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OVR-15, 27 & 38 LV cabinet Instruction Manual
Caution
C
ONNECTING THE
A
UXILIARY
S
UPPLY
The control cabinet requires external two wire aux supply. Please refer the approved/as built drawings
for the aux. supply voltage/frequency applicable to your recloser.
If agreed during ordering stage, an optional auxiliary supply cable can be supplied with the recloser. It is
a black colored, jacketed, 2x1.5 Sq.mm auxiliary power cable with a gland and nut on one end to bring it
inside the LV cabinet.
If the auxiliary control power is desired to be obtained from a pole mounted VT (PT), then the power
rating of VT (PT) should be minimum 250
VA . Unless specified such VT (PT) will not be in ABB’s scope of
supply.
-
Before connecting the external auxiliary power source to the LV cabinet, make sure
that the SERVICE/DISCHARGE selector switch in the LV cabinet is in DISCHARGE
mode.
-
Follow instructions on the warning label provided on the inner swing panel (door).
F
INAL INSPECTIONS BEFORE ENERGIZING
The LV unit should be tested for mechanical and electrical operation before it is energized in the power
system. It is to be noted that the recloser is shipped in OPEN (OFF) condition from the factory.
Do not ground either side of the battery or attach ground to the terminals of the
actuator operating coils. This will result in permanent damage to the unit.
When the LV cabinet has been installed completely with all mechanical and electrical connections
completed, conduct following mandatory inspection before energizing the recloser on the main lines;
1.
Ensure the LV cabinet is properly levelled and securely anchored.
2.
Make a
fi
nal check of tightness of all hardware.
3.
Securely tighten terminals and ground connections.
4.
Check control cable is properly connected, routed and secured.
5.
Ensure both the HV & LV cabinets are grounded as mentioned in this manual.
Caution
