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?: Can be plugged into the elbow cable connector, not load operation.

Q: DC transmission equipment: Power supply operation of power plant and substation in nowadays are used in DC power supply, it provides power for the control of the load and power load and DC emergency lighting load, is the foundation of modern electric power system control and protection

Q: Distribution system equipment classification: Electronic equipment - named meaning, is mainly composed of electronic components

Q: High and low voltage distribution equipment: High voltage distribution equipment: high voltage fuse; high voltage isolation switch; high voltage load switch; high voltage circuit breaker.

Q: Main equipment of high voltage direct current transmission: Converter also known as converter valve is the key equipment in the converter station, its function is to achieve rectification and inverter

Q: What is the transmission line, what is the power distribution equipment: Distribution equipment is generally referred to as the distribution lines and distribution substations (usually 35kV and below).

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: High voltage has a very high risk, and the target electrical appliances do not need such a high voltage, which needs to reduce the voltage through the transformer

Q: Difference between distribution voltage and supply voltage: A distribution within the cell, the high voltage side is 10KV, the low voltage side is 220V or 380V.

Q: Power distribution equipment should be prepared before the blackout?: Before the power failure, the person in charge or the electrical appliance technician should fill in the work order.

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