OVR
–
Three phase mechanically ganged reclosers
Operator’s
quick reference guide for OVR-15, OVR-27 & OVR-38
Page
5
of
6
E.
Trouble shooting
(Please read this table in conjunction with the approved/ as built wiring diagram)
Sr.
No.
Trouble /
Malfunction
Indication /
Observation
Possible Causes
Remedy / Trouble Shooting
No voltage across
terminals 201-202 in
LV Unit
-
External Auxiliary Power
connection to LV Unit is
loosely connected
-
External Auxiliary Power may
be OFF
-
Properly connect the Auxiliary
Power supply cable to the plug
inside LV Unit
-
Check & correct the status of
the external power supply.
1
Auxiliary Power
failure
Voltage is present
across terminals 201-
202 in LV unit but
cubicle light & aux.
power outlet,
heater(s), do not
have power.
MCB for Auxiliary Supply Mains is
OFF
Switch ON the MCB for Auxiliary
Supply Mains
Individual MCBs for cubicle light
& aux. power outlet, heater(s) are
OFF
Switch ON the MCBs for cubicle
light & aux. power outlet ,
heater(s)
2
ACU/RER615
does not power
up even after
main Aux. MCB
is ON & Aux
Supply is
available for
more than 60s
No LEDs
(RED/GREEN)
glowing on ACU
MCB for ACU is OFF
Switch ON the MCB for ACU (
MCBs D10-31 & D10-24)
No LEDs on relay HMI
glow and LCD screen
of RER615 does not
light up
One or more blinking
RED LED on ACU
Manual Lock out activated.
Emergency manual trip (k69)
handle has been operated and is
locked in operated/tripped
position.
Reset the emergency manual trip
handle & release the manual lock
out
Control cable between LV & HV
units loose / not connected
Connect and secure the control
cable between HV & LV units
3
Recloser (AR) is
NOT ready ;
OPEN & CLOSE
operations not
possible from
RER615 or from
remote
AR Ready LED on
Relay glowing RED
Battery temperature sensor
connection to ACU is loose/not
connected
Check and secure connection of
battery temperature sensor to
ACU through male - female
connectors provided.
Capacitor not sufficiently
charged
-
Put selector switch in
DISCHARGE position
-
Allow capacitors to fully
discharge (follow warning label
text guidelines)
-
Check capacitor connections to
ACU for loose contact and
correct polarity as per wiring
diagram
-
Check the capacitor health;
replace capacitors if needed
Wrong recloser
ON/OFF status on
SLD of RER615 HMI
The wiring of the 52a/b aux. limit
switch may be loose or wrong
(52a/b aux. limit switch is
mounted in HV unit)
Check, secure and correct the
wiring of 52a/b aux. limit switch
as per approved /as built
schematic
