Manufacturer 12kv Sf6 Gas Outdoor Vacuum High Voltage Circuit Breaker

Manufacturer 12kv sf6 gas outdoor vacuum high voltage circuit breaker
 



 

General introduction
      
     KW20-12 outdoor smart spring vacuum circuit breaker is a self-developed company in a box-type spring operating mechanism circuit breakers. Mainly used for breaking, closing the load current in the power system, overload current and short circuit current. Suitable for substation and industrial and mining enterprises in power distribution system for protection and control, more suitable for rural power grids and frequent operation of the place. 
    The switch adopts vacuum mode arc extinguishing, SF6 gas insulation, excellent overall sealing, internal filled with "zero" gauge pressure SF6 gas, no possibility of gas leakage, high reliability, maintenance-free.

 

Reference Standard

 

The use of environmental conditions
Working temperature: -40~+70ºC
Work environment humidity:0~95%
Place of work elevation: ≤3000 m
Wind pressure: ≤ 700 Pa
Ice thickness:≤10mm
External insulation contamination level: IV
seismic intensity:≤ 8°

Note: This product is not suitable for fire, explosion hazard, chemical corrosion and severe vibration and other places.
Remark: please contact us if the environment parameters exceed the range as required in above table

Technical Parameters:

 Factory Instruction

     Keyu Electric Co.,Ltd was established in 2005,located in Jiangsu Province with a registered capital of 60 million Yuan. Keyu  covers  an area of more than 20,000 square meters. We're a national high-tech enterprise that specializes in manufacturing medium and  high voltage circuit breakers, switchgear and substation. We are qualified suppliers of China National Power State Grid. Keyu is a well-managed enterprise with a skillful staff team and strong technical capability, equipped with domestically first-grade device of production and examination. We are certified by ISO9001:2000 system. A majority of our products have obtained CCC certificate (China compulsory certificate). We are one of the first batch electric appliance manufactures who have obtained 3C certification.
    We offer sevices:over 100 First-class engineers and researchers dedicated in the product and service innovation.Experienced sales and logistic team to operate the transaction and shippment smoothly.Skilled workers and advanced manufacturing equipment gurantee the production and quality well.Professional QC team to gurantee the terminal quality.Good after-sales service to settle any question from our customer and give prompt reply and solution scheme.         
    We provide competitive prices, high quality products, timely shipment and efficient services to develop our cooperation with all of our customers. We would like to extend business with the customers and partners from all over the world on the basis of cooperation and mutual benefit.





Certifications and patents

 

A circulator is a passive non-reciprocal three- or four-port device, in which a microwave or radio frequency signal entering any port is transmitted to the next port in rotation (only).

Applications

Isolator

When one port of a three-port circulator is terminated in a matched load, it can be used as an isolator, since a signal can travel in only one direction between the remaining ports.^[12] An isolator is used to shield equipment on its input side from the effects of conditions on its output side; for example, to prevent a microwave source being detuned by a mismatched load.

Duplexer

In radar, circulators are used as a type of duplexer, to route signals from the transmitter to the antenna and from the antenna to the receiver, without allowing signals to pass directly from transmitter to receiver. The alternative type of duplexer is a transmit-receive switch (TR switch) that alternates between connecting the antenna to the transmitter and to the receiver. The use of chirped pulses and a high dynamic range may lead to temporal overlap of the sent and received pulses, however, requiring a circulator for this function.

In the future-generation cellular communication, people talk about full-duplex radios, where signals can be simultaneously transmitted and received at the same frequency. Given the currently limited, crowded spectrum resource, full-duplexing can directly benefit the wireless communication by twice of the data throughput speed. Currently, the wireless communication is still performed with "half-duplex", where either the signals are transmitted or received at different time frames, if at the same frequency (typically in radar), or the signals are simultaneously transmitted and received at different frequencies (realized by a set of filters called a diplexer).

Reflection amplifier

A reflection amplifier is a type of microwave amplifier circuit utilizing negative differential resistance diodes such as tunnel diodes and Gunn diodes. Negative differential resistance diodes can amplify signals, and often perform better at microwave frequencies than two-port devices. However, since the diode is a one-port (two terminal) device, a nonreciprocal component is needed to separate the outgoing amplified signal from the incoming input signal. By using a 3-port circulator with the signal input connected to one port, the biased diode connected to a second, and the output load connected to the third, the output and input can be uncoupled.

Rf Circulator

Rf Circulator,Passive Device Circulator,High Isolation Circulator,High Power Circulator,Waveguide Circulator,Optical Circulator

CHENGDU JING XIN MICROWAVE TECHNOLOGY CO., LTD , http://www.cdjx-microwave.com