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Q. What is a new surplus part?
A new surplus part has been purchased through sources other than the manufacturer’s
normal distribution network. The product is not covered by the original manufacturer’s
warranty. It is at the sole discretion of the seller as to what testing is performed
and what warranties are granted on “ New Surplus” Products.
Q. What are reconditioned parts?
The term “reconditioning” is defined as “the process of returning electrical
equipment to safe operating condition as recommended by the manufacturer’s instructions
or industrial standards and tested by recognized industrial test standards.” Any
parts replaced under this guideline should be the original manufacturer’s recommended
replacement parts or parts that have been proven for the purpose.
Q. What does it mean to retrofit a breaker?
Retrofitting a breaker is taking an older breaker and its trip device and updating
it to a new solid state electronic trip device. This captures important data that
can tell you why your breaker tripped. This is valuable information in helping
you solve your electrical distribution problem.
Q. What does it mean to rebuild a breaker?
When goods are sold remanufactured, the seller guarantees that all components
have been completely disassembled, remanufactured, and tested to original OEM
specifications (as available). All goods sold remanufactured are tested to industry
standards, which include ANSI C37, NETA, NEMA, PEARL and OEM (results are provided).
Seller guarantees all remanufactured goods for a period of one year from the date
of shipment under competent supervision and normal load and usage conditions.
Q. What does testing of the breaker mean?
Visual and Mechanical Inspection:
- Inspect physical and mechanical.
- Inspect anchorage and alignment.
- Prior to cleaning the unit, perform as-found tests if required.
- Clean the unit.
- Operate the circuit breaker to insure smooth operation.
- Inspect bolted electrical connections for high resistance using a low resistance
ohmmeter.
- Inspect the operating mechanism, contacts, and arc chutes in unsealed units.
- Perform adjustments for final setting in accordance with coordination study provided
by the end user.
- Perform as-left test.
- Reset all trip logs and indicators.
Electrical Test:
- Perform resistance measurements through bolted connections with a low resistance
ohmmeter, if applicable.
- Perform insulation-resistance tests for one minute on each pole, phase-to-phase
and phase-to-ground with the circuit breaker closed, and across each open pole.
- Perform a contact/pole-resistance test.
- Perform insulation-resistance tests on all control wiring with respect to ground.
- Determine long time pickup and delay by primary current injection.
- Determine short time pickup and delay by primary current injection.
- Determine ground-fault pickup delay by primary injection.
- Determine instantaneous pickup current by primary injection.
- Test functions of the trip unit by means of secondary injection.
- Perform minimum pickup voltage test on shunt trip and close coils.
- Verify correct operation of auxiliary features such as trip and pickup indicators,
zone interlocking, and trip unit battery condition.
- Verify correct operation of features such as electrical close and trip operation,
trip free, and antipump function. Reset all trip logs and indicators.
Q. How long is the guarantee on the purchased equipment?
All equipment is guaranteed from one year after the date of purchase.
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