When it comes to inspecting and maintaining protective relays and circuit breakers, the secondary injection test kit is the go-to piece of electrical test equipment that every tech and field worker needs.
Trip units must be checked periodically to ensure that there are no defects or faults developing within the system. Because trip units protect workers from injury and equipment from failure, testing them becomes vital within organizations.
The Utility Relay Co. B-291-MP Secondary Injection Test Set is a single-phase test set specifically designed for testing the operation of the AC-PRO-MPTM microcontroller based trip units manufactured by Utility Relay Co.
A plug-in, the AC-PRO-MP is, direct replacement trip unit for the STR trip units on the Merlin Gerin & Square D Masterpact MP breakers.
The Utility Relay Co. B-291-MP can test pick-up and time delays of the various protection functions by driving current into the AC-PRO-MP on the secondary side of the CT circuit.
The B-291-MP will test AC-PRO-MP trip units programmed for 60 or 50 Hertz operation, and the AC-PRO-MP trip system with the exception of the CTs and associated wiring harness.
Each Protec office maintains a full complement of electrical test and measurement equipment. Offering equipment from all of the premiere manufacturers for rent, lease or purchase, Protec has the electrical testing equipment you need to get the job done.
