Open & Close - ABB OVR-15 Operator's Quick Reference Manual

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