Any electrical or electronic installation needs to have test equipment and tools to ensure continuity of service and trouble-free operation. Electronic test equipment consist of circuitry that can produce the signals that elicit a response in the device being tested.
Test equipment is able to detect if there is any malfunction in the device and locate the area where it occurs. By doing this, necessary repair work can be carried out immediately and the period of the outage can be kept as short as possible. Modern test equipment have automated features incorporated with relays and instruments, which simulate real fault situations.