Indoor 12kv HV AC metal enclosed switchgear

Indoor armored fixed metal enclosed switchgear (hereinafter referred to as switchgear), suitable for 12kV and below three-phase AC 50Hz power system. As a complete set of power distribution devices within the user to receive and distribute electric energy, it is mainly used in power plants, industrial and mining enterprises to distribute power, and power substation in the power system, and the control and protection of motors and transformers. The feature of this product is that it can achieve "three cabinets in parallel", that is, the circuit breaker cabinet, load switch (fuse - combination electrical appliance) cabinet, vacuum contactor cabinet three schemes have the same dimensions, and the busbar connection is consistent.

General:

The patented design of this equipment can achieve the maximum current of 5000A and the maximum breaking electrical parameters of 50KA. The fus-combination electrical solution can achieve the maximum current of 315A and the maximum breaking of 40KA electrical parameters, which is a unique patented product in China, especially suitable for the switchgear at the export of power plants and other equipment selection in places with high current and high breaking power

Service Environment

The ambient air temperature does not exceed 40 ° C, and the average value measured within 24 hours is not more than 35℃, the minimum is not less than -15℃;
The altitude is not more than 1000m
Temperature conditions A relative humidity: the daily average does not exceed 95%; The monthly average does not exceed 90%
Steam pressure: the average daily value does not exceed 2.2kPa; The monthly average does not exceed 1.8kPa.
The surrounding air is not significantly exposed to dust, smoke, corrosive and/or combustible gases
Contamination by body, steam or salt spray.
When the switchgear is installed at an altitude higher than 1000m, the ordering party shall comply with the requirements manufacturers shall consult to take necessary insulation measures.
When the maximum ambient temperature exceeds 40 ° C, the rated current carrying capacity of the switch cabinet is set the goods must be reconfirmed by the manufacturer.
Key Feature
The unique structure makes the cabinet no longer use organic insulation materials, but use air as the main insulation
The key point of heating in the switch cabinet, the isolation contact is completely exposed to the outside face, and can be directly observed and measured from the front of the cabinet, which is conducive to heat dissipation and can ensure the safety of operation
The protection grade of the switchgear shell is large IP40 and the compartment IP30, which meets the IP20 required by the GB3906-2006 compulsory standard
Because the switchgear can be maintained and overhauled on the front, the installation against the wall will not affect any use

Technical Data

Name		Unit	Data
Rated voltage		kV	12
power frequency withstand voltage	Phase to phase、phase to earth	kV	42
	Between open contacts		49
lightning impulse withstand voltage	Phase to phase、phase to earth	kV	75
	Between open contacts		85
Rated frequency		Hz	50
Rated current of main bus		A	1250、1600、2000、2500、3150、4000、5000（Air cooling）
Rated current of branch loop		A	630、1250、1600、2000、2500、6150、4000、5000（Air cooling）
Rated short-time withstand current		kA	31.5、40、50
Rated peak withstand current		kA	82、104、130
Rated short-circuit duration（50kA）		S	4(2)
Class of protection（Enclosures/compartments）			IP40/IP50
Operational continuity classification			LSC2B-PM
IAC class			BFLR
Static load		Kg	About1000
Live load		Kg	About5000
dimension		Mm	840×2450×1400（1770）