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Complete Breaker Services:
No matter what brand of OCB, Air or SF6 Breaker
you own POWER TECH can repair or service it. Breakers like
any other piece of equipment needs a regular preventive maintenance
service. Power outages resulting from transformer failure can be
costly. Outdoor Breakers need continuous maintenance
due to use and the interruption of faults. Explosive gases can also
build up in OCBs which can have disastrous results. Don't let your
expensive electrical equipment deteriorate because of neglect.
Problems can be found and fixed with regular inspection and
servicing. Below is a summary of what POWER TECH can do for
you. |
Circuit Breakers
Oil:
A. Visual and Mechanical Inspection
 | Inspect for physical damage. Compare nameplate data. |
 | Inspect anchorage, alignment and grounding. |
 | Perform all mechanical operation and contact alignment tests
on both the circuit breaker and it's operating mechanism in
accordance with manufacturer's instruction. |
 | Check tightness of bolted bus joints. |
B. Electrical Test
 | Measure contact resistance. |
 | Perform breaker travel time test is unit is properly equipped
for this test. |
 | Sample insulating liquid. |
 | Perform voltage tests on trip and close coils. |
 | Circuit breaker shall be tripped by operation or each
protective device. |
 | Perform insulation resistance test on each pole to ground. |
 | Perform D.C. over potential test on each pole to ground and
pole to pole. |
 | Perform power factor tests on each pole and each bushing
equipped with power factor taps. Tank loss index shall be determined. |
Circuit breakers - Air, Vacuum & SF6:
A. Visual and Mechanical Inspection
 | Inspect for physical damage. Compare nameplate data. |
 | Inspect anchorage, alignment and grounding. |
 | Perform all mechanical operation and contact alignment tests
on both the circuit breaker and it's operating mechanism in
accordance with manufacturer's instruction. |
 | Check tightness of bolted bus joints. |
 | Check alignment for fit in cubicle. |
B. Electrical Test
 | Measure contact resistance. |
 | Perform minimum pickup voltage tests on trip and close coils. |
 | Circuit breaker shall be tripped by operation or each
protective device. |
 | Perform insulation resistance test on each pole to ground,
pole to pole and across open pole. |
 | Perform over potential tests, or power factor test with
breaker in the open and closed position. All arc chutes shall be
tested for watts loss. |
C. Vacuum and SF6 Retrofit
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POWER TECH offers a complete line of OCB,
AIR and SF6 Breaker
services. An equipped Inspection Service Vehicle operated by
an experienced POWER TECH Technician is prepared to
provide advisory technical services, perform tests and recommend
repair all on site. Contact us with regarding your specific Breaker needs: info@ptsbtr.com.
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Copyright 2004 - Power Technical Services - All
Rights Reserved |
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