ECP 11-0223 Delayed Auto-Reclose (Including Check Sync) Test Form

Delayed Auto-reclose (including Check Sync) Test Form / Document Number: ECP 11-0223
Version: 3.0
Date: 30/01/2017

Delayed Auto-reclose (including Check Sync) Test Form

Substation Name
Substation Number
Circuit
DC Supply Voltage
Relay Type / Serial Number / Relay Designation in Circuit Diagram*

*Where composite units are used, the type of unit (i.e. Mesh Corner, Mesh Circuit-Breaker, etc.) should be inserted here.

Wiring Inspection / ( or n/a)
Insulation resistance (see test formECP 11-0301)
Working to the circuit diagram, close as many series contacts as possible in order to check the maximum possible amount of wiring. Note, it is important to check whether any transistorised circuits are used, and if so take appropriate precautions.
Inter relay and cubicle wiring checked to: / Circuit DiagramNumber……………………………..
Wiring Diagram Number……………………………..
Individual elements labelled in accordance with circuit diagram
Mechanical Inspection / ( or n/a)
Mechanical inspection of the various DC relays to be recorded on test form ECP 11-0305
Setting of Timing Relays (check times by stop-watch)
Relay / Relay Time Setting / Measured TimeonTest (total time) / Reset
Dead Line Charging Time / s
+ 10 seconds trip relay reset time
Check Synchronising Time / * / s
* Uses built-in check syncrelay delay / ()
Isolator ………………….Opening Timing Relay / s
Isolator ………………….Opening Timing Relay / s
Persistent Intertrip Timing Relay / s
Closing Pulse Timing Relay / s
Reclose Cancel Timing Relay / s
Voltage Memo Relay / s
Voltage Relays / ( or n/a)
Confirm that relay rating is the same as VT secondary voltage
Relay Function / Operate / Reset
Check voltage detecting relays within limits / Maximum operate 40% of nominal / () / () / ()
Maximum reset 15% of nominal / () / () / ()
Current Relays / ( or n/a)
Check correct operation of neutral current detecting relays
DC Operation / ( or n/a)
Prove to diagram that operation of all contact combinations operates, or prevents operation of, the appropriate relays, and that functional links, fuses, auxiliary switches, test switches etc. provide the designed isolation and are correctly labelled
Prove operation of DAR In/Out switching facility, where provided
Alarms correctly initiated / Local
Telecontrol
Final check from operation of Trip Relay to prove functioning auto-opening of isolators and auto-reclosing of circuit-breakers
Comments
Test Equipment
Purpose / Make/Type / Serial Number
Certification / ()
All tests have been completed satisfactorily
Contractor Commissioning Engineer (if applicable)
Organisation / Name
Date / Signature
UK Power Networks Commissioning Engineer
Name / Signature / Date