The test bench simulates the distance in the form of impedance and demonstrates the working of a distance relay

Demonstration Unit for Distance Relay

Lab Test

This is a demonstration panel to show the working of “DISTANCE OVER CURRENT RELAY”. A protective relay is a device designed to trip a circuit breaker when a fault is detected. The distance current protection relay is a type of relay which functions depending upon the distance of fault in the line. More specifically, the relay operates depending upon the impedance between the point of fault and the point where relay is installed. These relays are known as distance relay or impedance relay

Measurement accuracy (current): 1%

Rating and trip delay programmable through keypad provided on logic controller.

Sequence of led’s to indicate direction of current flow - impedance gives the distance

Single Phase Variable Voltage Source 0-230V @ 1.5Amp.

Input supply : ac 230v 50/60 hz +/-10%

CT to monitor the current.

PF to monitor the voltage.

Simulation of Impedance of Transmission Line with different tappings.

Impedance Sensing and measuring Micro Controller based Unit.

Digital Voltmeter.

Digital Ammeter.

Loading Arrangement.

MCB Protection, Lamp Indicators etc.

Impedance Relay (Simulated) with setting Arrangement.

Arrangement to create fault.

The test bench is generally offered as a standard issue, but can be designed as per the customer specs

The test bench simulates the distance in the form of impedance and demonstrates the working of a distance relay

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