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ENERAL

The portable, high accuracy test sets of the STS family allow performing all tests foreseen by international Standards on
CTs, measurement VTs, Power Transformers, and to measure the Tan(δ), dissipation factor and capacitance of any
device. With the option STLG + STSG it is also possible to execute the Earth resistance and Step and Touch voltage
measurements.

The following table lists the models of the STS Family:

Model

Description

STS 5000

It is the most performing test set of the STS family of devices. It allows executing all
listed tests

STS 4000

It is the same as STS 5000, unless the high AC and DC current generators. High AC
current tests can be performed using the BUX 3000 option; micro-Ohm metering is
not available

STS 3000 light

It allows performing Tan(δ) tests with the option TD 5000

Table 1 - STS Family models

The following table summarizes the differences among the models:

Model

High current, AC

& DC

High voltage

Low Ac-DC

outputs

Optional Tan(δ)

tests

TD 5000

Optional High AC

current

BUX 3000

STS 5000

X

X

X

X

X

STS 4000

X

X

X

X

STS 3000

light

X

Table 2 - Differences among the STS Family models

Keyboard, dedicated keys, control knob and display can control all test sets of the family locally. Test results and settings
can be saved in a PC by the software suite TDMS, which comes with the device. The optional PADS program allows also
controlling the device from the PC.

The following table lists the tests performable by the Current Transformers:

No.

Test

STS 5000

STS 4000

STS 3000 light

1

Ratio Polarity and Burden

X

+BUX

+Manual Measure

+BUX

+Manual Measure

2

Burden Secondary Side

X

X

3

Excitation Curve

X

X

4

Winding or Burden Resistance

X

X

5

Voltage Withstand

X

X

6

Polarity Check

X

7

Ratio Polarity Voltage Mode

X

X

8

Rogowski (Ratio)

X

+BUX

+Manual Measure

+BUX

+Manual Measure

9

Low Power (Ratio)

X

+BUX

+Manual Measure

+BUX

+Manual Measure

10

Tangent δ

TD 5000

TD 5000

TD 5000

11

Ratio IEC61850-9-2LE

X

Table 3 - Current Transformer tests

BUX is the BUX 3000, BUX 2000 option, for high current injection tests. The Ratio test for Not-Conventional transformer
with the option IEC61850-9-2LE is available only in remote control mode, using the PADS software.

Shop for Power Metering products online at:

1.877.766.5412

www.

PowerMeterStore

.ca

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Содержание STS 3000 light

Страница 1: ...SPECIFICATIONS DOCUMENT No SIE10175 Rev 14 Date STS TD 5000 FAMILY for the test of CT VT and PT Shop for Power Metering products online at 1 877 766 5412 www PowerMeterStore ca ...

Страница 2: ...ODE PII43175 51 4 5 STCS AUTOMATIC CONNECTION WINDINGS MODULE CODE PII12175 52 4 6 STCS POWER GENERATOR BOOSTER 20 A DC CODE PII32175 53 4 7 STDE RESIDUAL MAGNETIZATION REMOVAL MODULE CODE PII27175 54 4 8 STSA SURGE ARRESTER CODE PII46175 55 4 9 BUX 3000 BUX 2000 CURRENT BOOSTER CODES PII50175 PII56175 55 4 10 CURRENT CLAMP CODE PII16102 57 4 11 PLCK POLARITY CHECKER CODE PII41175 58 4 12 STLG CUR...

Страница 3: ...GITAL THERMO HYGROMETER CODE PII44175 73 4 23 RCTD REACTOR FOR MOTORS AND GENERATORS MEASURES CODE PII47175 74 5 PROTECTIONS 76 Shop for Power Metering products online at 1 877 766 5412 www PowerMeterStore ca ...

Страница 4: ...s document without notice and shall not be responsible for any damages including but not limited to consequential damages caused by reliance on the material presented including but not limited to typographical errors Copies reprints or other reproductions of the content or of parts of this publication shall only be permitted with ISA prior written consent All trademarks are the property of their r...

Страница 5: ... X X X X X STS 4000 X X X X STS 3000 light X Table 2 Differences among the STS Family models Keyboard dedicated keys control knob and display can control all test sets of the family locally Test results and settings can be saved in a PC by the software suite TDMS which comes with the device The optional PADS program allows also controlling the device from the PC The following table lists the tests...

Страница 6: ...00 light 1 Ratio X X 2 Winding Resistance X X 3 Winding Resistance Auto X X 4 Voltage Withstand X X 5 Short Circuit Impedance X X 6 No Load Current X X 7 Tangent δ TD 5000 TD 5000 TD 5000 8 Demagnetizer X X Table 5 Power Transformers tests The following table lists the tests performable by the Circuit Breakers No Test STS 5000 STS 4000 STS 3000 light 1 Resistance μΩ X 2 Tangent δ TD 5000 TD 5000 T...

Страница 7: ...01 CENELEC HD 63761 STS Family has the facility to test not conventional CT VT Merging Unit MU by the IEC 61850 9 2 SV protocol STS Family generates current or voltage and injects these quantities into primary side of the CT or VT under test STS Family then reads the data from the network using its Ethernet port Sample Values in order to perform a variety of different tests as CT ratio and polarit...

Страница 8: ... VT polarity test 12 STLG PII70175 It is a high power transformer for the current injection for the Line Impedance and Step and Touch tests 13 Power factor correction module PII85175 It is a module to increase the current in the grounding and step and touch tests 14 STLG large stations PII88175 It is a high power transformer for current injection into transmission lines for large stations 15 STSG ...

Страница 9: ...the PADS program allows performing the same tests as in the local mode with the same control windows It allows also downloading displaying and analyzing test results obtained in local mode PADS operates with all WINDOWS versions The ease of operation has been the first goal of STS this is why the LCD is graphic and so large With it the dialogue in menu mode is made easy Besides all STS outputs rel...

Страница 10: ...llowing image exhibits the STS 5000 as an example of the model of the family with the protection cover lifted Figure 1 STS 5000 Shop for Power Metering products online at 1 877 766 5412 www PowerMeterStore ca ...

Страница 11: ...To input a value select the field and then Edit the desired value via the keypad Increment or decrement the value pressing the above pushbuttons Rotate the knob clockwise increment or anti clockwise decrement Press the keyboard up key to increment and the keyboard down key to decrement The amount of the increment or decrement is ten units for the plus and minus keys one unit for the knob and one t...

Страница 12: ...e protected Fuse rating FF 10 A 250 V The LED turns ON when it is active 18 Digital input sockets for voltage clean contact or with voltage up to 300 V The LED turns ON when the input is closed or with voltage 19 Enable key for HV tests 20 Function keys The twelve buttons to the right behave as a portable phone ENTER confirms what is edited DEL o If the field is numeric it deletes the first digit ...

Страница 13: ...mote push button option PII42175 30 USB connection only for ISA diagnostic 31 Flash disk connector for the local test results saving or for moving the local test results from the local memory 32 ETHERNET connection to the PC It incorporates two lights which turn on when the test set is connected 33 Communication Connector to the external devices TD 5000 STCS STDE Table 11 Left panel components Sho...

Страница 14: ... 24 Power supply connection to external optional modules TD5000 BUX3000 STCS Booster 20 A DC 25 High voltage output connectors rated 2 kV AC ATTENTION The connectors to this input can be removed only acting on the connector body Do not pull the cable 26 High AC current output connectors rated 800 A 27 High DC current output connectors rated 400 A 34 F6 fuse Table 12 Right panel components Shop for...

Страница 15: ...V in contact IEC EN 61000 4 3 Electromagnetic compatibility EMC Part 4 3 Testing and measurement techniques Radiated radio frequency electromagnetic field immunity test Immunity tests for radio frequency interference Test values f 900 5 MHz field 10 V m modulated AM 80 1 kHz IEC EN 61000 4 4 Electromagnetic compatibility EMC Part 4 4 Testing and measurement techniques Electrical fast transient bur...

Страница 16: ...ll but high voltage outputs IP4X for high voltage outputs Insulation resistance at 500 V DC 10 MΩ Ground resistance at 200 mA DC 0 1 Ω Operating temperature 10 55 C storage 20 70 C Operating relative humidity 5 95 without condensing Storage relative humidity 0 96 without condensing Altitude less than 2 000 m IEC 60068 2 6 Environmental testing Part 2 6 Tests Test Fc Vibration sinusoidal Vibration ...

Страница 17: ... the following outputs high AC current high DC current high AC voltage Loop control of the selected output The transformer includes also the outputs Low AC current Low DC current Low AC voltage but they are not loop controlled Output adjustable from zero to the maximum value The specified output power is available at 25 C maximum of external temperature and with a power supply error of 2 maximum F...

Страница 18: ... the 800 A range Guaranteed 0 2 of the reading 0 2 of the 800 A range Table 16 High AC current output characteristics 2 2 3 2 2 High DC current The output is available only on the STS 5000 The following table lists the output characteristics Current output A Output power W Load time s 400 2 600 140 300 1 950 180 200 1 300 2 h 100 630 2 h Table 17 High DC current output characteristics 1 2 The foll...

Страница 19: ...ets Table 19 Low AC current output characteristics 3 2 4 Low DC current The output is available on the STS 5000 and STS 4000 Type of generator not controlled low DC current The output current can be manually adjusted using the front panel controls and measured via the test set current meter The following table lists the output characteristics Maximum output current 6 A DC Maximum output voltage 65...

Страница 20: ...range Voltage range V Output current A Output power VA Load time s 2 000 1 25 2 500 60 2 000 1 2 000 130 2 000 0 5 1 000 2 h Table 21 High AC voltage output characteristics 1 4 Voltage range V Output current A Output power VA Load time s 1 000 2 5 2 500 60 1 000 2 2 000 130 1 000 1 1 000 2 h Table 22 High AC voltage output characteristics 2 4 Voltage range V Output current A Output power VA Load t...

Страница 21: ...rror rdg rg rdg rg 5 1 0 2 0 05 0 4 0 1 0 1 0 5 0 1 0 05 0 05 0 1 0 1 0 1 0 05 0 01 0 1 0 1 0 2 0 2 0 2 Table 25 High AC voltage current ranges and associated errors The following table lists the phase shift metering characteristics Metering range 0 360 0 Resolution 0 1 Accuracy 0 1 typical 0 2 maximum for amplitudes more than 10 of the metering range Table 26 High AC voltage phase shift metering ...

Страница 22: ...ics This output goes to a safety connector 3 2 8 Output frequency The following table lists the frequency range on all the AC outputs Frequency 15 500 Hz Frequency resolution 10 mHz Frequency accuracy 100 ppM output voltage 200 V Table 29 Frequency range on all the AC outputs 3 2 9 Other features of main outputs The following table lists other features of main outputs Zero crossing control The gen...

Страница 23: ...ranges with automatic selection with a shielded connector DC voltage up to 10 V DC four ranges with automatic selection with two 4 mm safety banana sockets On the same sockets is also available an Ohmmeter for the 2 wire resistance measurements from 0 1 20 kΩ Above inputs allow measuring CT or VT outputs or any other source The selected input is shown in the front panel with a LED All inputs have ...

Страница 24: ...n four thresholds can be selected 5 V 24 V 48 V or 80 V When the input is closed or with voltage an LED on the front panel turns on Wrong selection protection If a voltage is applied when clean input is selected input circuits are not damaged provided that the voltage is less than 300 V Input connection two safety 4 mm banana sockets Time measurement elapsed time between the test start and the Dig...

Страница 25: ...owing table lists the parameters for the CT VT and PT ratio measurement Range Resolution Ratio range Typical accuracy Maximum accuracy 0 9 999 1 0 8 166 0 20 0 40 167 1 666 0 25 0 50 1 667 9 999 0 30 0 60 Table 35 Parameters for CT VT and PT ratio measurement For the polarity test the phase shift between the two parameters is tested Answer is OK if phase shift is less than 10 The ratio and the pol...

Страница 26: ... measuring the corresponding current The following table lists the range and accuracy the impedance is 100 Ω the maximum impedance is 2 MΩ HV source V I output A Impedance range Ω Resolution mΩ Typical accuracy Maximum accuracy 500 0 5 5 1 000 20 0 25 0 1 0 5 0 2 500 0 05 0 5 10 000 200 0 10 0 1 0 2 0 2 1 000 0 5 2 5 2 000 400 0 25 0 1 0 5 0 2 1 000 0 05 0 5 20 000 2 000 0 10 0 1 0 2 0 2 2 000 0 0...

Страница 27: ...le 40 Main features of the display 3 9 Test control Test control by the START STOP pushbutton Pressing it the output is generated after test selection according to the type of test During ON if a manual control test is selected the operator adjusts the output at the desired value Test saving Automatic save After operator confirmation Shop for Power Metering products online at 1 877 766 5412 www Po...

Страница 28: ...ormed automatically The feature is available for the tests of Current Voltage and Power transformers Test plans can be saved or recalled like test results Up to 64 settings can be stored and recalled setting no 0 is the default one and pops up at power on Settings are permanently stored in the memory new settings can be written to the same address after confirmation For normal mode operation it is...

Страница 29: ...gure 8 Current Transformers Header and Nominal Values page tab Description The following image exhibits the tab Nominals Conventional Type without the IEC61850 9 2LE output Figure 9 Current Transformers Header and Nominal Values page tab Nominals From these nominal data the program computes the nominal saturation knee Shop for Power Metering products online at 1 877 766 5412 www PowerMeterStore ca...

Страница 30: ...sic information pressing the shortcut Edit Test Plan at the side of the icon and enter the Editor mode else it is possible to continue with a single test The following image exhibits the Current Transformers test page Conventional Type Figure 11 Current Transformers test page Conventional Type The page allows selecting the test to be performed the corresponding window is opened and test parameters...

Страница 31: ...nce During the test test results are stored in the memory At the end of the tests settings and results can be downloaded to a PC with PADS program included in the TDMS suite which comes with the device The software allows saving test results into a file examining them printing them Optionally PADS allows controlling the device from the PC It is also possible to edit settings with PADS and to uploa...

Страница 32: ...rement is performed applying low AC current to the CT burden and measuring the voltage drop Input parameters are the following The nominal secondary current The nominal test current The display shows The actual current output The voltage drop across the burden For the burden VA rating at the nominal current angle power factor 3 Excitation Curve The excitation curve is tested connecting the high AC...

Страница 33: ...ramping the test voltage and current As the test is completed the test voltage the maximum current the total elapsed time the isolation impedance not resistance 6 Polarity Check The test is performed connecting the high AC current source to the primary side generating a special waveform and measuring the induced secondary current with the optional PLCK polarity sensor Input parameters are the foll...

Страница 34: ...io and ratio error Phase shift and polarity 10 Tan δ measures The test is performed using the TD 5000 optional module and then connecting the high AC voltage source to test target Displayed parameters are the following Test type 1 Where the HV output is applied in case of a specific device under test CT VT PT or bushing the options are displayed Capacitance 2 In case of a specific device under tes...

Страница 35: ...he Sample Values Corrected primary current polarity error ratio and error Table 44 Current Transformers tests 4 4 ATTENTION for the excitation curve test the following standards apply IEC 60044 1 paragraph 14 4 1 The knee point is the voltage at which the increase of 10 of voltage causes the increase of the 50 of the exciting current ANSI C57 13 1 chapter 9 Plotting a log log diagram with the exci...

Страница 36: ...nection Y or Delta The HV range The nominal test voltage and frequency The display shows the following The actual test voltage The secondary voltage The value of the secondary voltage with the nominal primary voltage Actual ratio and ratio error Phase shift and polarity 3 Burden The burden measurement is performed applying low AC voltage to the VT burden and measuring the corresponding current Inp...

Страница 37: ...ltage Frequency test table It allows to input the test voltage and frequency Nominal Values Capacitance and TD reference values In case of a specific device under test CT VT PT or bushing these values are kept from the related headers Temperature compensation The Capacitance and TD values vary with the temperature optionally the k factor is used to compensate the measures Test table Results table ...

Страница 38: ...mpensated For the dynamic resistance the measured values are the Ripple and the Slope and the diagrams of the current or of the resistance During the current discharge voltage and current are displayed The dynamic resistance measurement is performed also without the STCS option The tap changer command is manual 3 Winding Resistance Auto The test is performed applying low DC current to the PT prima...

Страница 39: ...ection is performed via the option and the test is completely automatic Input parameters are the following The test current and frequency The type of winding The phase under test It is also possible to compensate the test temperature The test set measures the output voltage and computes the related parameters The display shows the following Phase shift the power loss the R X Z and inductance of th...

Страница 40: ...ance and TD reference values In case of a specific device under test CT VT PT or bushing these values are kept from the related headers Temperature compensation The Capacitance and TD values vary with the temperature optionally the k factor is used to compensate the measures Test table Results table Test voltage current and frequency Capacitance Tan δ power factor PF Power active reactive apparent...

Страница 41: ...under test CT VT PT or bushing the options are displayed Generation mode to execute a single shot a voltage or a frequency gradient Test mode It is selected in reference to the TD 5000 and the device under test connection In case of a specific device under test VT in this case the more correct test mode is automatically selected considering also the selections 1 and 2 Voltage Frequency test table ...

Страница 42: ...are the following Output voltage range Test voltage Test frequency The display shows the following Test probe distance Output voltage Test probe voltage Output current Phase shift Earth resistance Evaluation Ground Resistance Values from 0 05 Ω to 300 Ω The test of ground grid resistance is performed applying current between the ground grid and the auxiliary ground spikes With the STLG option the ...

Страница 43: ...t current Location description Location coordinates Measured voltage Voltage in case of actual fault 5 Line Impedance Test parameters are the following Line impedance Earth impedance Mutual factor The test is performed applying voltage to the line to be tested and measuring the corresponding current and voltage The test is performed with the STLG option Input parameters are the following Type of t...

Страница 44: ... current disappears M V CB With the option BUX 2000 and BUX 3000 it is possible to perform high current tests Input parameters are the following Current range output current Output voltage Frequency It is possible set the type of digital input NO NC wet dry voltage threshold The display shows the following data Test current or test voltage Trip delay External voltage and current measurements Table...

Страница 45: ...ent output low AC voltage output digital input Terminated on both sides with a 4 mm banana plug X X 12 No 2 High voltage connection cables 6 m long 10 m long option PII16175 15 m long option PII57175 5 kV with earth screen Terminated on one side with the HV connector and on the other side with a 4 mm banana plug X X 13 No 2 High current connection cables 70 mm2 6 m long 9 m for option PII16175 and...

Страница 46: ...ing siren and light 5 Main supply 100 230 V 15 48 62 Hz 6 Power consumption Less than 1 kW in normal use 1 8 kW 3 600 VA 16 A when generating the maximum power on High AC voltage output or high DC current output For a maximum period of 25 s the supply power can be up to 3 6 kW 7 000 VA 32 A when generating the maximum power on the 800 A output or on the options BUX 2000 and BUX 3000 7 Dimensions 4...

Страница 47: ...porting the device The case has handles and wheels The following table lists the Transit case main characteristics Characteristic Note Handling Handles on the top and on the side Wheel 2 Dimensions 450 x 550 x 850 mm Weight 15 kg Table 56 Transit case main characteristics The following table lists the Transport cases coding Instrument Code STS PII17175 TD 5000 RCTD STLG PII19175 BUX 3000 BUX 2000 ...

Страница 48: ...l serial number operator date and time Nominal values type of device power primary and secondary voltage or current Parameters tolerances For PT s nominal tap voltages Test result table with comments about the test results OK or NO Notes and comments The program allows also to do the following Upload or download test settings Upload or download test set calibration parameters PADS software is subj...

Страница 49: ...TS only The cable length is 20 m 4 4 Warning Strobe Light code PII43175 The following image exhibits the Warning Strobe Light Figure 15 Warning Strobe Light This option applies to all STS models The Warning Strobe Light alerts when the test is performed A siren is also included It has to be connected to the Safety Warnings 28 connector The following image exhibits the 28 connector Figure 16 Safety...

Страница 50: ... the STS EXT DEVICE connector The STCS option comes complete with the following connection cables Cable Characteristics No 10 cable reels Marked with different colors 15 m long No 2 High Voltage cables 2 m long one red and one black terminated on one side with the HV connector and on the other side with 4 mm banana plugs No 6 Cables 2 m long three red and three black for the connection to DC curre...

Страница 51: ...r 20 A DC option The module characteristics are the following Maximum output current 20 A DC Maximum power on output sockets 400 W Current output switch controlled by STCS Current output amplitude controlled by STS 5000 or STS 4000 The option comes complete with the following connection cables No 2 interface connection cables to STCS No 1 Booster power cable to connect the option to the STS No 1 P...

Страница 52: ...racteristic Note Generator Constant current voltage limited Maximum test current 7 A DC Maximum test voltage 70 V DC Current resolution 7 mA Output current stability Better than 0 5 of the rated value Case Plastic case with handle Connections Connection to the STS control connector Two sockets to the STS DC output Two sockets to the transformer to be de magnetized Cables No 1 interface connection ...

Страница 53: ...is no permanent damage if instead the energy is too high the arrester is short circuited and fuses blow The option has the dimensions 35 x 70 x 20 mm it is connected to STS 10 V measure output with two 4 mm banana plugs 4 9 BUX 3000 BUX 2000 current booster codes PII50175 PII56175 The optional current boosters BUX 3000 and BUX 2000 allow performing tests up to respectively 3 000 A and 2 000 A This...

Страница 54: ...or the BUX 3000 module The cable includes a shunt which converts the output current into voltage No 2 Metering cables 2 m long terminated on both sides with 4 mm banana plugs for the connection of the STS Current input to the CT secondary The following table lists the maximum test currents and durations for the power supply of 230 V for BUX 3000 Test current A Output power VA On duration s 500 300...

Страница 55: ... CT cable 20 m long terminated with connectors on both sides BUX 3000 weight 16 kg BUX 2000 weight 18 kg Cable and clamps weight 8 2 kg Dimensions external diameter 190 mm height 120 mm 4 10 Current Clamp code PII16102 The following image exhibits the Current Clamp option Figure 22 Current Clamp This option applies to STS 5000 The current clamp avoids opening the secondary current circuit when per...

Страница 56: ...the voltage drop is much less than 40 mV even when the maximum possible current is generated in this case check the polarity including the connection cables to the relay in order to increase the voltage drop 4 12 STLG current injection power transformer for ground tests code PII70175 This option applies to STS 5000 and 4000 models The following image exhibits the STLG option Figure 24 STLG option ...

Страница 57: ...STER connector No 2 Cables 6 m long for the current output connection terminated with Kelvin type clamps No 6 cables red and black 6 m long No 1 cable for the connection of the STLG voltage meter output to the STS 300 V meter No 1 bridge to short circuit the current meter output if it is not connected to STS Cable transport case ATTENTION For safety reasons STLG must always acts together with the ...

Страница 58: ...lt it measures Hertz Ohm mOhm mA capacitance and temperature Operating temperature 20 55 C humidity 0 80 CAT III 1000 V CAT IV 600 V Accuracy V CA 0 7 20 counts Accessories probes hermocouple 4 AAA batteries calibration certificate quick start guide Step and touch resistive selector with active filter N 1 Box with resistances 1kR for multimeter which includes an active filter to make the measureme...

Страница 59: ...eter N 1 Grounding clamp with tightening capacity up to 35 mm on cylindrical conductors Switching Stick Kit N 1 Kit compliant to CEI EN 61230 CEI EN 61235 CEI EN 60855 CEI EN 50508 in three parts for voltages 380 kV Connection cables for phase clamps N 3 Cable 10 m section 10 mm2 terminated on one side with lugs for connection to phase clamps and the other side with clamps suitable for the connect...

Страница 60: ...SG option characteristics are the following Nominal AC spark over voltage 1 000 Vrms Impulse spark over voltage 2 000 Vpeak Short circuit proof with 25 kAeff 100 ms 36 kAeff 75 ms Connection via three cylindrical studs 16 20 or 25 mm diameter for the clamps connection Each stud is connected to the voltage suppressor The stud dimensions must be specified at order Tightening torque 15 Nm Metallic al...

Страница 61: ...ort circuit current 0 5 s 42 0 kA max short circuit current 1 0 s 29 6 kA Table 67 Studs characteristics 4 15 2 Surge arrester for STSG code PII77175 If a high voltage spike occurs on the line during the execution of the tests the STSG surge arresters must be replaced Technical characteristics Nominal AC spark over voltage 940 Vrms Impulse spark over voltage 1 600 Vpeak Short circuit proof with 25...

Страница 62: ...odes and spanner 3 Cable 1 5 mm2 200 m long mounted on reel terminated on one side with safety 4 mm socket and on the other side with safety 4 mm banana plug 2 Rectangular probe With shaft 0 8 m long with safety 4 mm sockets Material zinc plated iron dimensions 250 x 120 mm thickness 10 mm with rubber protection on the foot on the rod and on the handle and two safety sockets The surface in touch w...

Страница 63: ... to earth on both sides Before connection to the HV line it is necessary to measure the current flowing into the ground connections using a clamp meter to evaluate the residual voltage coupling The following table lists the Current Clamp Meter main characteristics Characteristic Value Maximum current 400 A AC Digits 4 Accuracy 2 5 digits Clamp opening 37 mm Table 69 Current Clamp Meter main charac...

Страница 64: ...ded to minimize the volume The following table lists the main characteristics Characteristic Value Material Stainless Steel Weight 19 kg Dimensions closed 68 x 34 x 106 cm Wheel dimensions Ø 25 x 9 cm Table 70 Trolley characteristics 4 19 TD 5000 module for the Tan δ loss angle factor measure code PII11175 This option applies to all STS XXX models The following image exhibits the TD 5000 Figure 29...

Страница 65: ...he patented circuitry and the variable frequency output make test results immune from external noise even in the very highly noisy environment The noise it is suppressed using a narrow bandwidth numerical filter In case of a test frequency equal to the line frequency the measurements are automatically performed at different frequencies Fline 4 Hz The module has two panels on the sides and one belo...

Страница 66: ...wing table lists its main characteristics Maximum output voltage V Output current mA Maximum output duration Frequency Hz 12 000 300 120 s 15 500 125 1 h 100 steady Table 71 HV generator main characteristics ATTENTION At 10 kV the output current value and duration has the same characteristic The following table lists the voltage and current output measurement accuracy and resolution Internal measu...

Страница 67: ...igits accuracy typical 0 3 of the value 0 01 guaranteed 0 5 of the value 0 02 Measurement range 3 over 100 Resolution 5 digits accuracy typical 0 5 of the value 0 03 guaranteed 0 8 of the value 0 05 Power factor PF cos φ Measurement range 1 from 0 to 10 capacitive Resolution 5 digits accuracy typical 0 05 of the value 0 005 guaranteed 0 1 of the value 0 005 from 45 to 70 Hz current 10 mA Measureme...

Страница 68: ...nana plug and on the TD 5000 side with two plugs one for the HV and the other one for the ground No 1 clamp 25 mm opening with a connector which mates with the HV cable with 6 mm plug No 1 bigger clamp 60 mm min opening with a connector which mates with the HV cable with 6 mm plug No 2 Shielded connection cables 20 m long for the connection to the metering points Terminated on the TD 5000 side wit...

Страница 69: ...H L parasitic capacitance between High voltage and Low voltage C H G parasitic capacitance between High voltage and Ground C L G parasitic capacitance between Low voltage and Ground C L T parasitic capacitance between Low voltage and T C T G parasitic capacitance between T and Ground C H Tap parasitic capacitance between High voltage and Tap C Tap G parasitic capacitance between Tap and Ground Tes...

Страница 70: ...udes an extremely high accuracy high voltage and low Tan δ capacitor The device includes also 4 resistances to be connected to the capacitor in series mode to generate some known Tan δ values The following image exhibits the connection of the CAP CAL to the TD 5000 Figure 34 Connection of the CAP CAL to the TD 5000 A calibration certificate is issued by ISA laboratory and it is supplied together t...

Страница 71: ...nection cables No 2 HV connection cables 2 m long terminated on the TD 5000 side with the HV connector and on the other side with the proper termination for the cell 4 22 Digital Thermo Hygrometer code PII44175 The following image exhibits the Digital Thermo Hygrometer Figure 36 Digital Thermo Hygrometer Some tests performed by STS such as Tan δ are influenced by temperature and humidity The optio...

Страница 72: ...ies to TD 5000 and allows increasing the test current and getting the maximum test voltage on high capacitive burdens The following image exhibits the RCTD option Figure 37 RCTD option Each RCTD is composed by two inductors with a nominal value of 40 H and a steady current of 0 6 A The maximum current on each inductor can be up to 1 A for more a limited time The inductors can be connected in paral...

Страница 73: ... 1 safety cable To STS 10 m long 2x0 5 mm2 N 1 Safety IN connector For the safety loop closure N 1 Safety cable To connect another RCTD 2 m long 2x0 5 mm2 N 1 clamp Screw terminal with plate for the HV connection N 2 HV cables 5 m long not shielded terminated with 6 mm male connectors Table 79 RCTD cables Shop for Power Metering products online at 1 877 766 5412 www PowerMeterStore ca ...

Страница 74: ...utputs are removed The high voltage output has the following protections Confirmation key if not turned the HV output is not generated The HV is generated only if selected the HV selection is confirmed by warning lights Thermal sensor on the main transformer In case of over temperature an alarm message is displayed Thermal sensor on the active electronic devices In case of over temperature an alar...

Страница 75: ...D 8 July 2014 Added STCS Booster 20 A Winding Resistance Module option 9 October 2014 Added STSA images and STSA3V option 10 December 2014 Added STLG ground grid testing module Added STSG safety grounding module Revised 11 January 2015 Added the STDE demagnetizer option 12 February 2015 Added BUX2000 option Added IEC61850 9 2LE function description Added long cables kit PII57175 Trigger options re...

Страница 76: ...RNING STROBE LIGHT 51 FIGURE 16 SAFETY WARNINGS 28 CONNECTOR 51 FIGURE 17 STCS OPTION 52 FIGURE 18 STCS BOOSTER 20 A DC OPTION 53 FIGURE 19 STDE OPTION 54 FIGURE 20 STSA SURGE ARRESTER 55 FIGURE 21 BUX 3000 OPTION 55 FIGURE 22 CURRENT CLAMP 57 FIGURE 23 PLCK OPTION 58 FIGURE 24 STLG OPTION 58 FIGURE 25 STSG OPTION 62 FIGURE 26 GROUND GRID TEST ACCESSORIES KIT 64 FIGURE 27 CURRENT CLAMP METER 65 FI...

Страница 77: ...LTAGE CURRENT RANGES AND ASSOCIATED ERRORS 23 TABLE 26 HIGH AC VOLTAGE PHASE SHIFT METERING CHARACTERISTICS 23 TABLE 27 LOW AC CURRENT OUTPUT CHARACTERISTICS 23 TABLE 28 HIGH POWER OUTPUT OUTPUT CHARACTERISTICS 24 TABLE 29 FREQUENCY RANGE ON ALL THE AC OUTPUTS 24 TABLE 30 OTHER FEATURES OF MAIN OUTPUTS 24 TABLE 31 OUTPUTS MEASUREMENT 25 TABLE 32 RESOLUTION AND ACCURACY 25 TABLE 33 PHASE ANGLE RESO...

Страница 78: ...E 65 KIT ELEMENTS 1 2 60 TABLE 66 KIT ELEMENTS 2 2 61 TABLE 67 STUDS CHARACTERISTICS 63 TABLE 68 ELEMENTS OF THE GROUND GRID TEST ACCESSORIES KIT 64 TABLE 69 CURRENT CLAMP METER MAIN CHARACTERISTICS 65 TABLE 70 TROLLEY CHARACTERISTICS 66 TABLE 71 HV GENERATOR MAIN CHARACTERISTICS 68 TABLE 72 VOLTAGE AND CURRENT OUTPUT MEASUREMENT ACCURACY AND RESOLUTION 68 TABLE 73 FREQUENCY CHARACTERISTICS OF TD ...

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