HCI Cable Identifier For De-energised Cables

Working Principle

The impulse generator sends out pulses up to a peak current value of 100A into the cable to be identified.This test current generates an electromagnetic field around the cable which is picked up by a flexible identification clamp attached to the cable.The test current of these identification permits a determination of the current value and of the direction of the measuring pulse, thus leading to a safe and reliable identification of the cable.

Tell you the answer in the most intuitive way

The user only needs to observe the display of the receiver, the result display words "Target", "No Signal" and "Direction error!" are simple and clear. Usually only one conductor or cable has the correct polarity, while all other cables will have only a weak signal of the opposite polarity or no signal at all.

Twisted field sensor (optional)

Mainly used in the case of poor grounding circuit, through formation of a loop between the two cores of the cable, to accurately identify the field, increasing the universality of the use of equipment.

Compared with conventional twist field method with audio frequency, twisted field sensor combined with impulse signal has higher accuracy. This technique has a very specific feature, that is, it has a positive maximum signal value on the current emission phase and a negative signal value of the same magnitude on the current return line phase. No signal is generated on the other adjacent cables.

When testing with twisted field sensor, the screen will alternately display "DIRECTION ERROR!" and "TARGET" if the tested cable is the target cable, otherwise "NO SIGNAL" will be displayed.