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Secondary Injection Test

Reliable Secondary Injection Testing with Utility Relay Co. Test Sets

For checking circuit breaker and protective relay systems, a secondary injection test set is the main piece of electrical test equipment to use. It differs from the standard primary injection testing method in that there is no current flowing and contacts remain closed during the testing process.

Read More »Reliable Secondary Injection Testing with Utility Relay Co. Test Sets

Rent the Siemens PTS-5 Secondary Injection Test Set Today from Protec

Siemens_PTS-5The Siemens PTS-5 Secondary Injection Test Set is designed for performing secondary injection testing of the Static Trip III (STIII) overcurrent tripping system utilized on the RL breaker. The system is packaged in a self-contained case and requires 120VAC to operate.

The Siemens PTS-5 contains a microprocessor controlled constant current source which enables rapid verification of the performance of the STIII.

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Test Amptector, Digitrip, RMS or Optim Trip Units with Eaton Cutler Hammer 140D481G03

Eaton-Cutler-Hammer_140D481G03A circuit breaker is a manually or automatically operated electrical switch designed to protect an electrical circuit from damage caused by overload or short circuit. Its basic function is to detect a fault condition and interrupt current flow. In addition to providing a means to open and close its contacts manually, a circuit breaker must automatically open its contacts when an overcurrent condition is sensed.

Read More »Test Amptector, Digitrip, RMS or Optim Trip Units with Eaton Cutler Hammer 140D481G03

Protec Offers A Large Inventory Of Secondary Injection Test Sets

For checking circuit breaker and protective relay systems, the secondary injection test set is the main piece of electrical test equipment for companies to use. It differs from the standard primary injection testing method in that there is no current flowing and contacts remain closed during the testing process.

Read More »Protec Offers A Large Inventory Of Secondary Injection Test Sets

Perform Tests on Micrologic, NT and STR Trip units with the Square D S33595

Square D by Schneider S33595 Secondary Injection Test Set

Protective devices such as relays, overload coils and circuit breakers must be checked on installation and at regular intervals while in service to ensure that they are always ready to operate correctly if a fault should occur in the equipment that they are protecting. Routine testing will quickly detect faulty or incorrectly adjusted protection devices, and possibly prevent serious damage to equipment and injury to personnel. 

Read More »Perform Tests on Micrologic, NT and STR Trip units with the Square D S33595

Square D by Schneider S33595, a Full Function Secondary Injection Test Kit

Secondary injection testing normally involves disconnection of the protective device from its normal VT/CT and connection to a specialist test set that can inject and measure/record the required operating signal directly into the protective device relay to cause it to operate the circuit breaker. The advantage of secondary injection testing is that the circuit breaker does not have to interrupt large current and only low voltage signals are injected to operate the device.

Read More »Square D by Schneider S33595, a Full Function Secondary Injection Test Kit

Rent the Square D by Schneider S33595 Secondary Injection Test Set from Protec Today

Square D by Schneider S33595 Secondary Injection Test SetThere are several tests for circuit breakers. Primary injection is done by injecting the actual current required to energize the circuit breaker. This test makes the circuit breaker interrupt large currents thus shortening its life. A secondary injection test, on the other hand, is done by injecting a current with the contacts closed but with no current flowing on the poles. This is a better way of testing circuit breakers because it uses low voltage signals that are injected to the circuit breaker which prolongs the operating life.

Read More »Rent the Square D by Schneider S33595 Secondary Injection Test Set from Protec Today