SS60 Manual E50417 G1176 C132 A2 Figure 1 4 Single busbar with sectionalizing isolator Figure 1 5 Double busbar with sectionalizing isolator and two transversal couplers BB1A BB1B BB1A BB2A BB1B BB2B ...

Страница 20: ...d protection functions from the sampling and digitizing of the measured values to the TRIP decisions for the circuit breakers High degree of security against overfunction and detection of external faults even with unfavourable transformer configuration Differential current supervision of transformer circuits with blocking option for TRIP command Blocking of TRIP command possible by fast binary inp...

Страница 21: ...n and the connection system of the 7SS60 You will find information on the available housing variants and on the types of connections used This chapter also specifies recommended and reliable wiring data as well as suitable accessories and tools 2 1 7SS601 measuring system 2 2 2 2 Peripheral modules 2 4 ...

Страница 22: ...ng plates of the module Connection to earth is made before the plugs make contact An earthing area marked with an earth symbol has been provided at the housing rear At this area an earthing strip must be connected with two earthing screws in order to ensure solid low impedance earthing Figure 2 1 Front view left and rear view right of the 7SS601 measuring system The terminal allocation of the meas...

Страница 23: ...G 12 to 10 in parallel double leaf spring crimp contact for conductor cross sections of 2 5 to 4 0 mm AWG 13 to 11 max tightening torque 3 5 Nm Control connections terminals 7 to 31 Screw terminals ring type cable lug for bolts of 4 mm max outside diameter 9 mm Type e g PDIG of Messrs Tyco Electronics AMP for conductor cross sections of 1 0 to 2 6 mm AWG 17 to 13 in parallel double leaf spring cri...

Страница 24: ... the maximum degree of expansion If the housing contains less modules the cutouts that are not required are closed by metal blanking plates An earthing area marked with an earth symbol has been provided at the housing rear At this area an earthing strip must be connected with two earthing screws in order to ensure solid low impedance earthing In addition the housing bears a rating sticker with bas...

Страница 25: ...esive la bels provided The marking system for this is shown in Figure 2 2 Example The self adhesive label with the pin names 11 12 20 and the labels with the let ters A B C D X1 X2 is to be stuck onto the top plug on connector at the left hand side of the mounting slot A Make a cross in the field that corresponds to the pin connector In the following example see Figure 2 3 fields A and X1 have a c...

Страница 26: ...pheral modules Figure 2 3 Example showing the labelling of the plug on connectors Mounting slots peripheral modules Figure 2 4 Mounting slots for the peripheral modules in the 7XP204 housing front view The module guiding grooves are marked Self adhesive Labels Slot A Slot B Slot C Slot D ...

Страница 27: ...For an electrical check you can navigate in the user interface without any measured values You can also connect the measuring system 7SS601 to a PC and operate it from the computer using the DIGSI communication software In the last section you will find hints on what to observe for a long term storage of the system 3 1 Unpacking and repacking of devices and modules 3 2 3 2 Incoming inspection of d...

Страница 28: ... to ensure that they have not been mechanically damaged Please observe the instruction leaflet and any other documentation that may be part of the delivery The shipping packaging can be reused in the same manner for further shipment If oth er packaging is used shock requirements under IEC 60255 21 1 Class 2 and IEC 60255 21 2 Class 1 must be met The devices and modules should be in the final opera...

Страница 29: ... voltage of the same level as the auxiliary supply voltage is required for their activation The jumper settings are listed in Appendix A 4 The delivery status of the peripheral modules is shown in Appendix A 5 3 2 2 Electrical check The operating conditions must accord with VDE 0100 and VDE 0105 Part 1 The unit should be in the final operating area for a minimum of two hours before the power sourc...

Страница 30: ...green Service Betrieb LED on the front plate must light after at most 0 5 s and the red Blocked Störung LED must go off after at most 10 s q After at most 15 s the start up messages indicating the ordering code and the firm ware version must disappear from the display Instead the measured values of the differential current Id and the restraint current IR should appear Depending on the preset marsh...

Страница 31: ... 2 lines of 8 characters each is provided for display Parameters are displayed with a 2 digit number in the upper display line on the left This number represents the address block The keypad comprises 9 keys including a YES and a NO key and control keys that are used to navigate through the hierarchically structured operating menu tree The keys have the following meanings Keys for changing numeric...

Страница 32: ...nt operating man uals The DIGSI communication software is suited for processing protection data Y J YES key Operator confirms the displayed question N NO key Operator negates the displayed question This key is also used to reset memorized LED indications and fault alarms Forward scrolling the display shows the next operating position of the same operation level Backward scrolling the display shows...

Страница 33: ...tem such as setting of operational parameters thresholds functions marshalling of command relays alarms binary inputs LED indications system design parameters for operating language interface and device configura tion starting of test procedures The password is not required for readout of annunciations operational data fault data and setting values The preparatory instructions in subsection 4 2 1 ...

Страница 34: ...ly ageing of the electrolytic capacitors in the power supplies The relative humidity must not cause condensation or ice Furthermore it is recommended to connect the devices and modules to auxiliary volt age for about 1 or 2 days every two years so that the electrolytic capacitors in the power supplies are formatted The same procedure should be followed before install ing these devices In case of e...

Страница 35: ... This chapter tells you from the example of a single busbar station with sectionalizing isolator which components you need to perform what tasks In the second part you will learn how to proceed for the configuration of the 7SS601 measuring system in particular how to enter the password change the operating language detect output annunciations and commands at the inputs outputs set the serial link ...

Страница 36: ...tem configuration The following example of a single busbar station with longitudinal sectionalizers shows you the functions that are assumed by the individual modules Figure 4 1 Example of a single busbar with longitudinal sectionalizers and summation current transformers ...

Страница 37: ...71 preferential treatment isolator replica module One of the two existing preferential treatment modules is used When the longitudinal sectionalizers is closed no selective protection of the two busbars is possible Therefore one of the two measuring systems is preferred in this condition in the above example the left one The detection of such a condition and the necessary switchover is performed b...

Страница 38: ...ndicates that the password is required The password itself con sists of the key sequence The entered characters do not appear in the display instead only a symbol ap pears After confirmation of the correct input with E the display responds with 2 B Press the key E again If the password is not correct the display shows 521 Pressing the keys or allows another attempt at password entry By pressing th...

Страница 39: ... or key Each language is spelled in the corresponding national language The required language is selected with the enter key E 4 2 2 3 Overview of parameters 4 2 3 Marshalling of binary inputs binary outputs and LED indicators 4 2 3 1 Introduction Block 60 When the device is delivered from the factory the LED indicators on the front cover the binary inputs and the output relays have already inform...

Страница 40: ...al annunciations can trigger one physical signal relay Example for binary inputs A similar situation applies to binary inputs In this case external information e g 3 EOR is connected to the unit via a physical input module and should initiate a logical function namely blocking The corresponding question to the operator is then which signal from a physical input relay should initiate which reaction...

Страница 41: ...pears press the enter key E After this further functions can be assigned to the same physical input or output module with further index num bers by using key Each selection must be confirmed by pressing the E key If a selection place is to be assigned to no function selection is made with the function QRW DOO not allocated You can leave the selection level by pressing the key The display shows aga...

Страница 42: ...l block appears in the display Key leads to operation level 3 with address block 0 56 1 13 The selection procedure is carried out as described in section 4 2 3 1 A choice can be made for each individual input function as to whether the desired func tion should become operative in the normally open mode or in the normally closed mode which means normally open mode The input acts as an NO contact i ...

Страница 43: ... 1 Table 4 4 shows a complete list of all signal functions with their associated function number FNo The assignment of the signal relays as delivered from the factory is shown in Appendix A 3 Table 4 5 shows all signal relays as preset from the factory Following password input all marshallable functions can be scrolled through on the display by repeated use of the key Backscrolling in the offered ...

Страница 44: ...le 4 4 Marshallable output functions FNo Text on the LC display Logical functions 1 5 7701 7721 7900 7901 7910 7911 7914 7920 7921 not all LED r LO Res Lockout BP blo BP bPu BP blk BP act BP Trip IdS act IdS flt Not allocated Reset LED indicators Lock Out reset Lock Out state Block busbar protection Busbar protection blocking pulse Busbar protection blocked Busbar protection active Busbar protecti...

Страница 45: ...me as those listed in Table 4 4 Table 4 6 shows all LED indicators as they are preset from the factory The selected function must be confirmed by the enter key E Following password input all marshallable output functions can be scrolled through on the display by repeated use of the key Backscrolling in the offered suggestions is possible with the key When the required function appears press the en...

Страница 46: ...ng protection function has been deactivated or configured to alarm output only The assignment of the command relays as delivered from the factory is shown in the block diagram in Appendix A 2 Table 4 7 shows all binary inputs as preset from the factory Following password input all marshallable functions can be scrolled through on the display by repeated use of the key Backscrolling in the offered ...

Страница 47: ...ddress In case more than one substation is addressed an identification number for each sub station can be assigned in parameter 68 67 Setting values between 1 and 254 are possible Data format In the parameter 3 6 the data format of the serial interface can be matched to the application The recommended data format for the Siemens protection data processing program is 6 9 The other setting option is...

Страница 48: ...ttings Default setting Explanation 7201 72DEVICE minimum setting 1 maximum setting 254 1 ID number of the device within the substation 7202 72FEEDER minimum setting 1 maximum setting 254 1 Number of feeder within the substation feeder address 7203 72SUBSTA minimum setting 1 maximum setting 254 1 ID number of substation if more than one substation can be addressed 7211 72 PC INT DIGSI V3 ASCII DIGS...

Страница 49: ...ince the start up of the processor system connection of the supply voltage No password is required to change the date and time Day month and year can be altered using the keys and Press the key to move between the day month and year Each time a value is changed the enter key E must be pressed before the next number can be changed Proceed in analog manner to change the time 4 2 5 2 Hints on setting...

Страница 50: ...Configuration 4 16 7SS60 Manual E50417 G1176 C132 A2 ...

Страница 51: ...function It also gives information and where required formulae for determination of the setting values 5 1 Measurement method 5 2 5 2 Formation of measuring currents from the transformer currents 5 7 5 3 Power system and switchgear data Block 01 5 14 5 4 Busbar protection 5 16 5 5 Differential current supervision Block 13 5 20 5 6 Fault recording Block 74 5 22 ...

Страница 52: ...can be formed at any time even over a whole cycle and if formed as such using instantaneous current values full use of above law can be made The above considerations apply strictly to the primary side conditions in a high voltage switching station Protection systems however cannot carry out direct measurements of currents in high voltage systems Protection equipment measurement systems performing ...

Страница 53: ...tems where the sum of the currents is zero on the primary side for busbars and similar objects this difficulty is countered by employment of the so called stabilization restraining devices If the short circuit does not occur at the voltage peak of the cycle a dc component is initially superimposed on the short circuit current which decays with a time constant τ L R of the impedance from source to ...

Страница 54: ...s the connection circuit of the protection The supervision is set to pick up at much lower currents than the protection function which is designed for short circuit currents so that it can respond to such a low current in the summation path even at normal load currents The supervision function detects faults and interruptions in the current transformer circuits If now in this error condition a sho...

Страница 55: ...mission behaviour flow individually through the primary windings of the measuring transducers MS and summated through the primary winding of the measuring transducer MD On the secondary side each transducer MS of the restraint module feeds a measuring rectifier GS Regardless of the direction of the individual currents in the measuring transducers the current direction at the output of the measurin...

Страница 56: ...G1176 C132 A2 An even higher degree of safety can be achieved by using separate transformer cores for the check zone To avoid over restraint address N IDF in the check zone measuring sys tem has to be a lower level see Subsection 5 4 2 ...

Страница 57: ...rent of 100 mA With the current transformer carrying rated current at the primary side the current for this feeder that is fed into the protection for comparison will be 100 mA This applies if 3 phase currents are summated to a single phase alternating current for a common measuring circuit and if each phase has its own measuring circuit The latter is preferentially used for protection equipment f...

Страница 58: ...phase currents and the third winding the ratio 3 winding is connected to the neutral conductor This is the most frequently used circuit It is used in power systems where system faults involving earth currents are likely to induce relatively small fault currents One of their characteristics is that the fault detection thresholds for 2 phase short circuits have a ratio of 1 2 With any other winding ...

Страница 59: ...ed outside the protected zone between the power source and the busbar equipped with a differential protection If the starpoints of the transformers that are fed by the protected busbar have a solid or low resistant earthing but all supply transformers have an isolated starpoint an earth fault in phase L2 within the protected zone with the connection circuit shown in Figure 5 6 would lead to a lowe...

Страница 60: ...former the current distribution is independent of the affected phase Figure 5 8 Current distribution during a 1 pole earth fault in a power system with earthing only on the consumer side Figure 5 9 Summation transformer currents in a 1 pole earth fault in a power system with earthing only on the consumer side connection as per 5 8 For the three possible cases the following conditions apply If an e...

Страница 61: ...lts Figure 5 10 Connection circuit of the summation current transformer for normal earth short circuit sensitivity The effective number of turns in the winding and fault detection ranges are listed in the following table Figure 5 11 Summation transformer currents in a 1 pole earth fault in a power system with earthing only on the consumer side connection as per 5 10 Short circuit Affected phases E...

Страница 62: ...A but seven input windings for connection to the main current transformers The numbers of turns in these windings are such that they allow to compensate by appropriate connection circuits any transformation ratio differences in the main transformers In this way for even transformation ratios additional auxiliary CTs can be dispensed with which makes the input connection for the protection less com...

Страница 63: ...r connection to the main current transformers The numbers of turns in these windings are such that they allow to compensate by appropriate protective circuits any transformation ratio differences in the main transformers In this way additional auxiliary current transformers can be dispensed with which makes the input connection for the protection less complex To ensure the required degree of prote...

Страница 64: ...occur if these contacts were opened before the auxiliary contacts of the circuit breaker s have interrupted the flow of current through the trip coil With the parameter 7 75 3 the minimum duration of the TRIP command can be extended long enough to ensure that the flow of current through the trip coil of the circuit breaker is reliably interrupted Lockout function The parameter 2XW causes the TRIP ...

Страница 65: ...e reset with the N key or with a binary input 5 3 3 Overview of parameters 5 3 4 Annunciations Note The parameter 5 4 can only be called up in versions for 50 Hz or 60 Hz In systems with a rated frequency of 16 7 Hz the parameter 5 4 is not displayed at all DIGSI addr Parameter Possible settings Default setting Explanation 1101 01 FREQ 50 Hz 60 Hz 50 Hz Rated frequency of power system 1134 01 T TR...

Страница 66: ... the presence of a fault in its associated protection zone Figure 5 17 shows the trip characteristic of the protection The characteristic is divided into a horizontal portion and a portion with a steadily rising slope Only value pairs of a differential and a restraint current that are both above the characteristic constitute busbar faults that lead to a TRIP command The level of the horizontal por...

Страница 67: ...mmand Diff current supervision Open fault buffer Create fault record tp Diff current supervision release logic S R Q 0 A A Blocking via binary input LockOut Logic LockOut 7721 BP Trip 7914 BP blk 7910 1801 13Id sup 7701 LO Res Key N LED Reset Key N LED Reset 7901 BP bPu 7900 BP blo 1 1 Blocking pulse BP act 7911 1501 10 BPStat 1505 10 Id 1506 10 K fac 1 1802 13 Id sup 1511 10 T Trip T 1134 1135 L ...

Страница 68: ...is time step causes the delayed initialization of the TRIP command if a tripping time other than zero is specified The TRIP command is only executed if during the entire time step the tripping is issued by the protection algorithm The time step will be reset prematurely if the protection algorithm assumes the tripping conditions to be no longer fulfilled The delay time of the TRIP command can be s...

Страница 69: ...no 1 to 2 50 Ino 1 1 Ino normalized rated current Ino 100mA with a symmetrical rated current flowing on the primary side 1 00 Ino 1 Threshold for differential current 1506 10K fac 0 25 to 0 80 0 60 Sensitivity to internal faults 1511 10 TrpDly 0 00 to 10 00 0 00 Time delay of trip FNo Text on LC display Logical functions 7721 LockOut Lock Out state 7911 BP act Busbar protection active 7914 BP Trip...

Страница 70: ... block the protection if set before Figure 5 19 Release logic of the differential current supervision 5 5 2 Hints on setting Differential current supervision The parameter G VXS is used to activate and deactivate the differential current supervision function The following setting options are offered for the differen tial current supervision blocking of the busbar protection till the release EO UHO...

Страница 71: ...Id Sup bl relBP bl ackBP ALRMonly OFF bl relBP Differential current supervision function 1802 13Id thr 0 10 Ino 1 to 1 00 Ino 1 1 Ino normalized rated current Ino 100 mA with a symmetrical rated current flowing on the primary side 0 15 Ino 1 Threshold of differential current supervision FNo Text on LC display Logical functions 7921 IdS Flt IDIFF supervision fault detected ...

Страница 72: ...RWHFWLRQ 7ULS and RFN 2XW VWDWH Part of the fault recording memory in the 7SS601 is buffered against voltage failures The buffered portion has a capacity of 5 s It contains always the most recent fault events A fault event starts with tripping by a protection function and ends with the reset of the last tripping by a protection function Fault records in the 7SS601 always cover this span of time pl...

Страница 73: ... and time and to check the status of the binary inputs Detailed knowledge of the functioning of the system is not required A prerequisite for control is however that the system settings have been made as described in Chapter 4 and especially that the input and output functions have been marshalled 6 1 Read out of information 6 2 6 2 Read out of the date and time 6 5 6 3 Testing the status of the b...

Страница 74: ...relays through the device terminals Display on a PC monitor through the serial link using the DIGSI communication software Display on the LC display on the front panel LEDs The green LED labelled Service Betrieb is continuously on during normal operation The red LED labelled Blocked Störung shows that the processor system has detect ed an internal malfunction If this LED lights during operation th...

Страница 75: ...protection function and ends with the reset of the last fault detection Measured values 0 6 9 8 6 Display of measured values differential and restraint current Pressing the key brings you to the next operation level where you can call up suc cessively all annunciation blocks using the and keys Operational annunciations Block 81 Operational annunciations are information that the device generates du...

Страница 76: ...ological order of their detection with a relative time referred to the moment at which the fault started Pressing the key brings you from block 8 7 1181 to the fault annunciations where you can call up successively all fault annunciations using the and keys To move from the selected fault annunciation to the fault annunciation buffer press the key Just like the operational annunciations the fault ...

Страница 77: ...f the device Pressing the key three times brings you to the block 7 21 81 7 21 Move to the block 7 0 6 77 1 in the next operation level by pressing the key Press the key again to shift to the level where the date and time can be read out The blocks for setting the date and time are called up by scrolling with This is de scribed in subsection 4 2 5 ...

Страница 78: ...ey E you are asked whether you want to interrogate the status of the binary inputs If you press the N key the action is aborted and you can move to the next test item with If you actuate Y J the status of the 3 binary inputs BI is shown as a matrix which has the following meaning BI 1 is activated energized BI 2 is activated energized BI 3 is activated energized The BI is not activated Testing the...

Страница 79: ...her you want to interrogate the status of the LEDs If you press the N key the action is aborted and you can move to the next test item with If you actuate Y J the status of the 4 LEDs is shown as a matrix which has the follow ing meaning LED 1 is activated LED 2 is activated LED 3 is activated LED 4 is activated The LED is not activated LED STATUS 2 4 In this example LED 2 and LED 4 are activated ...

Страница 80: ...Control in Operation 6 8 7SS60 Manual E50417 G1176 C132 A2 ...

Страница 81: ...ommissioning protective and control systems and are familiar with applicable safety rules safety regulations and the operation of the power system Some modifications of the hardware to the station data may be necessary For primary tests the switch gear must be isolated to perform switching operations 7 1 Installation and connection 7 2 7 2 Commissioning 7 5 ...

Страница 82: ...tion conditions it must be taken into account that the models for rated auxiliary voltage 60 110 125 Vdc and 220 250 Vdc differ from each other by dif ferent plug jumpers The assignment of the jumpers to the rated voltage levels and their location on the p c b is shown in Figure A 5 The model for 220 250 Vdc is suitable for 115 Vac too When the device is delivered all the jumpers are correctly loc...

Страница 83: ...ing front making ac cessible 4 elongated holes q Insert the unit into the panel cutout or cubicle mounting frame and fix with four screws a dimension drawing is shown in Figure 9 2 q Unscrew the screws next to the fixing screws to remove the front cover q A solid low resistant and low inductive operating earth has to be connected to the housing s rear wall using at least one of the two M4 screws E...

Страница 84: ...f the housing The slots are numbered and color coded refer to Figure 2 4 q The peripheral modules are identified by a labelling strip on which the current con figuration is stated The configuration information should contain the designation of the peripheral modules in accordance with their mounting position and their voltage ranges Each peripheral module housing has a rating sticker that should b...

Страница 85: ...cted solidly to the protective earth conductor before any other electrical connection is made Hazardous voltages can be present on all circuits and components connected to the supply voltage or to the measuring and test quantities Hazardous voltages can be present in the device even after disconnection of the supply voltage storage capacitors After switching of the auxiliary voltage 10 s should be...

Страница 86: ...here is no checkback signal because of wire break or auxiliary power outage the isolator is assumed to be CLOSED so that instabilities of the measuring system when a cur rent flows are efficiently counteracted Isolator replica q Check the correct allocation of the feeder currents to the measuring system isolator replica using load currents or secondary test equipment Current transformer circuits I...

Страница 87: ...d by disconnecting their outgoing leads so that the current L1 flows only through the primary winding of L1 and the winding N in the zero current path of the summation current transformers In this circuit the rated current on the primary side of the main current transformer cor responds to a current of approx 300 mA on the secondary side of the summation cur rent transformer If the N winding were ...

Страница 88: ...nd input transformers to match it to the downstream measurement setup The directional check of the feeder currents should be performed with operational load currents from the station with the tripping lines of the busbar protection interrupted or the TRIP command blocked Reliable measurements are performed with 20 of the normalized rated current in each feeder This can usually be achieved with loa...

Страница 89: ...tinuous reliability of the SIPROTEC 7SS60 protection sys tem It tells you which components should be checked and or replaced on a routine basis and what to do in case of malfunctions of the device The chapter is intended both for personnel in charge of operation and for protection engineers 8 1 General 8 2 8 2 Routine checks 8 3 8 3 Troubleshooting 8 4 8 4 Repair Return 8 6 ...

Страница 90: ... and restart If such a fault is not eliminated by restarting further restarts are initiated If the fault is still present after three restart attempts the protective system will switch itself out of service and indica tion this condition by the red LED Blocked Störung on the front panel drop off of the Device ready NC relay signals the equipment fault The reactions to faults can be called up in ch...

Страница 91: ...rrent must be equal to the summated amounts of the cur rents of all feeders that are connected to the measuring system q Read out the operational annunciations refer to Section 6 1 Check that they do not contain any entries on faults in the system in the measured values or any other kind of implausible information 8 2 2 Peripheral modules Trip circuits q Check the trip circuits for controlling the...

Страница 92: ...2 5 Replacing the mini fuse q Select a replacement fuse 5 x 20 mm refer to Section A 4 Ensure that the rated value time lag slow and code letters are correct q Prepare the area of work provide a conductive surface for the module q Slip away the covering caps at the top and bottom of the housing making accessi ble one screw each in the top and bottom center Unscrew these two screws q Pull out the m...

Страница 93: ...8 5 7SS60 Manual E50417 G1176 C132 A2 8 3 2 Peripheral modules A general detailed testing specification cannot be given Please observe the plans for the switchgear and the block diagrams of the peripheral modules given in Appendix A 3 ...

Страница 94: ...ing of electrostatic endangered devices Before you extract the peripheral modules from the housing pull off the plug on con nectors and unscrew the securing screw on the rear Modules fitted in the unit are not endangered Note Before returning the device all configuration and setting parameters should be read out and stored If the location of jumpers on the p c b s has been changed the changed sett...

Страница 95: ...of its functions including limits that may on no account be exceeded The electrical and functional data for the maximum scope of functions are followed by the mechanical data and the dimension drawings 9 1 General data 9 2 9 2 Electrical tests 9 10 9 3 Mechanical tests 9 12 9 4 Climatic stress test 9 13 9 5 Service conditions 9 14 9 6 Dimensions 9 15 ...

Страница 96: ...full offset Measuring input IR Rated current 1 9 mA Dynamic overload capability 250 x IN for 10 ms pulse current Thermal overload capability rms 100 x IN for 1 s where external summation or matching 30 x IN for 10 s current transformers are used their limit 4 x IN continuous data must be observed Isolating voltage 2 5 kV rms Measuring dynamics 0 to 200 x IN Auxiliary voltage via integrated dc dc c...

Страница 97: ...er of relays 1 2 NO contacts 1 1 NO contact Switching capacity MAKE 1000 W VA BREAK 30 W VA Switching voltage 250 V ac dc permissible current continuous 5 A 0 5 s 30 A Signal contacts Number of relays 3 2 can be marshalled Contacts 2 changeover contacts and 1 NO contact can be changed to NC by jumper Switching capacity MAKE 1000 W VA BREAK 30 W VA Switching voltage 250 V ac dc permissible current ...

Страница 98: ...in steps of 0 01s Time delay of trip 0 00 to 10 00 s in steps of 0 01s Differential current supervision Pick up threshold 0 10 to 1 00 Ino 1 each additional intermediate relay increases the command duration by 7 ms 2 each additional intermediate relay increases the reset time by 8 ms Lockout function Maintain TRIP command until reset Reset by binary input and or local operator panel Additional fun...

Страница 99: ...erved Auxiliary voltage Rated auxiliary voltage UH 48 60 Vdc 38 to 72 Vdc permitted voltage range 110 125 Vdc 88 to 150 Vdc 220 250 Vdc 176 to 300 Vdc settable see Figure A 5 As delivered 220 250 Vdc Power consumption Rated auxiliary voltage max power consumption continuous 48 V 0 7 W 60 V 1 0 W 110 V 1 9 W 125 V 2 4 W 220 V 3 1 W 250 V 3 9 W Command contacts Number of relays 5 Contacts per relay ...

Страница 100: ...uxiliary voltage Rated auxiliary voltage UH 48 60 Vdc 38 to 72 Vdc permissible voltage range 110 125 Vdc 88 to 150 Vdc 220 250 Vdc 176 to 300 Vdc depending on the ordering number see Chapter A 1 Power consumption Relay Rated aux voltage max power consumption continuous K1 K2 K3 K4 48 V 1 5 W 60 V 1 9 W 110 V 1 8 W 125 V 2 1 W 220 V 1 8 W 250 V 2 1 W K5 48 V 0 4 W 60 V 0 5 W 110 V 0 5 W 125 V 0 6 W...

Страница 101: ...1 W 250 V 3 9 W Command contacts Number of relays 8 Contacts per relay 2 NO contacts for short term operation 10 s 1 Pickup time approx 7 ms Switching capacity MAKE 1000 W VA BREAK 30 W VA Switching voltage 250 V ac dc permissible current continuous 5 A 0 5 s 30 A Weight approx 0 5 kg 1 limited by the continuous power dissipation of the device 9 1 3 Peripheral module housing Design Housing 7XP204 ...

Страница 102: ... current transformers with a rated current IN of 1 A Rated frequency fN 45 60 Hz Winding Number of turns A B 1 B C 2 D E 4 E F 8 G H 16 H J 32 Y Z 500 Max current continuous A 6 8 6 8 6 8 6 8 6 8 6 8 0 85 Max voltage V 0 4 0 8 1 6 3 2 6 4 12 8 200 4AM5120 2DA00 0AN2 for connection to current transformers with a rated current IN of 5 A Rated frequency fN 45 60 Hz Winding Number of turns A B 1 B C 2...

Страница 103: ...ers with a rated current IN of 1 A Rated frequency fN 45 60 Hz Winding Number of turns A B 3 C D 6 E F 9 G H 18 J K 24 L M 36 N O 90 Y Z 500 Max current continuous A 4 4 4 4 4 4 2 0 85 Max voltage V 1 2 2 4 3 6 7 2 9 6 14 4 36 200 4AM5120 4DA00 0AN2 for connection to current transformers with a rated current IN of 5 A Rated frequency fN 45 60 Hz Winding Number of turns A B 1 C D 2 E F 3 G H 4 J K ...

Страница 104: ...tage test routine test auxiliary voltage input and RS485 interface binary inputs and measuring input IR Impulse voltage test type test all circuits class III 2 5 kV rms 50 Hz 3 5 kVdc 5 kV peak 1 2 50 µs 0 5 J 3 positive and 3 negative pulses in intervals of 5 s EMC tests against radio disturbances type tests IEC 60255 6 IEC 60255 22 international product standards EN 50082 2 technical generic sta...

Страница 105: ...atory Surge Withstand Capability ANSI IEEE C37 90 1 Fast Transient Surge Withstand Capability ANSI IEEE C37 90 1 Radiated Electromagnetic Interference ANSI IEEE C37 90 2 Damped oscillations IEC 61000 4 12 IEC 60694 2 5 to 3 kV peak 1 to 1 5 MHz damped wave 50 pulses per s duration 2 s Ri 150 to 200 Ω 4 to 5 kV 10 150 ns 50 pulses per s both polarities duration 2 s Ri 80 Ω 35 V m 25 to 1000 MHz 2 5...

Страница 106: ...thogonal axes sinusoidal 1 to 8 Hz 3 5 mm amplitude 8 to 35 Hz 1 g acceleration 1 to 8 Hz 1 5 mm amplitude 8 to 35 Hz 0 5 g acceleration frequency sweep 1 octave min 1 cycle in 3 orthogonal axes Vibration and shock during transport IEC 60255 21 IEC 60068 2 Vibration IEC 60255 21 1 class II IEC 60068 2 6 Shock IEC 60255 21 2 class 1 IEC 60068 2 27 Continuous shock IEC 60255 21 2 class 1 IEC 60068 2...

Страница 107: ...ransport Storage and transport with standards works packing 20 to 45 C 25 to 55 C 25 to 70 C Humidity in service mean value per year 75 relative humidity on 56 days per year 95 relative humidity condensation not permissible We recommend to install the devices so that they are not subject to direct sunlight and strong fluctuations in temperature which could lead to moisture condensation ...

Страница 108: ...ith suitable spike quenching elements All external connection leads in substations from 100 kV upwards should be screened with a screen capable of carrying power currents and earthed at both sides No special measures are normally necessary for substations of lower voltages It is not permissible to withdraw or insert individual modules under voltage In the withdrawn condition some components are el...

Страница 109: ... Dimensions Measuring system Figure 9 1 Housing 7XP20 of the 7SS601 measuring system for panel or cubicle flush mounting 75 70 71 2 255 8 0 3 245 1 6 Side view Rear view Panel cutout 244 266 29 5 172 37 Mounting plate 56 5 0 3 7 3 5 4 5 or M4 Dimensions in mm ...

Страница 110: ...9 2 Housing 7XP204 of the peripheral modules for panel or cubicle flush mounting Rear view 221 2 5 or M4 6 Panel cutout 255 8 0 3 245 1 180 0 5 206 5 0 3 13 2 7 3 5 4 Side view 244 266 2 29 5 172 Mounting plate 220 225 Dimensions in mm 57 dependent on min bending radius of the used wires ...

Страница 111: ...132 A2 Matching transformers Summation current matching transformers Figure 9 3 Matching transformers and summation current matching transformers 4AM5120 1DA00 0AN2 4AM5120 2DA00 0AN2 Dimensions in mm 5 8 102 5 4AM5120 3DA00 0AN2 4AM5120 4DA00 0AN2 ...

Страница 112: ...Technical Data 9 18 7SS60 Manual E50417 G1176 C132 A2 ...

Страница 113: ...ular listings of all settings and system data for the full scope of device functions A 1 Ordering data and accessories A 2 A 2 Block diagram Measuring system A 5 A 3 Block diagrams Peripheral modules A 6 A 4 Jumper settings for the measuring system A 10 A 5 Jumper settings for the peripheral modules A 12 A 6 Operating tree A 16 A 7 Overview of parameters A 21 A 8 List of information A 23 ...

Страница 114: ...60 Vdc to 125 Vdc 4 220 Vdc to 250 Vdc 115 Vac 5 Mechanical design In 7XP20 1 6 19 housing for panel or cubi cle flush mounting E Measuring system Standard measuring system 0 Order No Restraint command output module 7TM700 0 0 A A 0 0 0 A A 0 Rated auxiliary voltage 48 Vdc 60 Vdc 110 Vdc 125 Vdc 220 Vdc 250 Vdc settable Order No Preferential treatment Isolator replica module 7TR710 0 A A 0 0 0 A A...

Страница 115: ...l E50417 G1176 C132 A2 Order No Command output module 7TS720 0 0 A A 0 0 0 A A 0 Rated auxiliary voltage 48 Vdc 60 Vdc 110 Vdc 125 Vdc 220 Vdc 250 Vdc settable Order No Housing for peripheral modules 7XP204 1 2 M A 0 0 0 A A 0 ...

Страница 116: ... software DIGSI 4 incl DIGSI 3 English German French 7XS5400 0AA00 Graphic evaluation software SIGRA 4 English German French 7XS5410 0AA00 Remote control software DIGSI REMOTE 4 English German French 7XS5440 0AA00 Summation current matching transformer 1 A 50 60 Hz 4AM5120 3DA00 0AN2 5 A 50 60 Hz 4AM5120 4DA00 0AN2 Matching transformer 1 A 50 60 Hz 4AM5120 1DA00 0AN2 5 A 50 60 Hz 4AM5120 2DA00 0AN...

Страница 117: ... Manual E50417 G1176 C132 A2 A 2 Block diagram Measuring system 7SS601 Figure A 1 Block diagram of the 7SS601 measuring system default setting of binary inputs command and signal relays as delivered 1 1 1 1 1 1 1 1 1 1 1 ...

Страница 118: ...0 Manual E50417 G1176 C132 A2 A 3 Block diagrams Peripheral modules Restraint command output module 7TM700 Attention All relay coils depend on polarity Figure A 2 Block diagram for 7TM700 restraint command output module ...

Страница 119: ...X1 22 X1 21 K5 K1 X2 1 X2 2 L internal X2 22 X2 21 L internal X2 8 X2 16 X2 12 L internal X8 X7 X6 X2 5 X2 4 X15 X5 X17 X3 X16 X4 X1 19 X1 20 L internal X1 5 X1 4 X1 6 X1 13 X1 12 X1 14 X1 9 X1 8 X1 10 L internal X14 X13 X12 X1 17 X1 16 X18 X11 X20 X9 X19 X10 L internal X2 9 X2 7 X2 15 X2 17 X2 13 X2 11 Start blocking pulse 1 K2 K4 X2 25 X2 26 K3 X1 39 X1 40 L internal L internal X1 36 X1 35 Start...

Страница 120: ...Appendix A 8 7SS60 Manual E50417 G1176 C132 A2 Command output module 7TS720 Attention All relay coils depend on polarity Figure A 4 Block diagram of 7TS720 command output module ...

Страница 121: ...417 G1176 C132 A2 A 4 Jumper settings for the measuring system 7SS601 Figure A 5 Location of the jumpers in the 7SS601 measuring system delivery status X12 1 X30 4 3 2 1 X28 3 1 2 2 3 X11 1 2 3 X6 L H X8 L H X7 L H X20 3 2 1 X21 F1 ...

Страница 122: ...1 2 X30 empty 1 2 3 4 2 3 Binary input Jumper Pick up threshold 17 V 73 V 1 X6 L H 2 X7 L H 3 X8 L H Jumper RS485 interface without terminator with terminator X20 1 2 2 3 X21 1 2 2 3 Jumper Signal relay 1 NO contact NC contact X28 1 2 2 3 Rated voltage Fuse F1 acc to IEC 60127 24 48 Vdc T1 6H250V 60 110 125 Vdc T1H250V 220 250 Vdc T1H250V 115 Vac T1H250V ...

Страница 123: ... restraint command output module delivery status 220 250V 110 125V 48 60V X21 4 3 2 1 220 250V 110 125V 48 60V X22 4 3 2 1 220 250V 110 125V 48 60V X23 4 3 2 1 220 250V 110 125V 48 60V X24 4 3 2 1 220 250V 110 125V 48 60V X25 4 3 2 1 X1 X2 Jumper Rated auxiliary voltage 24 48 Vdc 110 125 Vdc 220 250 Vdc X21 1 2 2 3 3 4 X22 1 2 2 3 3 4 X23 1 2 2 3 3 4 X24 1 2 2 3 3 4 X25 1 2 2 3 3 4 ...

Страница 124: ...e 7TR710 Figure A 7 Location of the jumpers on the 7TR710 preferential treatment isolator replica module delivery status Refer to Figure A 3 for the function of the jumpers The jumper assignment depends on the configuration X10 X9 X11 X19 X18 X20 X13 X14 X12 X4 X5 X3 X16 X17 X15 X7 X6 X8 X1 X2 ...

Страница 125: ...2 4 3 2 1 220 250V 110 125V 48 60V X23 4 3 2 1 220 250V 110 125V 48 60V X24 4 3 2 1 220 250V 110 125V 48 60V X25 4 3 2 1 220 250V 110 125V 48 60V X26 4 3 2 1 220 250V 110 125V 48 60V X27 4 3 2 1 220 250V 110 125V 48 60V X28 4 3 2 1 X1 X2 Jumper Rated auxiliary voltage 48 60 Vdc 110 125 Vdc 220 250 Vdc X21 1 2 2 3 3 4 X22 1 2 2 3 3 4 X23 1 2 2 3 3 4 X24 1 2 2 3 3 4 X25 1 2 2 3 3 4 X26 1 2 2 3 3 4 X...

Страница 126: ...nd setting parameters of the 7SS601 busbar protection system It shows the operating sequenc es that must be followed to make a specific selection Table A 2 Operating tree of the 7SS601 1st level 2nd level 3rd level 4th level 5th level 66 9 66 3 5 0 32 5 6 67 7 5 4 7 753 2XW 86 5 3527 7 36WDW G IDF 7US O 683 59 G VXS G WKU 0 56 0 56 1 13 0 56 ...

Страница 127: ...Appendix A 15 7SS60 Manual E50417 G1176 C132 A2 0 56 0 56 0 56 6 5 0 56 6 5 6 6 0 56 6 5 6 6 0 56 0 56 0 56 0 56 Table A 2 Operating tree of the 7SS601 1st level 2nd level 3rd level 4th level 5th level ...

Страница 128: ...SS60 Manual E50417 G1176 C132 A2 0 56 0 56 0 5 0 56 0 5 0 0 17 23 1 8 17 5 9 5 68 67 3 17 36 3 8 3 5 7 8 7 5 25 5 7 0 7 35 7 326 Table A 2 Operating tree of the 7SS601 1st level 2nd level 3rd level 4th level 5th level ...

Страница 129: ...SS60 Manual E50417 G1176 C132 A2 1181 23 5 1181 8 7 1181 OVW 8 7 QG 8 7 UG 8 7 WK 8 7 WK 8 7 WK 8 7 WK 8 7 WK 8 7 0 6 9 8 6 G V Table A 2 Operating tree of the 7SS601 1st level 2nd level 3rd level 4th level 5th level ...

Страница 130: ... A 18 7SS60 Manual E50417 G1176 C132 A2 7 21 81 7 21 7 0 6 77 1 7 0 6 77 1 7 7 0 7 67 6 2 67 7 67 7 5 67 7 67 786 021 725 Table A 2 Operating tree of the 7SS601 1st level 2nd level 3rd level 4th level 5th level ...

Страница 131: ...differential current supervision 7101 71LANGUA ENGLISH DEUTSCH ENGLISH Selection of the operating language 7201 72DEVICE minimum setting 1 maximum setting 254 1 ID number of the device within the substation 7202 72FEEDER minimum setting 1 maximum setting 254 1 Number of feeder within the substation feeder address 7203 72SUBSTA minimum setting 1 maximum setting 254 1 ID number of substation if more...

Страница 132: ...ED res LED reset C 110 ANNlost Annunciations lost buffer overflow C 111 PCannLT Annunciations for PC lost C 113 TAGlost Fault tag lost X 115 ANNovfl Fault annunciation buffer overflow C 203 REC del Fault recording data deleted C 301 Sys Flt Fault in the power system C C 302 FAULT Fault event with consecutive number C C 608 ID Operational meas differential current in M 609 IR Operational meas restr...

Страница 133: ...mat 4 13 Date and time Setting 4 15 Date time Readout 6 5 Design 1 3 Device address 4 13 Differential current Pick up value 5 18 Differential current supervision 5 20 Pick up threshold 5 20 Dimensions Matching transformers 9 17 Measuring system 9 15 Peripheral modules housing 9 16 Summation current transformers 9 17 E Earth current sensitivity Increased 5 8 Normal 5 11 F Fault events 6 4 Fault rec...

Страница 134: ...measured values 6 2 Overview of parameters A 19 P Peripheral modules Allocation of connectors to plugs 2 5 Connection system 2 5 Housing 2 4 Identification 2 5 Slots 2 6 Pick up characteristic 1 2 Q Qualified personnel ii R Rated frequency 5 14 Rated system frequency 5 15 Repair 8 6 Replacing the mini fuse 8 4 Restraint 1 2 Restraint factor 5 18 Return of device to factory 8 6 Routine checks 8 3 S...

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