High Precise Current Transformer

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.  

This product is the electronic core and shell assembly into one, easy for users to produce and assemble, accelerate the production schedule. Adopt self-fit flat structure, when the electric CT is closed, the iron core surface will be automatically flat, reduce the assembly time and working noise, and improve the electric performance. Adopt rotating shaft structure combined with anti-falling screws, easy to install. Using silicone waterproof ring, improve the anti-rust ability of electric CT,reduce the risk of loud noise and equipment offline due to rust of electric CT.

CT107 three-phase integrated current transformer is suitable to be installed on the three-phase bushing of ring network switch cabinet and main column switch, which is used for the measurement and protection of three-phase current and zero sequence current, and can also be used for the measurement and protection of zero sequence current of multiple cables  circuits. The iron core and secondary winding of this series of current transformers are vacuum-cast with high quality epoxy resin in a flame-retardant plastic housing, which is moisture-proof, stable and maintenance-free.  

The open-closed zero sequence current transformer is improved on the basis of the traditional transformer. Made of free opening and closing, it can be quickly installed and disassembled in the state of no power failure and no wire disassembly, and the operation is sample. 

The open-closed current transformer is improved on the basis of the traditional transformer. Made of free opening and closing, it can be quickly installed and disassembled in the state of no power failure and no wire disassembly, and the operation is sample. 

The current transformer of the type LMZJ1-0.5 is casting unsaturated resin busbar type product. It is used for metering current and electric energy, relay protection in the electrical system of rated frequency 50Hz or 60Hz and rated voltage 0.5KV.The current transformer has the character of small volume, light weight, superior insulation and so on. The transformer can be executed according to the standards IEC44-1:1996 and GB1208-2006 .

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.

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, GB/T20840.1.2 and GB14287.2-2014.

The clamp type 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 circuit, there are many kinds of through holes corresponding to each other. The primary current of the main circuit includes 1A~2000A, an the rated secondary output current is 1A ~5A (0~1V). This series of products can meet the technical requirements of grade o.2, grade 0.5, grade 1 and other different precision. GB20840.1.2 . 

The open-close 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 circuit, there are many kinds of through holes corresponding to each other. The primary current of the main circuit includes 50A ~4000A, and the rated secondary output current is 1A~5A (0~1V). This series of products can meet the technical requirements of grade 0.2, grade 0.5, grade 1 and other different precision.

LDZC-10 current transformer is suitable to be installed on the special inflatable cabinet for the measurement and protection of current and zero sequence current. 

LMZT-10 current transformer is suitable to be installed on the special inflatable cabinet for the measurement and protection of current and zero sequence current. It can also be used for the measurement and protection of zero sequence current of multiple cable circuit. The iron core and secondary winding of this series of current transformers are vacuum-cast with high quality epoxy resin in a  flame-retardant plastic housing, which is moisture-proof, stable and maintenance free.