What role does the High Voltage Switchgear have?
What is a High Voltage Switchgear?High Voltage Switchgear, also known as High Voltage Cabinet, refers to the power system for power generation, transmission, distribution, electric energy conversion and consumption in the on-off, control or protection of the role of the distribution equipment. General power supply bureau, substation are using High Voltage Switchgear, and then through the transformer buck low voltage side led to low voltage distribution cabinet, low voltage distribution cabinet to each power distribution board, control box, switch box, It is a power distribution device that achieves the design function requirements by assembling some switches, circuit breakers, fuses, buttons, indicators, meters, wires and other protective devices into one.
Application scenario of High Voltage Switchgear
High Voltage Switchgear is widely used in power plants, small and medium-sized generators power supply; High-voltage power distribution for industrial and mining enterprises; The power received and sent by the secondary substation of the power system; Large high-voltage motor starting enterprises and institutions.
What role does the High Voltage Switchgear have?
1.After the vacuum circuit breaker car in the High Voltage Cabinet is closed in the test position, the circuit breaker of the car cannot enter the working position (to prevent the load closing).
2.When the ground knife in the High Voltage Cabinet is in alignment, the car circuit breaker cannot enter and close. (prevent closing with ground wire).
3.When the vacuum circuit breaker in the High Voltage Cabinet is working, the rear door of the cabinet is closed by the mechanical and cabinet door on the ground knife. (Prevent stray live intervals).
4.The vacuum circuit breaker in the High Voltage Cabinet is closed when working, and the grounding knife cannot be put in. (prevent live grounding wire).
5.The vacuum circuit breaker in the High Voltage Cabinet cannot exit the working position of the car circuit breaker when the working closing is running. (anti-load broach brake).
Normal operating conditions of High Voltage Switchgear
1.Ambient temperature: the ambient air temperature does not exceed 40 ℃(upper limit), the general area is -5℃(lower limit), and the cold area can be -15℃. If the ambient temperature is too high, the conductivity of the metal will be reduced, the resistance will be increased, and the surface oxidation will be intensified. On the other hand, the excessively high temperature will also greatly shorten the life of the insulation parts in the cabinet, and the insulation strength will decrease. On the contrary, the ambient temperature is too low, and the internal stress will be generated in the insulation parts, which will eventually lead to the destruction of the insulation parts.
2.Altitude: Generally no more than 1000 meters. Due to the thin air at high altitudes, the external insulation of electrical appliances is easy to break down, so the use of strengthened insulation type electrical appliances, increase the air insulation distance, or increase insulation protection measures in the switch cabinet.
3.Ambient humidity: the daily average is not more than 95%, the monthly average is not more than 90%.
4.Earthquake intensity: not more than 8 magnitude.
5.Other conditions: there is no danger of fire, explosion, serious pollution, chemical corrosion and violent vibration.
The price of High Voltage Switchgear
Affected by the application environment, the High Voltage Cabinet does not belong to a standard product, which is a non-standard customized product, and its price is also changed by the customer's requirements for accessories and supporting, and there is no fixed price. If you would like to know the latest prices, please contact us to make an inquiry.
High Voltage Switchgear supplier
Shunzhi Electric Power Equipment Co., LTD. (SHZPower) is a high-tech enterprise specializing in the research and development, design, production and service of intelligent power distribution, automatic control and other products and systems. The main products of the company are electrical automation, high and low voltage switchgear, box-type substation, distribution cabinet, distribution box, control cabinet, control box, solar photovoltaic junction box, etc. The company can design and manufacture the control cabinet according to the actual needs and process requirements of users to meet the special needs of different industries and equipment, and is good at the design and production of high-protection products under high load, high temperature, high humidity and high corrosion environment. If you are looking for a safe, high quality, durable High Voltage Switchgear, please feel free to contact us.
