current sensor

Wireless passive current temperature sensor is to realize the needs of intelligent and automatic low-voltage distribution network, comprehensive data acquisition and monitoring is necessary. Through real-time online monitoring of the temperature, current and voltage of cables and bus bars, early hidden dangers can be obtained to ensure the safety of users. The passive composite sensor uses the electromagnetic energy around the transmission line to obtain electric energy, online monitoring the temperature and current of the cable, combined with wireless communication, to complete fast and accurate online measurement and save the shackles of the cable, and realize the function of wireless suitable for on-line monitoring of temperature and current transmission conductor in low voltage switch gear. The sensor is not in direct contact with the surface of the electrical equipment, and its built-in analog temperature sensor senses the ambient temperature of the contact surface and gets the corresponding voltage signal. According to the relationship between the voltage signal and no induction, the surface temperature of the live equipment can be determined. Non direct contact, electric field induction is used to detect whether the line is charged,and to detect whether the line is charged when there is no load and no current passing through.  

The high frequency current sensor is suitable for when partial discharge occurs inside the cable, the high frequency current will propagate to the ground along the ground wire. A sensor is installed on the ground cable to detect high-frequency current signals for local discharge detection. The sensor uses Rothschild coil operation mode, which surrounds multiple coils of conductive coil on a ring magnetic material. The high frequency alternating electromagnetic field caused by high frequency current passing through the center of the magnetic core will generate induced voltage on the coil. There is no electrical connection between the measurement loop of the sensor and the measured current, which is a non-invasive detection method ,and the equipment under test does not need to be shut down.  

When partial discharge occurs inside the cable, the high-frequency current will propagate to the ground along the ground wire. A sensor is installed on the ground cable to detect high-frequency current signals for local discharge detection. The circulation sensor uses the Roche coil working mode, and there is no electrical connection between the measurement loop of the sensor and the measured current, which belongs to the non-invasion detection method, and the equipment under test not need to be shut down.    

SEN-LSSZ digital Roche coil sensor, used for the electronic measurement of AC Current. The error due to the position of the measured conductor within the aperture and the error due to the proximity of the external conductor are greatly reduced using magnetic shielding techniques. It is a kind of direct alternating current of the main circuit under test into DC4~20mA or RS485 digital signal output accordingly to linear proportional output, fast response, small volume, small power consumption, frequency response width, anti-interference, has the advantages of lighting wave and shock wave protection. 

Flexible Roche coil is obtained by cable puncture for electronic measurement of AC Current. The error due to the position of the measured conductor within the aperture and the error due to the proximity of the external conductor are greatly reduced using magnetic shielding techniques. The tie-up installation is convenient for construction, especially for large current measurement. Due to its flexible characteristics, it can be used to measurement the conductor current with large size ((such as conductor diameter ≥3M) or irregular shape or very narrow space between conductor ( for example, when the traditional clamp current probe can not be measured, the flexible Rogowski coil current sensor can be easy measured) . The joint has temporary type and long-term type, the former is plug type, used for portable instrument or temporary current measurement , used for long-term current measurement online. Easy to install without damaging the conductor.

Flexible Roche coil current sensor is used to measure AC Current, especially high current. Because of its flexible characteristics, it can be used to measure the conductor current with large size (such as conductor diameter ≥3M) or irregular shape or narrow space between conductor ( for example, when the traditional clamp current probe can not measure, the flexible Rogowski coil current sensor can be used to measure conveniently.) The former is plug-in type, which is used for temporary measurement of portable instrument or current, and for on-line long-time measurement of current. It is easy to install without damaging the conductor. It can be equipped with puncture device, temperature sensor device. Suitable for all kinds of busbar installation.  

Flexible Rogowski current sensor Coil is used to measure AC Current. The error due to the position of the measured conductor within the aperture and the error due to the proximity of the external conductor are greatly reduced using magnetic shielding techniques.

Flexible Rogowski current sensor Coil is used to measure AC Current. The error due to the position of the measured conductor within the aperture and the error due to the proximity of the external conductor are greatly reduced using magnetic shielding techniques.

Flexible Roche coil current sensor is used to measure AC Current, especially high current.Because of its flexible characteristics, it can be used to measure the conductor current with large size (such as conductor diameter ≥3M) or irregular shape or narrow space between conductor ( for example, when the traditional clamp current probe can not measure, the flexible Rogowski coil current sensor can be used to measure conveniently.) The former is plug-in type, which is used for temporary measurement of portable instrument or current, and for on-line long-time measurement of current. It is easy to install without damaging the conductor.

Flexible Roche coil current sensor is used to measure AC Current, especially high current.Because of its flexible characteristics, it can be used to measure the conductor current with large size (such as conductor diameter ≥3M) or irregular shape or narrow space between conductor ( for example, when the traditional clamp current probe can not measure, the flexible Rogowski coil current sensor can be used to measure conveniently.) The former is plug-in type, which is used for temporary measurement of portable instrument or current, and for on-line long-time measurement of current. It is easy to install without damaging the conductor.

Flexible Rogowski current sensor is used to measure AC Current, especially high current.Because of its flexible characteristics, it can be used to measure the conductor current with large size (such as conductor diameter ≥3M) or irregular shape or narrow space between conductor ( for example, when the traditional clamp current probe can not measure, the flexible Rogowski coil current sensor can be used to measure conveniently.) The former is plug-in type, which is used for temporary measurement of portable instrument or current, and for on-line long-time measurement of current. It is easy to install without damaging the conductor.

Internet of things intelligent wireless passive current temperature sensor is to realize the needs of low-voltage distribution network intelligence and automation, comprehensive data acquisition and monitoring is necessary. Through real-time online monitoring of the temperature, current and voltage of cables and bus bars, early hidden dangers can be obtained to ensure the safety of users. The passive composite sensor uses the electromagnetic energy around the transmission line to obtain electric energy, online monitoring the temperature and current of the cable, combined with wireless communication, to complete fast and accurate online measurement and save the shackles of the cable, and realize the function of wireless suitable for on-line monitoring of temperature and current transmission conductor in low voltage switch gear. The sensor is not in direct contact with the surface of the electrical equipment, and its built-in analog temperature sensor senses the ambient temperature of the contact surface and gets the corresponding voltage signal. According to the relationship between the voltage signal and no induction, the surface temperature of the live equipment can be determined. Non direct contact, electric field induction is used to detect whether the line is charged,and to detect whether the line is charged when there is no load and no current passing through.