Testing relays and their circuits in vehicles doesn’t always require a trip to the bench. With a few simple tools and ...

This test circuit for electromechanical relays uses a microcontroller to control the relay under test through an optocoupler. A power supply and load produce current in the relay contacts.

Unlike other alternatives on the market, Hongfa’s HF115FP interface relay from Switchtec has a lockable test button, mechanical flag indicator and a LED that are all supplied as standard. These ...

Smaller, lighter and with a higher output power than any other comparable single-phase protective relay test instrument, Megger’s new SMRT1 smart protective relay test set is suited not only for ...

[Viktor] got tired of having exposed high voltage on the bench during the prototyping stage of these projects so he recently built a solid state relay test box.

A new series of relays, called Interfacers by developer, Releco, a unit of Turck Inc., are more flexible and have features designed to minimize downtime.

Traditional testing methods can still be used to test 61850 devices with the MPRT IEC 61850 is the new international communication standard for substations. The main goal of 61850 is to obtain ...

Megger’s new SMRT 36 smart protective relay test set is ideally suited not only for testing today’s installations, but also for meeting the future cha ...