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Power Distribution Unit Electrical Substation Equipment

category： Power Distribution Equipment

reference price：￥$3,900.00 - $4,000.00

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Liaoning Hongye Electrical Equipment Co., Ltd.

Ms. Xiao
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Product details Company introduction
Parameter information
Products Description
Box type substation description Ac metal closed type shift switch cabinet is a three-phase ac 50HZ indoor device metal closed switch equipment.Is used in power plants, substation system rated voltage 35kV, rated maximum current 2000A maximum voltage no more than 40.5kV single bus or single bus sectionalized sets of distribution equipment. This switch device meets the requirements of DL/ t404-91, IEC298, GB3906 and other standards, and has the functions of preventing wrong operation of circuit breaker, pushing and pulling handcart with load, grounding line, power transmission with grounding line and accidental charging interval (referred to as "five precautions"). Box type substation is suitable for residential district, urban public change, bustling downtown, construction power and so on. Users can choose box type change according to different use conditions and load grade. Since the advent of the box substation, it has developed very rapidly. In developed countries, 70% of the distribution transformers have been developed, and the United States has accounted for 90%. The rapid development of China's urban modernization and the renovation of urban distribution network will be widely applied.environment condition. Box type substations are used in high-rise residential, luxurious villas, square parks, residential areas, small and medium factories, mines, oil fields, and temporary construction electricity and other places to accept and distribute electricity in the distribution system.
Main technical parameters











HV unit
Rated frequency
Hz
50
Rated voltage
kV
7.2 12 24 40.5
Rated current of main bus
A
630 1250 1600
Rated short-time withstand current / duration
kA/s
20/4 25/3 31.5/4
Rated peak withstand current
kA
50 63 80
1min power frequency withstand voltage (to-ground/between open contacts)
kV
32/36 42/48 65/79 95/115
Lightning impulse withstand voltage (to-ground/between open contacts)
kV
60/70 75/85 125/145 185/215
Rated short-circuit breaking current
kA
20 25 31.5
Ground loop short-time withstand current / duration
kA/s
20/2 20/4
Rated short-circuit making current of main loop
kA
50 63 80
Rated active load breaking current
A
630
Rated closed loop breaking current
A
630
Rated transfer current
A
1700
Mechanical life peroid
times
3000 5000 10000




LV unit
Rated frequency
Hz
50
Rated voltage
kV
0.4/0.23
Rated insulation voltage
V
690
Rated current of main loop
A
100~3200
Rated short-time withstand current
kA/s
30/1 50/1 100/1
Rated peak withstand current
kA
63 105 176
5s power frequency withstand voltage
kV
2.5 3.75






Transformer unit
Rated frequency
Hz
50
Rated voltage
kV
7.2 12 24 40.5/0.4
Rated capacity
kVA
30~1600
1min power frequency withstand voltage
kV
25/20 35/28 55/50 85/75
Lightning impulse withstand voltage
kV
60 75 125 170
Impedance voltage
％
4~6
Tapping range
...
±×2.5％ ±×5％
Connection group
...
Y，yn0 D,yn11
Type
...
Oil-immersed type, dry type


Cabinet body
IP code of HV and LV chambers
...
IP33D
IP code of transformer chamber
...
IP23D
Sound level (oil-immersed type/dry type)
dB
≤50/55
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