1.complete set 2.small sized 3.compacted structure 4.running safely 5.easy maintenance and mobile ZBW series of combined substation is the combination of the high-voltage equipments,transformer, and low voltage electrical apparatus. It is used in the high-rise building, residential districts, urban and rural construction, hi-tech development zone, small and medium size enterprise, mine and oil fields and the temporary construction sites to receive and distribute the power. ZBW series of combined substation is complete set, small sized, compacted structure, running safely, easy maintenance, and mobile. And it only takes the 1/10-1/5 of the space of the same capacity of civil construction distribution, and therefore greatly reduces the construction cost. It can be used in the ring net distribution system, double power distribution system or radiator terminal distribution system. It is the new complete set equipment used for rural and urban substation construction and reformation. ZBW series of combined substation is fully in accordance with the standard of GB/T17467-1998 (high voltage/ low voltage prefabricated distribution) and the standard of IEC1330.Technical parameter

Serial No.	Unit	Item	HV electrical apparatus	transformer	LV electrical apparatus
1	Rated voltage Ue	KV	7.2,12	6/0.4,10/0.4	0.4
2	Rated capacity Se	KVA		P: 200~1250
				M: 50~400
3	Rated current le	A	200~630		100~3000
4	Rated drop-out current	A	Load switch400~630A		15~63
		KA	Composite apparatus
5	Rated short time withstand current (S)	KA(xs)	20*(2)	200~400KVA	15*1
			12.5*(4)	400KVA	30*1
6	Rated withstand current (peak)	KA	31.5,50	200~400KVA	30
				400KVA	63
7	Rated making current	KA	31.5,50
8	Power frequency withstand voltage 1min	KA	Phase-earth and phase-phase 32,40	Oil-immersed:35/5min	≤300V:2KV
			34,48	Dry-type:28/5min	300,600V:2.5KV
9	Lightning impulse	KV	Phase-earth and phase-phase 60,75	75
			Isolation fracture:75,85	75
10	Noise level	dB		Oil-immersed:55
				Dry-type:65
11	Protection degree			IP23D
12	External dimension	as per the capacity of the transformer

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YBM BOX SUBSTATION(Non-Metallic)