LIST O F FIGUR ES
IV
Figure 49: Measurements view, injected phase 1................................................................................ 35
Figure 50: Blocking conditions of the circuit breaker truck in PCM600 ........................................ 36
Figure 51: Single line diagram, the circuit breaker is open and in the test position ................... 36
Figure 52: Single line diagram, the earthing switch shutter is open ...............................................37
Figure 53: Single line diagram, the earthing switch shutter is closed ............................................37
Figure 54: Single line diagram, the circuit breaker is in the intermediate position .................... 38
Figure 55: Blocking conditions of the circuit breaker in PCM600 ................................................... 39
Figure 56: Single line diagram, the circuit breaker is closed and in the test position................ 39
Figure 57: Single line diagram, the circuit breaker is open and in the test position...................40
Figure 58: Single line diagram, the circuit breaker is in the intermediate position ....................40
Figure 59: Single line diagram, the circuit breaker is closed and in the service position ...........41
Figure 60: Blocking conditions of the earthing switch in PCM600................................................. 42
Figure 61: Single line diagram, the circuit breaker is open and in the test position ................... 42
Figure 62: Single line diagram, the circuit breaker is in the intermediate position .................... 42
Figure 63: Single line diagram, the earthing switch is closed.......................................................... 43
Figure 64: Example of Process bus application in medium voltage switchgear..........................44
Figure 65: Logic scheme of the busbar earthing truck interlock .................................................... 45
Figure 66: Logic scheme of the busbar earthing switch interlock.................................................. 45
Figure 67: Single line diagram, the circuit breaker is in the test position ..................................... 46
Figure 68: Single line diagram, the circuit breaker is in the intermediate position .................... 46
Figure 69: Logic scheme of trucks interlock by the busbar earthing truck .................................. 47
Figure 70: Logic scheme of trucks interlock by the busbar earthing switch................................ 47
Figure 71: Single line diagram, the circuit breaker is in the test position...................................... 48
Figure 72: Logic scheme of CBFP............................................................................................................ 49
Figure 73: Single line diagram, the circuit breaker in the service position.................................... 49
Figure 74: Single line diagram circuit, the circuit breaker is closed and in the service position
........................................................................................................................................................................ 50
Figure 75: Entering test mode................................................................................................................. 50
Figure 76: Activating backup trip.............................................................................................................51
Figure 77: Deactivating backup trip ........................................................................................................51
Figure 78: Entering test mode................................................................................................................. 52
Figure 79: Logic scheme of the Logic busbar protection.................................................................. 53
Figure 80: Single line diagram, the circuit breaker is in the service position............................... 53
Figure 81: Entering test mode ................................................................................................................. 54
Figure 82: Activating START signal ......................................................................................................... 54
Figure 83: Activating blocking mode ..................................................................................................... 55
Figure 84: Deactivating START signal .................................................................................................... 55
Figure 85: Deactivating blocking mode................................................................................................. 56
Figure 86: Entering test mode................................................................................................................. 56
Figure 87: Logic scheme of Ith limiters trip.......................................................................................... 57
Figure 88: Single line diagram, the circuit breaker is in the service position ............................... 58
Figure 89: Single line diagram, the circuit breaker is closed and in the service position .......... 58
Figure 90: Logic scheme of ARC trip...................................................................................................... 59
Figure 91: Single line diagram, the circuit breaker is in the service position................................ 59
Figure 92: Entering test mode.................................................................................................................60
Figure 93: Single line diagram, the circuit breaker is closed and in the service position ..........60
Figure 94: Activating OPERATE signal ....................................................................................................61
Figure 95: Deactivating OPERATE signal................................................................................................61
Figure 96: Entering test mode................................................................................................................. 62
Figure 97: Changing correction factors for amplitude ...................................................................... 63
Figure 98: Changing correction factors for angle............................................................................... 63
Figure 99: ESSAILEC® RJ45 test block (the plug, the lid and the socket)....................................... 64
Figure 100: Low Voltage Compartment door of UniGear panel with ESSAILEC® RJ45 test
blocks ............................................................................................................................................................ 64