— M E D I U M V O LTA G E P R O D U C T S Vacuum circuit breaker Table of contents Summary Structure Function Despatch and storage Installation and mounting of the breaker Commissioning/Operation Maintenance Application of the X-ray regulations Figures 10 Technical data...
VM1 - INSTRUCTION MANUAL BA 504/05 E — For your safety – always! That’s why our instruction manual begins with these recommendations: • Only install switchgear and/or switchboards in enclosed rooms suitable for electrical equipment. • Ensure that installation, operation and maintenance are carried out by specialist electricians only.
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2.3 Basic structure of the circuit breaker on 7.4.1 Repair of surface damage withdrawable part 7.4.2 Replacement of components 3 Function 7.5 Tests on withdrawable parts with VM1 3.1 Function of the circuit breaker operating type circuit breakers mechanism 7.5.1 Checking the auxiliary switch settings 3.1.1 Magnetic actuator...
- the average value of the relative from maintenance. humidity, over a period of one The vacuum circuit breakers of type VM1 in column month, does not exceed design can be supplied both on withdrawable - the average value of the water...
M E D I U M V O LTA G E P R O D U C T S — 2. Structure Structure of the operating 2.1.2 Storage capacitor (Figures 9/14, 9/16b and 9/26) mechanism (Figures 9/11 to The energy for operation of the circuit breaker is 9/14 and 9/26) stored electrically in a capacitor.
VM1 - INSTRUCTION MANUAL BA 504/05 E — 2. Structure Structure of the breaker poles Basic structure of the circuit breaker on withdrawable part (Figures 9/7, 9/9 and 9/12) (Figures 9/7 to 9/10, 9/17 and The poles in column design are mounted on the...
All the conditions for control of the opening and time can additionally be set. closing commands to the magnetic actuator are If no voltage is applied to -MU, the VM1 cannot be defined in a microprocessor: closed normally. However a closing support • Supply voltage must be applied to the AC/DC...
Blocking magnet -RL2 (Figure 9/28) deactivated if it is not required. If the function of Blocking magnet -RL2 fitted to: -MU is deactivated, the VM1 can be opened and • manually movable VM1 withdrawable parts, closed without any voltage being applied.
VM1 - INSTRUCTION MANUAL BA 504/05 E — 4. Despatch and storage Condition on delivery Intermediate storage • The factory-assembled switching devices are Conditions for optimum intermediate storage: checked at the works for completeness of the 1. Devices with basic packaging or unpacked: equipment installed and simultaneously subjected • A dry and well ventilated storeroom with...
M E D I U M V O LTA G E P R O D U C T S 11 11 — 5. Installation and mounting of the breaker Careful and professional installation of the Recommended switchgear is one of the fundamental conditions tightening torque of trouble-free circuit breaker operation.
(particularly on the set out in section 1.2. insulating materials) as described in section 7.3.1. • Before a VM1 on a withdrawable part • Remove lifting lugs T (Figures 10/1 to 10/7). is moved it must be verified that the • Check the primary and secondary connections and...
M E D I U M V O LTA G E P R O D U C T S Earthing • Observe the position indicator in the front door. • Remove hand crank 38 by first pressing slightly For the fixed version circuit breaker, carry out against the hand crank and then remove.
VM1 - INSTRUCTION MANUAL BA 504/05 E — 6. Commissioning / Operation Circuit breaker operation c) On power failure and after expiry of the (Figures 9/17 to 9/21) times stated under 3a), the circuit breaker remains in its current position. If an...
• if the capacitor is kept on stock or warehouse for The typical life expectancy of a VM1 vacuum circuit more than 2 years without power supply feeding, breaker is determined by: it is required to replace the capacitor.
VM1 - INSTRUCTION MANUAL BA 504/05 E — 7. Maintenance Where appropriate in individual cases, further Scope of functional testing: information can be found in the technical • Connect the supply voltage. documentation appurtenant to the switchgear • Perform several switching operations under no system (e.g.
39, and slide it forwards onto the • Open the VM1 circuit breaker. thicker part of the shank. • Earth all poles of the VM1 circuit breaker on one - Fit arbor 39 onto the relevant contact arm 34, side.
VM1 - INSTRUCTION MANUAL BA 504/05 E — 7. Maintenance Tests on withdrawable parts 7.4.2 Replacement of components • Only remove and reassemble circuit breaker parts with VM1 type circuit breakers and accessories when the breaker has been switched off and the working area is to be isolated The following conditions are to be checked to test and secured against reclosing.
Setting instructions are to be requested separately. Check this condition as follows: - It must not be possible to close the circuit- Withdrawable assembly of VM1: breaker with the withdrawable part in any • Manually movable withdrawable assembly : position between the test/ disconnected See Drawing GCE 7003570, Sheets 1 and 2, for position and the service position.
VM1 - INSTRUCTION MANUAL BA 504/05 E — 7. Maintenance 7.6.2 Auxiliary materials and lubricants - Cold cleanser 716 GCE0007706P0100 (for use with conductive Designation Part no. components, components (order code) of insulating materials and Lubricant: in case of serious grime!)
M E D I U M V O LTA G E P R O D U C T S 21 21 — 8. Application of the X-ray regulations One of the physical properties of vacuum insulation is the possibility of X-ray emissions when the contact gap is open.
VM1 - INSTRUCTION MANUAL BA 504/05 E — 9. Figures Figure 9/1: Vacuum circuit breaker, type VM1, high-current, for fixed Figure 9/2: Vacuum circuit breaker, type VM1, high-current, for fixed installation, 12 kV, 1600...2000 A, 40 kA, mechanism side installation, 12 kV, 1600...2000 A, 40 kA, pole side Figure 9/3: Vacuum circuit breaker, type VM1, on withdrawable part, 24 kV, 1250 A, ≤ 25...
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M E D I U M V O LTA G E P R O D U C T S Figure 9/5: Vacuum circuit breaker type VM1, high current,on wit drawable Figure 9/6: Vacuum circuit breaker type VM1, high current, on withdrawable part, 12 kV, part, 12 kV, 3150 A, 50 kA, mechanism side 3150 A, 50 kA, pole side Figure 9/7: Vacuum circuit breaker, type VM1, on withdrawable part, 24 kV, 1250 A, ≤ 25...
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VM1 - INSTRUCTION MANUAL BA 504/05 E — 9. Figures Figure 9/9: Vacuum circuit breaker, type VM1, on withdrawable part, 12 kV, 630 A, Figure 9/10: Withdrawable part with built-in auxiliary switch ≤ 31.5 kA, pole side (use in ZS8.4 only) -BT2 Test position indicator Breaker pole -BT1...
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M E D I U M V O LTA G E P R O D U C T S Figure 9/12: Sectional view of a vacuum circuit breaker type VM1, Figure 9/13: Position indicator schematic diagram Mechanical position indicator Mechanism enclosure Sensor -B0A for ”circuit breaker OFF”...
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VM1 - INSTRUCTION MANUAL BA 504/05 E — 9. Figures Figure 9/14: Block diagram of the magnetic actuator mechanism ”READY” lamp (LED) ON push-button OFF push-button Actuator Sensor for ”circuit breaker OFF” signal Sensor for ”circuit breaker ON” signal Storage capacitor...
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Closing support for -MU position signal • ON button (3) On Off If the DIP-switch is in ON position, the VM1 with activated (sensor) • OFF button (4) undervoltage release -MU can be closed even if no voltage • “Ready” lamp (2) is applied to -MU.
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VM1 - INSTRUCTION MANUAL BA 504/05 E — 9. Figures In case the closing lock-out -RL1 is being used for an interlocking with an external voltage, this internal con- nection to 80 V has to be removed Circuit-breaker controller Circuit-breaker...
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Spring to secure the opening capacity Figure 9/21: Moving the circuit breaker on a withdrawable part between Figure 9/19: Emergency manual switch-off of a VM1 circuit breaker the test/disconnected position and the service position; with the panel door closed, example.
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VM1 - INSTRUCTION MANUAL BA 504/05 E — 9. Figures Figure 9/22: Withdrawal of the withdrawable part with circuit breaker Figure 9/23: Sevice truck approaching the panel. Align the guide pins onto the service truck. on the load surface with the height adjusters, position the - Service truck engaged with the panel truck at the panel and allow the catch to engage.
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M E D I U M V O LTA G E P R O D U C T S 31 31 Figure 9/26: View of the operating mechanism of the VM1 circuit breaker with auxiliary equip- ment, front plate removed. Mechanical operating cycle counter...
• Response range at inputs -MO1, -MC and -MO2, • Power pack A: optionally - ABB Stotz m.c.b.: S 282 UC-K, 1.6 A • 24 V –15% ...60 V +15% AC • Power pack B: 24 V –30% ...60 V +15% DC - ABB Stotz m.c.b.: S 282 UC-K, 1.0 A...
M E D I U M V O LTA G E P R O D U C T S 10.1.3 Permissible number of vacuum interrupter operating cycles 10.1.3 Permissible number of vacuum interrupter operating cycles 10.1.3 Permissible number of vacuum interrupter operating cycles 10 5 10 5 10 5...
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VM1 - INSTRUCTION MANUAL BA 504/05 E — 10. Technical data 10 5 10 5 1250 A 2500 A 1250 A 2500 A 1600 A 1600 A 3150 A 3150 A 2000 A 2000 A 10 3 10 3 10 2...
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VM1 - INSTRUCTION MANUAL BA 504/05 E — 10. Technical data Breaker Rated Rated Rated Short- Rated Rated Pole Weight ( Permissible Dimensional type voltage current short- circuit short- short- centres number drawings circuit- breaking circuit circuit of vacuum breaking...
See table page 35 and 36 (column Dimensional drawings) 12 / 17.5 kV, 1250 / 1600 A, 40 kA Figure 10/1: Dimensional drawing of circuit breaker type VM1 ( ) See table page 35 and 36 (column Dimensional drawings) - 12 / 17.5 kV, 1250 / 1600 A, 40 kA Instruction manual 504/05 | VM1 Vacuum circuit-breaker 37 BA 504-05 GB_29102012.indd 37...
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695 700 75 0 545 345 Figure 10/2: Dimensional drawing of circuit breaker type VM1 ( ) Breakers with rated currents 2500 / 3150 A are fitted with a heat sink BA 504-05 GB_29102012.indd 38 - 12 / 17.5 kV, … 4000 A ( ) , … 40 kA ) Breakers with fan cooling 30.10.12 13:45...
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Dimensional drawing of circuit-breaker type VM1 Heat sink for ≥ 3150 A only. Breakers for 4000 A additionally with fan cooling Figure 10/3: Dimensional drawing of circuit breaker type VM1 ( ) Heat sink for ≥ 3150 A only. Breakers for 4000 A additionally with fan See table page 35 and 36 (column Dimensional drawings) - 12 kV, ...2500 A, 50 kA...
VM1 - INSTRUCTION MANUAL BA 504/05 E — 10. Technical data 10.3 Technical data Circuit breakers on withdrawable part ( 10.3.1 Performance data and weights Rated voltage 17.5 Rated frequency 50/60 50/60 50/60 Rated lightning impulse withstand voltage 75 12 5...
Remove the lifting lugs on both sides before commissioning - Use in UniGear-type ZS1 and Powerbloc Figure 10/4: Vacuum circuit breaker on withdrawable part, type VM1 ( Not fitted on withdrawable parts for Powerbloc ) Only fitted on withdrawable parts for SACE - 12 / 17.5 kV, ...1600 A, 40 kA...
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Vacuum circuit-breaker on withdrawable part, type VM1 Only fitted on withdrawable parts for SACE Figure 10/5: Vacuum circuit breaker on withdrawable part, type VM1 ( ) Only fitted on withdrawable parts for SACE Heat sink only fitted for rated currents of 2500 A and above...
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Powerbloc 14 9 691 ±2 688±2 Powerbloc Figure 10/6: Vacuum circuit breaker on withdrawable part, type VM1 ( ) Only fitted on withdrawable parts for SACE up to 2500 A UniGear-type ZS1 691±2 688±2 - Use in UniGear-type ZS1 and Powerbloc...
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M E D I U M V O LTA G E P R O D U C T S Rail Front edge of bar Figure 10/7: Vacuum circuit breaker on withdrawable part, type VM1 ( ) Only fitted on withdrawable parts for SACE up to 2500 A - Use in UniGear-type ZS1 and Powerbloc ) Remove the lifting lugs on both sides before commissioning - …12 kV, ...1600 A, 50 kA...
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1 250 A, ...25 kA 1 250 A, ...20 kA 25 0 Figure 10/8: Vacuum circuit breaker on withdrawable part, type VM1 ( ) See table page 40 and 41 (column Dimensional drawings) - Use in ZS8.4 - 12 kV, ...1250 A, ...25 kA - 17.5 kV, ...1250 A, ...20 kA...
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*) Rail **) Front edge of bar Stroke 8 -11mm Figure 10/9: Vacuum circuit breaker on withdrawable part, type VM1 ( ) See table page 40 and 41 (column Dimensional drawings) - Use in ZS8.4, with or without tee-off partitioning...
The wiring diagrams comprise the basic com ponents and all fur- relevant switchgear list, and the euquipment fitted in ea ther equipment options for the various VM1 types. The scope of ual case can be found in the order documentation.
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) Connection exists when auxiliary switches -BB1 and -BB3 are not used ) Full version Figure 10/12: Wiring diagram for VM1 vacuum circuit-break ally movable withdrawable assembly. Figure 10/11: Wiring diagramm for VM1 vacuum circuit breaker on manually movable with- - Maximum of equipment drawable assembly.