Specification for GE Magne-Blast Type AM Circuit Breakers
Specification for GE Magne-Blast Type AM Circuit Breakers
Specification for GE Magne-Blast Type AM Circuit Breakers
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<strong>Specification</strong> <strong>for</strong><strong>GE</strong> <strong>Magne</strong>-<strong>Blast</strong> <strong>Type</strong> <strong>AM</strong><strong>Circuit</strong> <strong>Breakers</strong>Powell Apparatus Service8550 Mosley Dr.Houston, TX 77075(713) 944-6900 - p(713) 948-4569 - fPrimary and secondary contacts shall be disconnected in the test position. ALL connectionsshall be broken when the breaker is withdrawn. A breaker mounted semaphore deviceshall be furnished to indicate the “charge-discharged” state of the breaker closing springs.Another breaker mounted semaphore device shall be furnished to indicate the breakercontact “open-closed” position. A breaker mounted operations counter shall also befurnished.An easily accessible mechanical contact wear indicating device shall be supplied with allinterrupters. The device shall be factory set.<strong>Circuit</strong> breakers shall be equipped with mechanism operated auxiliary contacts <strong>for</strong>interlocking with control circuits, indicating lights auxiliary relays etc. Breaker mounted,normally open and normally closed mechanism operated auxiliary contacts shall be providedto match as a minimum, the arrangement and quantities found on the existing circuitbreakers. In addition new circuit breaker operating mechanisms shall have sufficientcapacity to actuate the existing stationary auxiliary and truck-operated cell contacts withoutdegrading the operating per<strong>for</strong>mance of the interrupter. Stationary auxiliary contacts shallbe operated by the breaker only in the operating position.The circuit breaker will be equipped with an actuating lever <strong>for</strong> the MOC operation. If thecubicle is equipped with an MOC assembly, the vendor shall supply a new roller bearingoperating lever <strong>for</strong> the cubicle linkage. The breaker should operate this assembly andexisting MOC switch with no additional modifications.All primary current conductors between circuit breaker components shall be constructed ofcopper bar. All connection surfaces shall be silver-plated.<strong>Circuit</strong> breakers shall operate without damage or frame distortion during testing whileresting on their rollers.The circuit breakers shall be of new construction; they shall not contain any parts which areused, re-manufactured, retrofitted or reconditioned.WiringTypical breaker control schematics will be provided by purchaser with the PurchaseOrder. Seller shall functionally replicate the control wiring, including auxiliary contactarrangement.Wiring shall be neatly arranged and clamped securely to panels to prevent movement andbreakage.©2004 Powell Apparatus Service • All rights reserved.
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