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Test Circuit Breakers Up to 6000 Amperes Frame Size with the ETI PI-6000

Posted by Protec Tech Team on

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Circuit breakers are important devices that break off current when a fault occurs. If they become faulty due to corrosion or mechanical problems, the electrical system can be damaged when an overload occurs. Technicians should regularly test for problems so the circuit breakers can be reconditioned for operation.

The contacts of circuit breakers tend to carbonize after several cycles of breaking. This is caused by the inductive kickback when the circuit breaker resets. There are circuit breakers that have an inductive kickback suppressing circuit. However, this isn't sufficient and the contacts still form carbon deposits.


The Electrical Test Instruments (ETI) PI-6000 Primary Circuit Breaker Test Set tests low-voltage, molded-case and metal-clad, direct acting AC circuit breakers, and can also be used on high current applications like ratio transformers, and heat runs.

A technologically advanced primary injection test set, the ETI PI-6000 is capable of testing circuit breakers up to 6000 amperes frame size. The ETI PI-6000 incorporates an output transformer with dual primaries to facilitate its use on power sources of 480 VAC as well as 240 and 208 VAC, and dual secondaries to provide optimal impedance matching to a wide range of breaker sizes. An internal voltage sensor automatically configures the AC control power section to be energized only when properly configured for the applied voltage.

The ETI PI-6000 features dual temperature protection, one for the output bus, and the other for the vernier Powersatatâ„¢. If either temperature exceeds a safe operating level, the interlock is asserted and the output section is de-energized. Primary catastrophic overload protection for the ETI PI-6000 is accomplished with input fuses having high interrupting current capacity.

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Topics: Rent Electrical Test Equipment, Circuit Breaker

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