What is a Relay Tester? – Definition, Uses and More

Relay Tester Definition

Relay Testers are the most used devices in high or medium voltage systems. Its main purpose is to isolate a defective section only within a few cycles but ensuring minimal disruption to healthy units.

A supreme relay is a unit that acts while anticipating the damage of the imperfect section. Relay connections become contaminated with the use or deteriorate with carbon particles, etc.

Therefore, it is convenient for the manufacturer and also for the end-user to check the behavior of the relay after time intervals.

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Over time, the relay technology has evolved, and so has the relay test. There is the development of a good number of test systems assist, by the most recent microprocessor relays.

Current protection relays offer multiple protection functions that require a new level of refined testing software and hardware, which can fully analyze the operation of the unit in “real life.”

Relay tests and each of its facets can be easily handled with advanced relay test equipment. Previously, relay test equipment was associated with something heavy and high volume.

Under that condition, his transfer to the labor camp turns out to be a task only possible for a powerful man. But today, with technological advancement, the relay test equipment is of a smaller size and easy to operate.

With the complete and sophisticated line of relay test equipment, every phase of the relay test can manage effectively. Here is some powerful Relay Testing equipment:

  • AK-6 Three Phase Relay Test Equipment
  • AK-30 Three Phase Relay Test Equipment
  • AK-10 Three Phase Relay Test Equipment
  • APCI-600 primary current injection source
  • ARFD 200 test equipment
  • AMCCB250 Molded Case Circuit Breaker Testing Equipment.

Purpose of Relay testers

Relays are distinct devices, unlike integrated circuits; The use of relay testers is to facilitate a low power logic signal to control a much larger power circuit. The relay helps isolate the high voltage circuit from the little voltage logic circuit to protect the low power circuit.

To achieve this, the relay has a small electromagnetic coil to control the logic circuit, and It results in a high power influenced switch that activates the high power circuit when the coil energized.

The relay that provides a high amount of current to the headlights of an automobile is an example of this. During the relay control, the low voltage logic circuitry from the car dashboard activates the headlights.

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Kamran Sharief

I write about technology, marketing and digital tips. In the past I've worked with Field Engineer, Marcom Arabia and You can reach me at

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Kamran Sharief

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