Medium voltage productsVM1/A/PInstallation and service instructionsANSI: ... 15 kV; ... 1200 A; ... 31.5 kAFor your safety! 11. Foreword 21.1. Introdution 21.2. Environmental protection programme 21.3. Drawout 31.4. Information on this booklet 31.5. Principle of extinction of the vacuum interrupter 31.6. Application of the X-ray emission Standards 32. Introduction and safe practices 42.1. Introduction 42.2. Safe practices 42.3. Standard and regulations 52.4. Service conditions 53. Reveiving, handling, and storage 63.1. Receiving and checking 63.2. Handling 73.3. Storage 84. Insertion and removal, putting into service 94.1. Insertion and removal od withdrawablecircuit-breaker 94.2. Putting into service 105. Installation 145.1. General 145.2. Trip curves 145.3. Interlocks/protection against malfunction 155.4. Racking 165.5. Disconnect through connect 165.6. Connect through disconnect 165.7. Connect through disconnect emergency rack out 175.8. Installation of withdrawable circuit-breakers 176. Description 186.1. Basic structure of the withdrawable circuit-breaker 186.2. Circuit-breaker structure of the circuit-breaker 186.3. Drive structure 206.4. Structure of the control module 216.5. General characteristics of withdrawablecircuit-breakers for PowerCube modules 226.6. Types of withdrawable circuit-breakers availablefor PowerCube modules 236.7. Mechanism and electrical operation 236.8. Control scheme 246.9. Standard fittings 256.10. Optional accessories 267. Operation 287.1. Circuit-breaker function Magnetic actuator 287.2. Circuit-breaker control 287.3. Opening and closing procedure 297.4. Autoreclosing sequence 297.5. Control module 297.6. Functions of the control module 297.7. “READY” signalling 307.8. Truck locking magnet (compulsory device) 307.9. Circuit-breaker control card 317.10. Characteristics of the control module contactswithout potential 328. Maintenance 338.1. General 338.2. Maintenance on VM1/A/P circuit-breakers 338.3. Operating life 348.4. Procedure for discharging the capacitor/s 348.5. Mechanism and transmission system 348.6. Inspections and functional tests interruptiondevice in general 358.7. Servicing 358.8. Circuit-breaker pole 368.9. Repairs 368.10. Control wiring 378.11. Primary circuit assembly: (Pole) 379. Maintenance 389.1. Vacuum interrupters 3810. Spare parts and accessories 3910.1. List of spare parts 3911. Product quality and environmental protection 4012. Overall dimensions 4113. Electric circuit diagram 42