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L6555

Emax

10/74

Doc. no.

Model

Apparatus

Scale

Page No

1SDH000460R0002

Vertical terminals

Horizontal and front terminalsi

Circuit-breaker

Iu [A]

Continuous

current-carrying capacity

Busbar

cross-section

Continuous

current-carrying capacity

Busbar

cross-section

[A]

[mm

]

[A]

[mm

]

35°C

45°C

55°C

35°C

45°C

55°C

E3S/H/V 12

1250

1x(60x10)

1250

1x(60x10)

E3S/H/V 16

1600

1x(100x10)

1600

1x(100x10)

E3S/H/V 20

2000

2x(100x10)

2000

2x(100x10)

E3N/S/H/V 25

2500

2x(100x10)

2500

2450

2400

2x(100x10)

E3N/S/H/V 32

3200

3100

2800

3x(100x10)

3000

2880

2650

3x(100x10)

E3L 20

2000

2x(100x10)

2000

1970

2x(100x10)

E3L 25

2500

2390

2250

2x(100x10)

2375

2270

2100

2x(100x10)

E4H/V 32

3200

3x(100x10)

3200

3150

3000

3x(100x10)

E4S/H/V 40

4000

3980

3500

4x(100x10)

3600

3510

3150

6x(60x10)

E6V 32

3200

3x(100x10)

3200

3x(100x10)

E6H/V 40

4000

4x(100x10)

4000

4x(100x10)

E6H/V 50

5000

4850

4600

6x(100x10)

4850

4510

4250

6x(100x10)

E6H/V 63

6300

6000

5700

5250

7x(100x10)

Fig. 16

Fig. 17

Positioning the fi rst anchoring baffl e of the busbars according to the short-circuit current

Anchoring to the switchgear

FLAT

FRONT

VERTICAL

HORIZONTAL

E1-E2

E3-E4-E6 E1-E6

HORIZONTAL

250

150 –

VERTICAL

250

150 –

FRONT

–

250

FLAT

–

250

Содержание Emax E1

Страница 1: ...Emax Installation service and maintenance instructions for low voltage air circuit breakers Installation and service instructions 1SDH000460R0002 L6555 ...

Страница 2: ...ety principles and service operations are not included It is important to note that this documents contain warnings and cautions against certain specific service methods that could cause personal injury to service personnel damage equipment or render it unsafe These warnings do not cover all conceivable ways in which service whether or not recommended by ABB might be performed or the possible haza...

Страница 3: ...n the switch and the control panel 23 8 4 4 Dismantling the tab cap and arcing chambers 24 8 4 5 Mechanical control 25 8 4 6 Electrical and mechanical accessories 25 8 4 7 Checking contact wear 25 8 4 8 Protection releases 26 8 4 9 Test with SD Testbus2 optional 26 8 4 10 Maintenance operations final checks 27 8 4 11 Interlock 27 8 4 12 Extractable 27 9 Measures to be taken for any operating anoma...

Страница 4: ... own terminals for connection to the power circuit in the withdrawable version the circuit breaker comprises the moving part of the apparatus which is completed with a fixed part fitted with the terminals for connection to the power circuit of the installation The moving part and the fixed part coupled by means of special contacts installed in the fixed part 1 2 External front view of the circuit ...

Страница 5: ...ng the closing springs 14 Racking out device only for withdrawable circuit breakers 15 Service releases shunt closing release shunt opening release undervoltage release on request 16 Support for releases 17 Operation counter 18 Earthing 19 Auxiliary contacts 20 Key lock and padlocks in the open position extracted test extracted 21 Key lock in the open position Selective circuit breaker Current lim...

Страница 6: ...e Fig 5 The maximum number of stackable circuit breakers is indicated in figure 6 Keep the circuit breaker in the open position and with the closing springs unloaded to avoid unnecessary stresses and the risk of accidents to the person Fig 5 Fig 6 With regard to lifting follow the instructions the circuit breakers must be placed on a sturdy supporting surface and lifted prefer ably by means of a s...

Страница 7: ...g installing maintaining or removing the circuit breaker from service Some operations must be per formed when the circuit breaker is energized In this case reasonable care and compliance with all safe working practices is required 4 2 Installation of the fixed circuit breaker Fix the circuit breaker to a horizontal surface using the screws M10 x 12 min 4 3 Installation of the fixed part of the wit...

Страница 8: ...E Emax withdrawable version air circuit breakers for applications on board a ship addi tional fixing on the sides of the fixed part itself is recommended the M12 screws and the spacers are not provided in the supply Fig 11 E1 E2 E3 E4 E6 Spacers Spacers 4 4 Installation of the flange on the compartment door Fig 13 Make the compartment door drillings specified in the Overall dimensions paragraph At...

Страница 9: ...l so the width of the connection busbars should be the same as that of the terminal Different connection capacities can be obtained by adjusting the thickness and number of busbars in parallel In some cases reductions in the width of the connection in relation to that of the terminal are allowable as shown in the following examples Vertical terminals Horizontal and front terminalsi Circuit breaker...

Страница 10: ...200 3200 3100 2800 3x 100x10 3000 2880 2650 3x 100x10 E3L 20 2000 2000 2000 2000 2x 100x10 2000 2000 1970 2x 100x10 E3L 25 2500 2500 2390 2250 2x 100x10 2375 2270 2100 2x 100x10 E4H V 32 3200 3200 3200 3200 3x 100x10 3200 3150 3000 3x 100x10 E4S H V 40 4000 4000 3980 3500 4x 100x10 3600 3510 3150 6x 60x10 E6V 32 3200 3200 3200 3200 3x 100x10 3200 3200 3200 3x 100x10 E6H V 40 4000 4000 4000 4000 4x...

Страница 11: ...t breakerterminals No of screws for phase No of screws for phase No of screws for neutral Fixed part terminals No of screws for neutral M12 high strength screws Tightening torque of the main terminals 70 Nm 3 3 4 2 4 4 6 3 6 6 3 3 4 2 4 4 6 3 6 6 5 2 Earthing The fixed circuit breaker and the fixed part of the withdrawable circuit breaker have one or two terminals on the rear marked with the speci...

Страница 12: ...minals of the fixed connector are immediately accessible when the compartment door is open Furthermore a terminal box identified by code XF is available for connecting the position contacts of the moving part in relation to the fixed part The connector and terminal box have screw terminals Fig 20 1 2 3 1 2 3 3 1 2 E1 E2 E3 E4 E6 5 contacts in position E4 E6 10 contacts in position E1 E2 E3 10 cont...

Страница 13: ...e the front protection 3 of the release by taking action on the blocks 1 as shown in the figure remove the protection release 4 removing the side nuts 2 and then sliding the release out from the front of the circuit breaker Fig 21 1 3 4 2 Being of the two way type changeover contacts the auxiliary contacts can be modified from break contacts to make contacts and vice versa simply by moving the out...

Страница 14: ...uit breaker Supply the shunt opening release at the corresponding rated voltage The circuit breaker opens correctly The signals are correct 5 Shunt closing release if any Open the circuit breaker Loading the springs Supply the shunt closing release at its rated voltage The circuit breaker closes correctly The signals are correct 6 Circuit breaker lock in the open position with key or padlocks Open...

Страница 15: ...er connected test isolated and disconnected 10 Seat for the racking in out lever 11 Lever releasing the racking in out operation 12 Key lock on the racking in out operation on request 13 Padlock on the manual closing operation on request 14 Padlock on the racking in out operation on request Fig 23 1 8 2 3 4 6 5 7 1 8 2 3 4 6 5 7 10 11 9 12 14 13 Fixed circuit breaker Withdrawable circuit breaker N...

Страница 16: ...again when the power returns It is in any case always possible to complete the reloading operation manually c Closing the circuit breaker The operation can only be carried out with the closing springs fully loaded For manual closing press the pushbutton 5 marked with the letter I When there is a shunt closing release the operation can be carried out remotely by means of the special control circuit...

Страница 17: ... C Fig 28 Press NOTE In relation to the fixed part the circuit breaker moving part can take up different positions identified as follows DISCONNECTED the moving part is inserted in the fixed part WITHOUT any connection between the power terminals and WITHOUT coupling the sliding contacts for the auxiliary circuits in this position all electrical operation of the circuit breaker is prevented On the...

Страница 18: ...n Push the moving part right into the fixed part Lower the releasing lever 11 Insert the crank handle in the corresponding coupling 10 Proceed to turn the crank handle clockwise until the TEST ISOLATED indication appears on the indicator 9 During the initial turns the crank handle must oppose no any particular resistance to rotation Should it be necessary to carry out offline circuit breaker opera...

Страница 19: ...es can withstand the following operation without replacement of parts 1 Rated uninterrupted current Mechanical life 2 Electrical life 2 Iu 40 C A No of operations x 1000 Frequency operations hour 440 V No of operations x 1000 690 V No of operations x 1000 Free operations hour E1 B N 800 25 60 10 10 30 1000 1250 25 60 10 8 30 1600 25 60 10 8 30 E2 B N S 800 25 60 15 15 30 1000 1250 25 60 15 15 30 1...

Страница 20: ...e switch and check that the control springs are unloaded in the case of a circuit breaker work on the circuit breaker after it has been extracted disconnected from the fixed part WARNING before working on fixed switches or switches on fixed parts disconnect the supply to the power circuit and to the auxiliary circuits and earth the terminals in a visible manner both on the supply and on the load s...

Страница 21: ...is a minimum release remove the coils support and release the control springs closing and opening the switch Fig 34 8 3 5 Mechanical control Clean at the points indicated in figure 35 For excessive deposits a laminated dilutant such as Henkel 273471 or the equivalent can be used Lubricate at the points indicated in fig 35 the opening closing shafts and hooks with MOBILGREASE 28 EXXON MOBIL Check t...

Страница 22: ...Bus2 on a PC with a Bluetooth or USB connection depending on the version of BT030 used Once the connection between the relay and PC has been installed check that there are no alarm signals from the relay other wise consult the paragraphs Error Messages and or Troubleshooting in this manual In normal operating conditions the trip test and the autotest can be run depending on the type of relay for f...

Страница 23: ...ndensation or oxida tion also inside the fixed part of the apparatus if the switch is extractable Check that there are no factors such as overheating or cracks that may compromise switch insulation Check the circuit breaking couple for damage for the extract able switch see feature A fig 39 The couple must be silver in colour without trace of erosion or smoke Check that there are no foreign bodies...

Страница 24: ...ws 2 as shown in the figures Remove the front escutcheon plate 3 by removing the four screws 4 Remove if present one or both side guards 5 by removing the front 6 and lateral 7 screws Remove the arcing chambers 8 by removing the screws 9 Fig 41 If there is a minimum release dismantle the coil support and unload the control springs by opening and closing the switch Fig 42 ...

Страница 25: ... Electrical and mechanical accessories Check that the accessories are tightly fixed to the switch Check that the electrical accessories are wired correctly to the switch Reduction gear after 10000 operations check brushes for wear and replace the reduction gear if necessary Check that the releases YO YU YC are in good condition no excessive wear overheating breakages fig 44 Check that the mechanic...

Страница 26: ...pplicable On PR122 and PR123 check the percentage of wear to the contacts of the switch At the end remove the battery unit PR030 B from the relay Consult this manual for details about release PR121 Consult manual 1SDH000460R0011 for details about releases PR122 PR123 8 4 9 Test with SD Testbus2 optional Connect unit BT030 or BT030 USB to the relay to be tested Run the programme SD TestBus2 on a PC...

Страница 27: ...operation of minimum voltage release if present Check operation of opening release if present Check operation of closing release if present Check operation of auxiliary contacts of switch if present Check operation of lock of switch in open position with key or padlocks if present 8 4 11 Interlock Check that the interlock devices have been correctly installed and operate correctly between adjacent...

Страница 28: ...ctions fuses interlocks protection circuit breakers and consent contacts Screws for clamping loose wires and auxiliary circuits Check tightness of the screws connecting the wires Incorrect electrical connections in the power supply circuit Check the connections with the corre sponding circuit diagram Damaged coil Replace the coil Operating mechanism blocked Operate by hand If the fault persists pl...

Страница 29: ...giving the opening control to the shunt closing release Reference figures in the electrical circuit diagrams YO 4 YC 2 YO2 8 Power supply Un 24 V DC 30 V AC DC 48 V AC DC 60 V AC DC 110 120 V AC DC 120 127 V AC DC 220 240 V AC DC 240 250 V AC DC 380 400 V AC 440 V AC Operating limits CEI EN 60947 2 Standards YO YO2 70 110 Un YC 85 110 Un Inrush power consumption Ps DC 200 W Inrush power time 100 m...

Страница 30: ...5 s Insulation voltage 2500 V 50 Hz per 1 min It is always supplied with limit contacts and microswitch for signalling closing springs loaded Reference figure in the electrical circuit diagrams M 1 Mechanical and electrical trip signalling for overcurrent releases The following signals are available following tripping of the overcurrent release a Mechanical trip signalling for overcurrent releases...

Страница 31: ...g contacts and 2 test position signal ling contacts main contacts isolated but sliding contacts connected Reference figure in the electrical circuit diagrams S75I 31 32 S75T 31 32 S75E 31 32 c Contact for signalling closing springs loaded This consists of a microswitch which allows remote signalling of the state of the circuit breaker operating mechanism closing springs The contact is always suppl...

Страница 32: ...mpartment door open Transparent protection covers a Protection covers for opening and closing pushbuttons These protection covers applied over the opening and closing pushbuttons prevent the corresponding circuit breaker opera tions except by using a special tool b IP54 door protection This is provided by means of a transparent plastic escutcheon plate which fully protects the front of the circuit...

Страница 33: ...ing closing and undervltage releases at 220V AC DC The geared motor for the automatic charging of the spring is available with a special version for low temperature at 220V AC DC Mechanicalandelectricalsignallingforovercurrentreleasesaccessories auxiliarycontacs terminalsandfixedpartsareincommon to the Emax VF product Transparent pushbuttons protection covers IP54 door protection interlocks homopl...

Страница 34: ...f the cause for tripping also in the self supply condition 4 Extended neutral selection 5 Connection to a PC via wireless Bluetooth with BT030 USB or USB with BT030 USB or Ekip T P 6 Serial connection for external modules HMI030 and Flex Interface 7 Real time date and time adjustable with BT030 USB or Ekip T P 8 Software applications available for relay maintenance and tests 11 1 Safety notes WARN...

Страница 35: ...ed in ABB SACE CB Emax Series of ABB SACE air circuit breakers HW Hardware i Test i Test button on the front of relay In Rated current of the Rating Plug installed in the circuit breaker LTT Low Temperature Technology Special CB version for low temperatures 40 C 70 C MT Thermal memory Relè also called protection unit or protection release RMS Root mean square value SW Software TC Trip Coil opening...

Страница 36: ...t protection A set of accessories adds optional functions to the basic version Temporary accessories PR030 B powers the relay so as to display its state by means of the LEDs and allow the installation operations to be performed BT030 USB for relay powering and communication so as to allow different sorts of information to be supervised via a PC such as the Trip and measurements log file and for re...

Страница 37: ...nsors installed on the internal poles of the circuit breaker or by means of an auxiliary source All that s needed to supply the relay by means of internal current sensors is the presence of minimum three phase turn on current as shown in the table below Provided by a galvanically separated power supplier the external auxiliary power supply ensures continuous for the unit even when there is no curr...

Страница 38: ...elay 12 Rating plug 13 i Test test and info button 14 Test connector for external modules PR030 B BT030 USB Ekip T P PR010 T 12 3 1 Dip switches IThe dip switches on the front of unit PR121 P are used for regulating the tripping thresholds of each protection and the tripping time The available combinations are given alongside each group of dip switches The dip switches for regulating the tripping ...

Страница 39: ...he cause of tripping CS Error Rating Plug Error is displayed in the presence of Vaux and or PR030 B connected during the event The generic Hw trip signal remains in the absence of Vaux and or PR030 B and is displayed by pressing the I test key 4 Orange L led and red I led on 5 The values entered differ from those stored Therefore the relay must be installed see par 12 7 6 In the absence of other i...

Страница 40: ...ty further commands are transmitted to the trip coil until the circuit breaker opens 12 4 1 Protection L Protection L is the only adjustable protection that cannot be disabled since it is for self protection against overloading of the relay itself The type of curve setting is t k I2 and the tripping time is calculated according to the value of If For fault currents If 12ln the tripping time of the...

Страница 41: ...to 100A and LED show Settings inconsistency error With Iu 250A In the absence of Vaux and with I4 30A the SW forces the minimum threshold to 30A and LED show Settings inconsistency error 12 4 5 Neutral Protection Unit PR121 P allows the current signal of the neutral pole to be processed with different ratios in relation to the phase values The following values can be set for this protection InN Of...

Страница 42: ...e best of the two data 10 o 40 ms t2 0 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 s S t k I2 I2 1 1 5 2 2 5 3 3 5 4 5 6 7 8 8 5 9 9 5 10 x In t2 0 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 s 10 In 7 If 6 x In 10 If 6 x In 15 If 6 x In 20 If 6 x In I t k I3 1 5 2 3 4 5 6 7 8 9 10 11 12 13 14 15 x In 30 ms 10 G t k I4 0 2 0 3 0 4 0 6 0 8 0 9 1 x In Where If I4 7 The best of the two data 10 o 40 ms t4 0 1 0 2 0 4 0 8 s G t k...

Страница 43: ...L6555 Emax 43 74 Doc No Model Apparatus Scale Page No 1SDH000460R0002 12 4 8 2 Trip curves for functions L S t k I2 I t k I2 12 4 8 3 Trip curves for functions L S t k I t k ...

Страница 44: ...he relay allows the maximum current reading to be periodically recorded this function must be enabled with test unit BT030 USB or Ekip T P and requires auxiliary voltage 12 5 2 Self monitoring The PR121 P unit provides certain self monitoring functions that allow faults or setting errors to be identified more easily Faults are signalled by a combination of led lights The functions are as follows R...

Страница 45: ... the relay functions correctly even in heavy duty environmental and electromagnetic conditions Pay particular attention to the earth connection 12 6 3 CS and TC connection check WARNING If the PR121 P has been installed by the user remember to check with the CB open and Vaux or PR030 B prior to putting the circuit breaker into service to make sure that the CS and TC cables have been connected corr...

Страница 46: ... occurs FN 6 Expected trip does not happen Function OFF FN enable protection function 7 LEDs irregularly turned on see par 12 3 2 8 Unexpected trip see par 12 3 2 9 L LED orange flashing FN 12 8 2 In the case of a fault WARNING If the PR121 P is suspected of being faulty if there are signs of malfunctions or it has generated an unexpected trip we advise you to strictly follow the recommendations b...

Страница 47: ...or USB flash drive thereby extending the range of information available to the user Communication is enabled via Ekip Connect SW the installation package of which is in the BT030 USB set This set also includes the USB cable and batteries for use in the wireless configuration The unit is connected to the relay by means of the front connector 12 9 4 EKIP T P The Ekip T P unit allows relay powering c...

Страница 48: ...splay Displays the data received from the relay or MM030 note 1 after being configured in the appropriate way it can be connected to the relay or straight to the MM030 1SDH000573R0001 note 2 the HMI030 can be connected to MM030 from MM030 software releases 2 0 onwards 12 9 6 1 Notes about the HMI030 and Flex Interface connection Relay connection for HMI030 or Flex Interface units must be made with...

Страница 49: ...656 566 238 328 26 166 91 5 E4 f 746 328 26 166 91 5 E6 908 782 328 454 26 166 91 5 E6 f 1034 454 26 166 91 5 4 POLES 3 POLES 4 POLES 3 POLES Legend 1 Inside edge of compartment door 2 Segregation where foreseen 3 Circuit breaker M10 fixing drilling use M10 screws 4 N 1 M12 screw E1 E2 E3 or n 2 M12 screws E4 E6 for earthing included in the supply 5 Insulating or metal insulated wall E1 E2 View A ...

Страница 50: ... Doc no Model Apparatus Scale Page No 1SDH000460R0002 E4 View A E6 View A Fixed circuit breaker Basic version with horizontal rear terminals 3 POLES E4 4 POLES E4 4 POLES E4 f 3 POLES E6 4 POLES E6 4 POLES E6 f Fig 36 ...

Страница 51: ...02 E1 E2 E4 E3 E6 Fixed circuit breaker Basic version with vertical rear terminals E1 View A E2 View A E3 View A Captive M12 included in the supply E4 View A E6 View A E6 f View A Captive M12 included in the supply Captive M12 included in the supply E4 f View A Fig 36a ...

Страница 52: ...L6555 Emax 52 74 Doc no Model Apparatus Scale Page No 1SDH000460R0002 E1 E2 E3 Fixed circuit breaker Basic version with front terminals Fig 37 ...

Страница 53: ...L6555 Emax 53 74 Doc No Model Apparatus Scale Page No 1SDH000460R0002 E4 E4 E4 f E6 E6 E6 f Fixed circuit breaker Basic version with front terminals Fig 38 ...

Страница 54: ...Tightening torque of the main terminals Nm 70 Tightening torque of the earthing screw Nm 70 Compartment dimensions Compartment door drilling High resistance M12 screw Quantity per terminal PHASE NEUTRAL N 2 holes for IP54 protection Depth 3 POLES 4 POLES Fixed circuit breaker Fig 39 Holes for passing through flexible cables for mechanical interlocks ...

Страница 55: ...ith horizontal rear terminals E1 E2 View A E3 View A 3 POLES 3 POLES 4 POLES 4 POLES 4 POLES 3 POLES 4 POLES 3 POLES A B C D E F 3 poles 4 poles Fig 40 Legend 1 Inside edge of compartment door 2 Segregation where foreseen 3 Fixing fixed part Ø 10 drilling use M8 screws 4 N 1 M12 screw E1 E2 E3 or n 2 M12 screws E4 E6 for earthing included in the supply 5 Run from connected for a TEST to isolated 6...

Страница 56: ...c no Model Apparatus Scale Page No 1SDH000460R0002 Withdrawable circuit breaker Basic version with horizontal rear terminals E4 View A E6 View A 3 POLES E4 4 POLES E4 4 POLES E4 f 3 POLES E6 4 POLES E6 4 POLES E6 f Fig 41 ...

Страница 57: ...E1 E2 E4 E3 E6 Withdrawable circuit breaker Basic version with vertical rear terminals Captive M12 included in the supply E1 View A E2 View A E3 View A E4 View A E6 View A E4 f View A E6 f View A Captive M12 included in the supply Captive M12 included in the supply Fig 42 ...

Страница 58: ...L6555 Emax 58 74 Doc no Model Apparatus Scale Page No 1SDH000460R0002 E1 E2 E3 Withdrawable circuit breaker Version with front terminals Fig 43 ...

Страница 59: ...L6555 Emax 59 74 Doc No Model Apparatus Scale Page No 1SDH000460R0002 E4 E6 E6 E6 f E4 E4 f Withdrawable circuit breaker Version with front terminals Fig 44 ...

Страница 60: ...Emax 60 74 Doc no Model Apparatus Scale Page No 1SDH000460R0002 E1 E2 Fig 45 Withdrawable circuit breaker Version with flat terminals E1 View A E2 View A E3 View A E4 View A E6 View A E4 f View A E6 f View A ...

Страница 61: ...ker Tightening torque of the fixing screws 20 Nm Tightening torque of the main terminals 70 Nm Tightening torque of the earthing screw 70 Nm Compartment dimensions Compartment door drilling High resistance M12 screw Quanty per terminal PHASE NEUTRAL N 2 holes for IP54 protection Depth 3 POLES 4 POLES Fig 46 Holes for passing through flexible cables for mechanical interlocks ...

Страница 62: ...000460R0002 E1 180 180 E2 180 180 E3 234 234 E4 270 360 E4 f 360 E6 360 486 E6 f 486 Fixed version Withdrawable version Minimum distance between the circuit breaker and the switchgear wall Door drilling Compartment door mechanical lock Fig 47 A 3 POLES 4 POLES ...

Страница 63: ...elease outside the circuit breaker F1 Delayed trip fuse K51 PR121 P PR122 P PR123 P electronic release with the following protection functions L overload protection with inverse long time delay trip setting I1 S short circuit protection with inverse or definite short time delay trip setting l2 I short circuit protection with instantaneous time delay trip setting l3 G earth fault protection with in...

Страница 64: ...r YC Shunt closing release YO Shunt opening release YO1 Trip coil YO2 Second shunt opening release see note Q YR Coil to electrically reset the circuit breaker YU Undervoltage release see notes B and Q Figures Description Fig 1 Motor circuit to load the closing springs Fig 2 Circuit of shunt closing release Fig 4 Shunt opening release Fig 6 Instantaneous undervoltage release see notes B and Q Fig ...

Страница 65: ...05A 3105B no more than 15m long The shield must be earthed on the circuit breaker side and current sensor side N With releases PR122 P and PR123 P the connections to the zone selectivity inputs and outputs must be made with a two pole shielded and stranded cable type BELDEN 3105A 3105B no more than 300m long The shield must be earthed on the selectivity input side O Systems with a rated voltage gr...

Страница 66: ... contact Power isolator with automa tic breaking action Switch disconnector Control coil general symbol Instantaneous overcurrent relay Overcurrent relay with adju stable short time delay trip Galvanically separated converter Shielded cable conductors i e 3 conductors shown Conductors or stranded cables i e 3 conductors shown Connection of conductors Make contact Break contact with automatic circu...

Страница 67: ...e circuit breaker with PR121 P PR122 P or PR123 P electronic release Circuit diagram Operating status Three pole circuit breaker with PR121 P PR122 P or PR123 P electronic release Three or four pole switch disconnector Three pole circuit breaker with PR122 P or PR123 P electronic release residual current protection and U 690V ...

Страница 68: ...L6555 Emax 68 74 Doc no Model Apparatus Scale Page No 1SDH000460R0002 Motor operating mechanism opening closing and undervoltage releases Signalling contacts ...

Страница 69: ...L6555 Emax 69 74 Doc No Model Apparatus Scale Page No 1SDH000460R0002 Signalling contacts ...

Страница 70: ...L6555 Emax 70 74 Doc no Model Apparatus Scale Page No 1SDH000460R0002 W2 LOCAL BUS W2 LOCAL BUS Auxiliary circuits of the PR121 PR122 and PR123 releases PR120 V measuring module Warning see note F ...

Страница 71: ...L6555 Emax 71 74 Doc No Model Apparatus Scale Page No 1SDH000460R0002 W1 SYSTEM BUS PR120 D M communication module PR120 K signalling module ...

Страница 72: ...L6555 Emax 72 74 Doc no Model Apparatus Scale Page No 1SDH000460R0002 PR021 K signalling unit ...

Страница 73: ... ...

Страница 74: ...rgamo Italy Tel 39 035 395 111 Telefax 39 035 395 306 433 http www abb com Due to possible developments of standards as well as of materials the characteristics and dimensions speci fied in the present catalogue may only be considered binding after confirmation by ABB SACE ...

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