Switchgear Used in the single bus power system

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Specifications

the distribution power device with 12kv, three-phase, AC, 50HZ, used in the single bus and segmented system.

Standard:

GB3906-2006; DL/T 404-1997.

Usage:

Used in the single bus power system with 3.6-12kv, AC, three-phase, 50HZ to accept and distribute power, control, protect and monitor the circuit.

The technical parameter:

Item		Unit	Parameter
rated voltage		kV	3.6,7.2 ,12
rated current		A	1250,1600,2000,2500,3150
rated short-circuit drop-out current		kA	31.5,40
4Srated heat steady current		kA	31.5, 40
rated dynamic current		kA	80 ,100
rated lighting impulse withstand voltage		kV	75
Rated 1min power frequency withstand voltage		kV	42
auxiliary circuit power frequency withstand voltage		V	2000
auxiliary circuit control voltage		V	DC110,220 ; AC110,220
the level of protection of Shell and cabinet			IP4X
Size of cabinet	Middle-type	mm	900×1775×2050(800×1775×2050)
	Landing middle-type	mm	840×1775×2200(1000×1775×2200)

Q: What are the general requirements for working on distribution equipment?: Common type cable connector used in power distribution equipment

Q: Transmission system and distribution system: Transmission system is based on the power supply to the same level or lower substation for the purpose of the general voltage level higher (35KV or more)

Q: What is the role of transmission system and distribution system in power grid: Such as water resources are concentrated in the river basin water level drop larger place, fuel resources in coal, oil, gas.

Q: Transmission lines are not electrical equipment?: Transmission lines in the power transmission project belongs to the carrier, belonging to the power cable category, should not be called equipment

Q: Main equipment of high voltage direct current transmission: It is composed of two or more converter bridges, which can realize the AC DC AC converter.

Q: What is the transmission line, what is the power distribution equipment: Transmission lines generally refers to 110kV and above power lines.

Q: Rural high voltage transmission line equipment ownership: the transformer can be what, look at the role of electrical appliances can be

Q: Transmission and transformation equipment: Because of the need to change the current in the process of transmission, so the current transfer is called power transmission.

Q: Difference between distribution voltage and supply voltage: Distribution voltage refers to the power to the end user when the transmission voltage, China's short distance distribution voltage is 10KV.

Q: Power distribution equipment should be prepared before the blackout?: after the high and low voltage power failure, the work must be carried out before the first inspection

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