VM1-T
- VACUUM CIRCUIT BREAKER
2
—
Contents
Page
1. Summary
3
1.1 General
3
1.2 Standards and specifications
3
1.2.1 Switchgear manufacture
3
1.2.2 Installation and operation
3
1.3 Operating conditions
3
1.3.1 Normal operating conditions
3
1.3.2 Special operating conditions
3
2. Structure
4
2.1 Structure of the operating mechanism
4
2.1.1 Structure of the control module
4
2.1.2 Storage capacitor
4
2.1.3 Sensor system
4
2.2 Structure of the breaker poles
5
2.3 Basic structure of the circuit breaker
on withdrawable part
5
3. Function
6
3.1 Function of the circuit breaker operating
mechanism
6
3.1.1 Magnetic actuator
6
3.1.2 Opening and closing procedure
6
3.1.3 Reclosing sequence
6
3.1.4 Circuit breaker controller
6
3.1.5 “READY” lamp
7
3.1.6 Blocking magnet -RL2
7
3.2 Ciruit diagrams for circuit breaker
withdrawable assemblies
7
3.3 Quenching principle of the vacuum
interrupter
8
3.4 Interlocks
8
3.4.1 Interlocks/protection against
maloperation (for C.B. on
withdrawable part)
8
3.4.2 Interlocks for VM1-T withdrawable
parts
8
3.4.3 Interlocks when non-original
withdrawable assemblies are used
8
4. Despatch and storage
9
4.1 Condition on delivery
9
4.2 Packaging
9
4.3 Transport
9
4.4 Delivery
9
4.5 Intermediate storage
9
5. Installation and mounting of the breaker
10
6. Commissioning / Operation
11
6.1 Note on safety at work
11
6.2 Preparatory activities
11
6.3 Earthing
11
6.4 Movement of the withdrawable breaker
part
12
6.4.1 Manual insertion from the test/
disconnected position into the
service position
12
6.4.2 Manual withdrawal from the service
position into the test/disconnected
position
12
6.4.3 Motor-driven movement of the
withdrawable part
12
6.4.4 Withdrawal from the test/disconnected
position onto the service truck
12
6.4.5 Insertion from the service truck into
the test/disconnected position
13
6.5 Operation of the circuit breaker
13
Page
7. Maintenance
14
7.1 General
14
7.2 Inspection and functional testing
14
7.2.1 Circuit breaker in general
14
7.2.2 Magnetic actuator operating
mechanism
15
7.2.3 Withdrawable part
15
7.3 Servicing
15
7.3.1 Circuit breaker in general
15
7.3.2 Magnetic actuator operating
mechanism
15
7.3.3 Breaker pole
16
7.4 Repair
16
7.4.1 Repair of surface damage
16
7.4.2 Replacement of components
16
7.5 Tests on withdrawable parts with
VM1-T type circuit breakers
17
7.5.1 Motor-driven withdrawable parts
17
7.5.2 Checking the auxiliary switch settings
on withdrawable parts
17
7.5.3 Checking the direction of rotation
of the travel motors on motor-driven
withdrawable parts
18
7.5.4 Checking of interlock conditions
18
7.6 Spare parts, auxiliary materials, lubricants 18
7.6.1 Spare parts
18
7.6.2 Auxiliary materials and lubricants
19
8. Application of the X-ray regulations
20
9. Figures
21
10. Technical data
30
10.1 Technical data, general
30
10.1.1 Technical data Control electronics
30
10.1.2 Technical data AC/DC converter
30
10.1.3 Permissible number of vacuum
interrupter operating cycles
31
10.2 Technical data
Circuit breakers for fixed installation
33
10.2.1 Performance data and weights
33
10.2.2 Dimensions
34
10.3 Technical data
Circuit breakers on withdrawable part
37
10.3.1 Performance data and weights
37
10.3.2 Dimensional drawings
38
10.3.3 Wiring diagrams for C.B. on
withdrawable part
40
11. Comparison of designations to IEC 61346-1 /
61346-2, IEC 81346-1 / 81346-2 and VDE-DIN
40719 Part 2
42
Содержание VM1-T
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