The PTC-2 Phase Tracer is designed to positively identify the cable phases in a location where many cables come together, as in a manhole. These types of cable are used in power circuits, feeders and distribution networks. The device will also identify the individual phases in a three-phase power cable. The PTC-2 Phase Tracer has three major components: a pulse transmitter, a pulse detector phase tracer, and a pick up coil. For best results the cable should be disconnected from any load impedance with the three-phase conductors tied together and grounded at the far end. However, the device will operate satisfactorily while still connected to low impedance loads.