High Voltage Switchgear main points of fixed and withdrawable type two; as regards the structure was divided into open, semi-enclosed, closed; inner have on the environment in terms of indoor and outdoor points; it has a mode of operation in terms of electromagnetic operating mechanism, spring-operated mechanism and a manual operator. Selection of high voltage switchgear, the decision to use the environment within selected based on user type or outdoor type, low voltage switch cabinet how? According to the number of how many switchgear and reliability requirements, low voltage switch cabinet principle determined using fixed or withdrawable switchgear. Fixed switchgear prices cheaper, but not as flexible as withdrawable. High reliability requirements, however, the number of switch counter and fewer substations, try to use fixed switchgear to reduce investment. To determine the combination of high switchgear wiring design of a program, a program can be found in the relevant switchgear electrical manuals. Combined with control, metering, protection, signal and other requirements, select or design their own secondary wiring. After you have selected the main components of the switchgear cabinet according to conditions (altitude, ambient temperature, relative humidity, sunshine, wind speed, daily temperature, etc.) and short-verified. When the operating mechanism is selected, in conjunction with the power substations operating conditions. There DC operating power (silicon rectifier, batteries, etc.) to maximize the use of the electromagnetic operating mechanism. Small substations with manual operating mechanism is relatively simple, but the switching cabinet off the flow to weaken a lot. When ordering information should be provided by the manufacturer of high voltage switchgear in general are: 1. High Voltage Switchgear model, a line protocol number, substation secondary wiring diagram and operating mechanism is equipped with a 2. High Voltage Switchgear floorplan 3. High voltage Secondary switchgear wiring diagrams and terminal diagrams; when secondary wiring standard atlases program selected program number and should indicate the voltage control circuit 4 when ordering whether cabinet variable device and indicate current Variable ratio transformer 5. The need to use non-standard one or two line program or commissioned manufacturers design, Jiaozuo City Qinyang low voltage, in consultation with the manufacturers currently used high voltage switchgear, which has several 1, high pressure Switchgear structure can be divided into fixed and withdrawable two kinds. 2, fixed switchgear has major KGN and XGN series, the old model GG-1A type basically eliminated. 3. Remove the switchgear mainly JYN and KYN series, the most representative is KYN28 high-voltage withdrawable switchgear; withdrawable switchgear no isolating switch, because the circuit breaker after the move to form a break open points, it does not require isolation switch. 4, there are some foreign brands switchgear manufacturers have their own numbering, you can check online. Low voltage switch cabinet installation _ _ Jiaozuo City Qinyang low voltage provided by the Henan Xi Xi Connaught Electrical and Mechanical and Electrical Equipment Co. Connaught. Henan Xi Connaught Electrical Equipment Co. (www.hnxinuo.com) strong, credible, in Zhengzhou, Henan electronics, electrical products processing industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Connaught Electrical and Mechanical study into the brilliant and you work for a better future!