HSSB-II Live Cable Identification Instrument

1HSSB-II Live Cable Identification InstrumentMain characteristics of the instrument

This instrument consists of a cable identification transmitter, a cable identification receiver, transmission and reception calipers, and output signal connection wires. It has high-power current pulse output; The on-site received signal has clear characteristics, is lightweight and flexible, has high sensitivity, and can effectively suppress on-site power frequency interference; Accurate and rapid judgment; Reliable protection circuit, not afraid of output short circuit; Big jaw ф 150 is suitable for power cables of various cross-sectional areas; There is a high-power isolation transformer inside, and there is no direct electrical contact between the operator and the mains power. Greatly ensuring personal safety. When identifying live cables, there is no need to disconnect the connection between the two ends of each cable and the power distribution equipment. Online identification can be carried out when the cable is in a live state, which improves the efficiency of identification and greatly reduces the direct and indirect economic losses caused by power outages.

The biggest feature of this instrument is:

1. Combining live and non live recognition functions is not only suitable for identifying and judging cables that have been shut down, but also for identifying and judging cables with points. The operation is extremely simple and the use is very convenient.

2shouldThe cable identification device is different from conventional identification devices in that it uses communication technology. At the transmitting end, it uses microcontroller technology to encode and power drive the transmitted signal, and couples the signal to the cable; The microcontroller in the receiver decodes and identifies the phase encoded signal received. Identify the target cable from a large bundle of cables based on the phase characteristics of the signal on the target cable. Therefore, it has reliable performance and can accurately distinguish ultra long cables, making it a lightweight, compact, and portable instrument. Suitable for various types of high and low voltage power cables.

IIHSSB-II Live Cable Identification InstrumentIntroduction to Working Principle

The transmitter and receiver of the cable identification device adopt microcontroller encoding and decoding technology, as well as PSK technology widely used in the communication field. On the transmission caliper, a phase encoded signal with an average value of 0 is transmitted. The microcontroller in the receiver filters the received signal through hardware and software before performing phase recognition. Point the arrows of the transmitting and receiving calipers towards the cable terminal. When the receiver calipers clamp onto a certain cable, the receiver ammeter will shift to the right, accompanied by an audible and visual indication. But when clamping other cables, the ammeter is biased to the left, and the current direction is opposite to that of the identified cable, without any sound or light indication. This reflects the specificity of the identified target cable. It is easy to make a clear distinction between the identified cables from multiple cables. Moreover, since the signal current intensity on the identified cable is the same throughout the entire line, the electromagnetic signal intensity received by the receiving clamp along the cable is *, and the identified cable is not limited by the length of the identified cable.

IIIInstrument performance indicators

Transmitter:

1. Zui large pulse peak output current: 20A

2. Pulse repetition frequency: 1 time/2 seconds

3. Power supply voltage: AC220V (± 10%)

4. Weight: 8kg

Receiver:

1. Receiver sensitivity: 40dB

2. Power supply: Two No. 5 batteries

3. Weight: 0.2kg