Combination Transformer Substation

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CombinationTransformer Substation

To meet requirement of urban network construction, we have designed ZBW seriescombination substation which is characterized by compact structure, reliableand safe performance, convenient maintenance, aesthetical appearance, etc.
This combination transformer substation is applicable for the outdoor administration of power supply, and can be used in areas like high building, residential area, stations, wharfs, ports, factory and park.

Feature
1. The frame of the transformer substation is made of steel and angle iron galvanized to ensure enough mechanical strength.
2. Cold-rolled steel sheet, stainless steel, aluminum alloy sheet or compound colorful sheet is used for the enclosure.
3. Each cubicle is separated by steel sheet to create different shapes inside.
4. Illuminating devices are installedinside the low voltage and high voltage cubicles and transformer cubicle, whichmakes supervision and maintenance easy.
5. This combination transformer substation is designed with double-layercover which functions to prevent equipment overheat caused by increasingambient temperature.
6. Natural ventilation is taken for transformer. When the temperature inside the transformer cubicle is higher than the set temperature, the fan installed on the top will start to work and control the temperature.
7. Sealing devices are put on the turning parts to ensure moisture-proof.
8. Perfect protection and convenient operation; particularly “five-proof” functions on H.V.side ensures the security of maintenance.
9. The product is good-looking and natural in certain environment

Operation Condition
Altitude: ＜1000m
Ambient temperature: -25℃- 40℃
Wind speed: ＜30m/s
Relative humidity: ＜90％

Specifications

No	Item	Unit	High voltage apparatus	Transformer	Low voltage apparatus
1	Rated voltage Ue	kV	7.2, 12	6/0.4, 10/0.4	0.4
2	Rated capacity Se	kvA		200~1250

3	Rated current Le	kvA	200~630		100~3000
4	Rated drop out current	A	switch disconnector 400~630A		15~63
		kA	subject to fuse if the combined appliance is adopted
5	Rated short time withstand current	kA	20(2S)	200~400kvA	15(1S)
			12.5(4S)	400kvA	30(1S)
6	Rated crest withstand current	kA	31.5, 50	200~400kvA	30
				400kvA	63
7	Rated making current	kV	31.5, 50
8	1 min power frequency withstand voltage	kV	phase to earth phase to phase 42, 30	Oil-immersed transformer: 35/5 min	≤300V when 2kV
			across isolating distance 48, 34	dry type: 28/5 min	300, 660v when 2.5kV
9	Lightning impulse withstand voltage	kV	phase to earth phase to phase 85, 75	75
			phase to earth phase to phase 85, 75
10	Noise	dB		Oil-immersed transformer: ＜55
				dry type: ＜65
11	Protection class		IP33	IP23	IP33
12	Outline dimension	Choose different dimension according to the capacity and type of power transformer

Founded in 1996,People Group is a professional manufacturer and supplier of power transformer,based in China.Our products mainly include PC plug socket coupling, power supply, AC contactorand metering instrument. In order to ensure our customers find the product theyrequire, we also offer instrument transformer, dropout fuse and surge arrestor,and more. Meanwhile, our location offers us easytransportation by water, land and air, which reduces both our and our clients’transportation cost and also makes it easy for customers to visit us.

If you have anyquestions, please contact us.

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