Electric cable identification deviceIt is of great significance in cable construction and maintenance work. The identification of power outage cables is now easy to achieve, mainly by emitting high current low-frequency pulses. However, this method can only identify power outage cables, and there is no way to identify operating cables. However, in practical work, it is often required that cable identification must be carried out with live identification. The cable identification device is used in the installation, migration, maintenance, and fault handling of power cables to identify a specific cable to be found in a bundle of cables; It has the characteristics of accurate discrimination of cables (dual discrimination of qualitative and quantitative), fast, accurate, simple operation, and wide application range.
1. The online recognition of cables in operation improves work efficiency and reduces economic losses caused by power outages.
2. By using indirect coupling, there is no electrical contact between the operator and the cable, ensuring the safety of the operator.
3. No need to disconnect the connection between the two ends of the operating cable and the distribution equipment, ensuring the normal operation of the electrical equipment.
4. Simultaneously equipped with the function of identifying power outage cables.
Working mode:
1. Signal amplitude comparison method: The signal is coupled to the target cable through a transmitting clamp, and the signal amplitude of each cable is detected using a receiving clamp. The cable with the larger amplitude is the target cable.
2. Comparison method of different frequency signals: Different frequency signals are coupled to the target cable through a transmitting clamp, and different frequency signals are received through a receiving clamp. The target cable is the one with the larger amplitude in each frequency band.
3. Receive a 50Hz signal through a receiver clamp, with the larger amplitude being the target cable.