Some of the more common misoperations of electro-mechanical relays can be attributed to welded contacts or open circuited operating coils. While these type issues may initially appear to be small and inconsequential, if not detected early, the impacts can seriously affect the protection and reliability of electrical distribution. The failure of protective relays to operate in actual fault conditions can be extremely dangerous to the electrical system itself and more importantly...to those who work near the affected circuit.
To help diagnose problems in the operational characteristics of protective relays, consider using the Omicron CMC 356 Universal Relay Test Set and Commissioning Tool. It is a universal solution for testing and verifying the intended functionality of various types of protective relays. The Omicron CMC356 features 6 powerful current sources at 64 Amperes and 860VA per channel. This allows it to test high-burden relays that require a more powerful source for simulated fault conditions. This Relay Test Set is also versatile and can be used in a number of applications such as conducting commissioning tests to verify the connection and proper placement of wiring. This test set can be controlled by the front panel buttons or by a PC running the Test Universe software. The software also allows detailed analysis of the test results.
Related electrical test equipment available for rent from Protec:
Wherever the job takes you (and the equipment), with Protec's multiple locations, we always ship from the office closest to your desired drop location (if the electrical test equipment you need is in-stock at that location), and the equipment can be returned to the nearest office.
We always consider ALL shipping options in order to save you the most time and money.
Also, if you happen to be close to one of our many office locations, walk-ins are always welcome!
Rely on the Electrical Test Equipment Rental Experts, we are there when and where you need us.
Editor’s Note: This post was originally published April, 2012 and has been updated freshness, accuracy and comprehensiveness.