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P a g e
OVR-15, 27 & 38 LV cabinet Instruction Manual
T
ABLE
2:
O
PERATION
P
ROCEDURE
1.
Initial Conditions at the
time of Shipping
When shipped from factory, OVR-15, 27 & 38 recloser is having following
status;
-
Recloser interrupter contacts in OPEN (OFF) condition
-
All MCBs in LV cabinet in OFF position.
-
Service/Discharge selector switch in "DISCHARGE" position thus
capacitors are in "fully discharged" condition.
-
Battery physically disconnected from main circuit.
2.
Checks and preparations
before Powering ON.
1.
Complete installation of LV & HV Units
2.
Install other optional equipment such as surge arrestors, auxiliary
control transformer (PT), etc.
3.
Connect & properly route the control cable between LV & HV Units.
Check that the male female connections are firmly secured on both
HV and LV units
4.
Connect & route all the ground connections
5.
Ensure that the emergency manual trip (k69) handle is reset & BLOCK
CLOSE is released
6.
Connect 12V batteries physically as instructed.
3.
To Power ON the LV
Cabinet with Auxiliary
power
1.
Connect auxiliary power cable to the dedicated terminals inside the
LV Cabinet. Check wiring diagram provided in order bound drawings.
2.
Switch ON the auxiliary power from the source
3.
Check availability of auxiliary power on terminals in LV cabinet
4.
Switch ON the main MCB (AUX SUPPLY MAINS) on the inner swing
door of LV Cabinet
5.
With front door of LV cabinet opened, the cubicle Illumination lamp (if
provided & controlled by door limit switch) should glow.
6.
The auxiliary power outlet socket also gets powered up
4.
To connect Auxiliary Supply
to Charging device and
ACM.
-
Switch ON the MCB dedicated for External charger and AC circuits.
-
With auxiliary power ON, the thermostatically controlled heaters in HV
and LV cabinets may also get ON.
5.
To connect batteries to
Charging device
1.
Check and firmly connect the 2 Pin Male-Female battery connectors in
the battery circuit. Check schematic diagram supplied with the
documents for details.
2.
This will connect the two 12V batteries in series . Check the voltage
across Battery Terminals to be around 24 V
3.
Switch ON the battery MCB to connect batteries to charging device.
6.
If a radio modem is
provided or added later at
site, follow the instructions
to power it ON
If, radio modem is part of the factory supply, it would be already wired up
to the radio modem MCB. Switch ON this radio MCB to Power it ON. Check
and connect the hardwired connection between relay and radio modem.
If customer wants to connect radio modem at site, following steps are to
be followed.
1.
Check the schematic diagram provided with the documents to
understand the pins on charging device for power on radio modem. It
can support up to 7W at a dc voltage between 19 V to 29V.
