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Passive temperature sensor is used to measure the temperature of the surface or contact of high and low voltage live objects, such as the operating temperature of exposed contact in high voltage switch-gear, bus connection, outdoor switch and transformer. Wireless temperature sensor is composed of temperature sensor, signal conditioning amplifier, logic control circuit, wireless modulation interface, etc. The sensor sends the collected temperature signal to the wireless temperature monitor through the wireless network.  

Wireless temperature sensor is used to measure the temperature of the surface or contact of high and low voltage live objects, such as the operating temperature of exposed contact in high voltage switch-gear, bus connection, outdoor switch and transformer. Wireless temperature sensor is composed of temperature sensor, signal conditioning amplifier, logic control circuit, wireless modulation interface, etc. The sensor sends the collected temperature signal to the wireless temperature monitor through the wireless network.  

The structure of NTC/PT100 temperature sensor is simple, and it can be bundled and installed with a strap. The PT100/PT1000 or NTC thermistor and probe assembly can be customized accordingly to the requirements. The temperature requirements can be customized according to the requirements of customers. Generally, the NTC thermistor is used.

Passive power 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.

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.  

Drop state transformers usually refer to transformers installed on drop fuses or related equipment that can monitor and feedback the drop state. Mainly used in rural power girds, remote suburbs and other power systems that use many drop switches. In these areas, when the line overload fuse blows or the arc tube falls, causing a power outage,the transformer can send out a signal in time to help maintenance and inspection personnel quickly located the fault point, reduce the time and the energy consumption of manual fault finding. And improve emergency repair efficiency and ensure the stability and reliability of power supply.  

BH/EMS current transformer is mainly used for cables and copper bars. It has simple structure, reasonable design and flexible application. According to the specifications of the copper bars used in the main loop, there are a variety of core aperture corresponding to the main loop. This series of products can meet the technical requirements of 0.2,  0.5, 1 and other different precision GB/T20840.1.2.

When measuring the high current of alternating current, SEN-BHP2 series current transformers need to be converted to a relatively uniform current for the convenience of secondary instrument measurement( the secondary rating of current transformers is set as 5A or 1A in China). Current transformer in the process of short circuit transition can correct the primary current, the relay protection of right action plays a decisive role, protective current transformer (TA) mainly cooperate with relay protection device, such as short circuit occurred in line failure, provide signals to cut off the fault circuit to relay device, protect the safety of the power system. Name of protective current transformer: low voltage protective current transformer Primary measuring range 200~6300A, secondary output 5A, 1A, mainly accuracy level:  5P10, 10P10, 10P20, 5P20, etc. Collect low voltage overload and short circuit signals, and use with motor protection unit.  

When measuring the high current of alternating current, SEN-BHP series current transformers need to be converted to a relatively uniform current for the convenience of secondary instrument measurement( the secondary rating of current transformers is set as 5A or 1A in China). Current transformer in the process of short circuit transition can correct the primary current, the relay protection of right action plays a decisive role, protective current transformer (TA) mainly cooperate with relay protection device, such as short circuit occurred in line failure, provide signals to cut off the fault circuit to relay device, protect the safety of the power system. Name of protective current transformer: low voltage protective current transformer Primary measuring range 200~6300A, secondary output 5A, 1A, mainly accuracy level： 5P10， 10P10, 10P20, 5P20, etc. Collect low voltage overload and short circuit signals, and use with motor protection unit.  

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.

Round three-phase current transformer designed for collecting current signals. The secondary current is mA level and must be used in the core threading mode, which is designed strictly in accordance with the standard NSX and NXM MCCB routing dimensions. This series of products has a wide measuring range ,rated primary current range 1A~800A rated secondary current range: 20mA ~1A,excellent advanced production process. To ensure its accuracy level, reliability and other technical requirements, this series of products meet the requirements of GB 28184-2011, and GB14287.2-2014.

Three-phase digital current transformer designed for collecting current signals. The secondary current is mA level and must be used in the core threading mode, which is designed strictly in accordance with the standard NSX and NXM MCCB routing dimensions. This series of products has a wide measuring range ,rated primary current range 0A~800A rated secondary current range: 20mA ~5A,excellent advanced production process. To ensure its accuracy level, reliability and other technical requirements, this series of products meet the requirements of GB 28184-2011, GB/T20840.1.2 and GB14287.2-2014.