GE MVAX 12

Service Manual
R8010RB
MVAX Page 23/24
7. COMMISSIONING TEST RECORD
Trip Supply Supervision Relay
Type MVAX 11 – Type MVAX 12 – Type MVAX 21 – Type MVAX 31 – Type MVAX 91
(delete as appropriate)
Date
Station Circuit
Reay Model No Serial No
Relay type
Circuit/supply ref. V. rating range Value of ext. resistor fitted
MVAX 11 Trip/Vx1 / V N/A
MVAX 12 Trip/Vx1 / V R
EXT
1 ohms
Alarm/Vx1 / V R
EXT
1 ohms MVAX 21
Trip/Vx2 / V R
EXT
2 ohms
Alarm/Vx1 / V R
EXT
1 ohms MVAX 31/91
Trip/Vx2 / V R
EXT
2/3 ohms
Commissioning preliminaries Tick if satisfactory
Insulation tests: Satisfactory Not required
Test results: MVAX 11 relay
Test 2.7.1
Resistance across terminals 21 – 27 /
Ω
27 – 28 /
Ω
Trip supply voltage V
CB open Relay stable
CB closed Relay stable
Trip circuit open Relay operates
Contacts checked
Test results: MVAX 12 relay
*Test 2.7.2
*
Relay resistance ohms
*
Relay operates satisfactlorily at
Volts
*
Relay drops off at
Volts
Fuse removal. Alarm initiation satisfactory tick
*
Note: These tests omitted only at site engineers discretion