AC metal enclosed switchgear 3.6-12kV

The device is an indoor metal armoured withdrawable switchgear (hereinafter referred to as switchgear), a complete set of power distribution equipment for 3.6-12kV three-phase AC 50Hz single bus section system. It is mainly used in power plants, small and medium-sized generator power supply, industrial and mining enterprises and enterprises distribution, and the secondary substation of electric power system, power supply and large high-voltage motor starting. For the purpose of control, protection and monitoring, the switchgear meets the requirements of DL 404-2007, IEC 60298, GB3906-2006 and other standards.

General:

Live tank has the interlocking function of preventing the push-pull circuit breaker with load, preventing the circuit breaker from being switched on incorrectly, preventing the grounding switch from being switched on when the grounding switch is in the closed position, preventing the grounding switch from being switched on incorrectly, and preventing the grounding switch from being switched on incorrectly. It can be equipped with both VS1 vacuum circuit breaker and ABB VD4 vacuum circuit breaker. In fact, it is a power distribution device with superior performance.

Service Environment

Ambient air temperature: upper limit, +40℃; Lower limit, -10℃
Altitude :≤1000M
Relative ambient humidity: the average daily humidity is not more than 95%, the average monthly relative humidity is not more than 90%;
Earthquake: intensity does not exceed 8°
The surrounding air should be free from corrosive or flammable gas, water vapor and other obvious pollution.
No serious pollution and frequent violent vibration, harsh conditions under the severity of the design to meet the class requirements.
Key Feature
The switchgear is designed according to the armored metal enclosed switchgear in GB3906-2006. The whole is composed of two parts: the cabinet and the middle withdrawable part (i.e. the hand car).
The cabinet is divided into four separate compartments-the protection level of the enclosure is IP4X, and the protection level of each chamber and circuit breaker door is IP2X when opened.
It has overhead inlet and outlet lines, cable inlet and outlet lines and other functional schemes, and can be arranged and combined into a distribution device in various scheme forms.
The switchgear can be installed, debug and maintained from the front, so it can be composed of back-to-back dual arrangement and wall installation, improve the safety and flexibility of the switchgear, reduce the footprint.

Technical Data

Name	Unit	Data
Rated voltage	kV	3/6/10
Maximum operating voltage	kV	3.6/7.2/12
power frequency withstand voltage	kV	42（1min）
Impulse withstand voltage	kV	75
Rated frequency	Hz	50
Rated current	A	630-4000
4s Rated heat stable current 4s	kA	16-50
Rated dynamic stable current	kA	40-125
Rated short-circuit breaking current	kA	16-50
Rated short-circuit switching current	kA	40-125
Rated voltage of switching and auxiliary circuits	V	24、30、48、60、110、220AC110、220
Class of protection		IP4X