GE DTR GEK-106305A, Instruction Manual

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7. ACCEPTANCE TESTS
64 DTR Digital Tap Changer Controller GE—106305A
7.8 VERIFICATION OF OUTPUTS, AND DTR OPERATION
The intention of these instructions is to verify the correct operation of DTR, as well as the operation of all its output
contacts. These instructions are based on the standard DTR configuration, as per the connections diagram
189C4160F1. Figure 1.
For different configurations, please verify that the described contact is associated to an output.
REFERENCE FUNCTION REFERENCE FUNCTION
S1 TAP-UP COMMAND S12 OVERCURRENT
S2 TAP-DOWN COMMAND S13 LOCAL
S3 AUTOMATIC S14 REMOTE
S4 MANUAL S15 SUCCESSIVE OPER.
S5 STOPPED S16 EXCESSIVE OPER.
S6 SYSTEM READY S17 TAP BCD 1
S7 STOP COMMAND S18 TAP BCD 2
S8 COMMAND NOT EXECUTED S19 TAP BCD 3
S9 IRREGULAR TAP CHANGE S20 TAP BCD 4
S10 UNDERVOLTAGE S21 TAP BCD 5
S11 OVERVOLTAGE S22 TAP BCD 6
7.8.1 VERIFICATION OF ALARM CONTACTS; LOCAL AND REMOTE:
•
With the relay disconnected, check that S6 is active and it becomes inactive when feeding the unit.
•
Check the front switch in LOCAL mode and check that: S13 is active and S14 is inactive
•
Check the front switch in REMOTE mode and check that: S14 is active and S13 is inactive