XWE-DTCW 10kV Switchgear Temperature Sensor ，Plug Voltage Temperature Sensor

XWE-DTCW 10kV plug-type voltage sensor used for voltage signal acquisition of ring main unit bushing insulator for transformer voltage sensor

The plug-type voltage sensor for the ring main unit is a kind of equipment technology that conforms to the primary and secondary fusion equipment of the State Grid. The insulating plug of the cable joint has the characteristics of low power consumption, high accuracy, and three-in-one measurement, measurement and protection.

Features

• Using the composite film capacitor similar to the CVT transformer structure, the long-term stability is good, and the power grid has long-term stability.
• Concentric structure capacitors are used, the high-voltage arm and low-voltage arm capacitors are wound together, and the insulation structure is combined.
• The capacitance value of the main capacitor is 650pF, which has the advantages of large working current and strong anti-interference ability.
• The output internal resistance is small, can adapt to various cables, overcome the error caused by the cable, and the cable exchange error is small at 0.1%.
• It has the characteristics of small change in accuracy affected by the ambient temperature, and it will be incorrect in the full temperature range of -40℃~70℃.
• The maximum variation of the difference is less than 0.25%, which fully meets the temperature variation index requirements of the 0.5-level sensor specified by the standard.
• The secondary signal is output through the isolation transformer, which has better safety and anti-interference ability.

​Technical Parameter

Dimension

Wiring diagram

Precautions

• The secondary output signal leads of the sensor must be kept away from high-voltage components, and should be close to the box, and the excess leads must be cut short. Make it the shortest.
• During the 42kV power frequency withstand voltage test of the sensor, the three-phase parallel working current is about 30mA. To meet the required output power, it is normal for the equipment to show that the test current increases during the test.

COMPANY OVERVIEW

Xian Xiwuer Electronic & Info. Co., Ltd. is located in Beiguan, Xi'an city cover in an area of 4000 ㎡, with employees of 2300, and about 580 technicians, amongthem, there are 135 engineers, 21 senior engineers. The company has total assets of 315 million RMB Yuan, fixed assets of 137 million RMB Yuan, which is a large enterprise mainly engaged in producing electronic components. The company has the largest production scale of Varistor,SPD( Surge Protective Device)and HV Ceramic Capacitor in China, with the following main products :

1. Varistors & SPD

4. Thermistor

The main production line and inspection equipment & instrument are imported from Japan, America, Belgium and Switzerland etc. The annual production capacity of the two leading products has been reached to 5 million pcs and 150 million pcs respectively, with the market holding rate in China of about 10% and 30% respectively by continually technical innovation. Varistors and SPD produced by the company enjoyed great reputation in the international market, being exported to many countries and areas such as Japan,USA, Hong Kong etc., with the customers like India and GE in USA. are already sold to LG company in Korea with large quantity, and also to Spainand India etc.

Not only the products quality and technical capacity, but also the completeness of the models are all in the leading place in China. The main products have got CCEE, UL, VDE & TUV approval. The quality system was set up according to the requirement of ISO9000 since 1992, and has passed ISO9002 approval by DNV International Organization in July 1994, then got ISO9001 certification by British organization in 2000, by then we are both the first one who are approved by ISO9000 certification in the North-west area of China and the same occupation. We passed all the successive periodical audit and smoothly get the new certificate registered in Holland in Aug.1997; the quality system is strengthened and completed constantly. And we also got ISO18000 certificate.

We believe we are able to supply satisfied goods and service to customers home and abroad with the most reasonable price and the shortest delivery time, on basis of our excellent quality assurance capacity, technical development capacity and rich manufacturing experiences.

CERTIFICATE