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Instruction Booklet IB015001EN
Effective June 2015
Preparing Recombiner for insulation/megger testing
Devices installed with control power fusing
Devices that require control power fusing can be easily damaged
beyond repair if not disconnected during the testing phase .
These devices include, but are not limited to, customer metering
equipment and communication equipment .
WARNING
DISCONNECT POWER AT SOURCE BEFORE REMOVING OR INSTALLING
FUSES. HAZARDOUS VOLTAGE WILL CAUSE SEVERE INJURY OR DEATH.
Prior to testing the Recombiner, turn off all control power devices
in the Recombiner to prevent damage to components . The control
power may be turned off by using the control power switch or by
removing the fuses . Components that use power supplies include
customer metering and certain breaker accessories, and these must
be isolated before testing .
Pre-energizing Recombiner insulation testing
Exercise extreme care to prevent the equipment from being
connected to the power source while tests are being conducted.
Prior to energizing the Recombiner, perform a Megger or DC test of
the Recombiner's insulation . With the phases isolated from ground
and the circuit breakers open, conduct electrical insulation resistance
tests from phase-to-phase, phase-to-ground . Retain results for use
to compare to results produced in the future . A form for recording
test results is provided in the appendix of this document . Prior
to testing, remove all control power fusing and connections to
products, which will be damaged in this test . See above .
WARNING
TO PREVENT DAMAGE TO CONTROL CIRCUITS WHEN MEGGERING
RECOMBINER, ISOLATE CIRCUITS FROM RECOMBINER SYSTEM BEFORE
BEGINNING THE MEGGER OPERATION. BE SURE TO RECONNECT THOSE
CIRCUITS AFTER MEGGER TESTS ARE COMPLETED.
DO NOT USE AC DIELECTRIC TESTING.
WARNING
DO NOT USE AC DIELECTRIC/MEGGER TESTING.
A test resulting in readings at or above 1 mega ohm is satisfactory .
Post-testing
After testing, and with the Recombiner de-energized, reconnect all
devices, control fusing, and disconnects removed prior to testing .
Securing the Recombiner
Reinstall all side covers, deadfront plates, doors, and trim parts on
the Recombiner using hardware supplied by the manufacturer .
Take caution that conductors are not pinched between parts when
installing the deadfront, cover plates, side sheets, and filler plates .
All parts should be aligned and secured when installed . Do not leave
holes or gaps in the deadfront construction . Clean up any debris in
and around the Recombiner .
10
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Energizing Recombiner
WARNING
HAZARDOUS VOLTAGE WILL CAUSE SEVERE INJURY OR DEATH.
WARNING
ONLY THOSE PROFESSIONALS TRAINED AND QUALIFIED ON ELECTRICAL
RECOMBINERS SHOULD INSTALL AND/OR SERVICE THIS EQUIPMENT.
Extreme hazards can exist when energizing Recombiners . Take
all precautions necessary to protect people and property when
energizing the equipment . Short circuits and ground faults may exist
as a result from inadequate installation . Short circuits and ground
faults within the Recombiner can cause catastrophic damage, injury,
and death .
1. Prior to energizing the Recombiner, turn OFF all overcurrent
devices and loads internal to the Recombiner plus downstream
equipment .
2. Verify and follow the sequence of energizing circuits and loads .
Verify phase connections .
3. Turn ON each overcurrent device .
Maintenance
It is essential to maintain the equipment in satisfactory condition .
To ensure continued quality service, a systematic maintenance
schedule is vital . Facility operation and local conditions vary to such
an extent that the schedule must be prepared to suit the conditions .
The maintenance schedule for individual devices, such as circuit
breakers and so on, should be based upon recommendations
contained in the individual instruction leaflet for each device .
Inspection and test operations should be coordinated with an overall
testing program to result in the least operating inconvenience and
system shutdowns .
DANGER
HAZARDOUS VOLTAGE WILL CAUSE SEVERE INJURY OR DEATH.
DE-ENERGIZE RECOMBINER PRIOR TO SERVICING.
WARNING
ONLY THOSE PROFESSIONALS TRAINED AND QUALIFIED ON ELECTRICAL
RECOMBINERS SHOULD INSTALL AND/OR SERVICE THIS EQUIPMENT.
Prior to performing any maintenance on the Recombiner,
first de-energize the Recombiner at the sources. Use lockout/
tagout precautions as prescribed in OSHA, NFPA 70E, and other
safety manuals.
The Recombiner should be given a thorough maintenance
check annually .
Exercise extreme care to prevent the equipment from being
connected to the power source while tests are being conducted.
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breaker recombiner
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