Pole mounted transformer

Application

The overhead transformer may be used alone for the supply of a single phase load or as one of three units in a bank for the supply of a three phase load. The unit may be direct mounted to a wooden or concrete pole, or cluster mounted on a pole for three phase use. Our single phase overhead distribution transformer is commonly used in various places including rural areas, remote regions and scattered villages to provide high quality power supply for daily lighting, agricultural production and industrial plants. Aside from these, it is also suitable for the energy saving projects for railway and urban grid.

standard

All units are built in accordance with both ANSI C57 12.00 and ANSI C57 12.20, except as modified to comply with customer specifications.

material

1. mild steel tank with welded lifting lugs and hanger brackets for direct to phase mounting
2. single piece clamped cover band meets cover retention requirements
3. arrestor mounting nuts welded to tank
4. electrostatical applied phlyster power paint system for superior corrosion protection
5. HV procelain cover mounted bushings
6. tin plated bronze terminals for connection copper or aluminum
7. insulated cover for wild life protection
8. laser engrave aluminum name plate
9. NON-PCB insulating oil
10. tank ground provisions

Service Condition

a) Suitable for both indoor or outdoor
b)Air temperature: Maximum temperature: +40C; Minimum temperature:-25C
c) Humidity: Monthly average humidity 95%; Daily average humidity 90% .
d) Altitude above sea level: Maximum installation altitude: 2000m.
e) Ambient air not apparently polluted by corrosive and flammable gas, vapor etc.
f) No frequent violent shake
Note: * Beyond those services condition should enquiry to manufacturer technical dept during order

technical parameter

Table 1: D11 Series with C.R.G.O Core

Model	RatedCapacity(kVA)	Primary rating(V)	Tapping Range(%)	SecondaryRating(V)	Loss(W)
					No load loss	Load loss
D11-3	3	34500/1992033000/1732130000/1732020000/1154713800/796713200/762011000/6350or others	±2x2.5% ±1 x 5% Or others	120-240110-220240-480250-500Or others	12	45
D11-5	5				25	75
D11- 10	10				50	120
D11- 15	15				65	195
D11-25	25				105	290
D11-37.5	37.5				140	360
D11-50	50				180	500
D11- 75	75				250	650
D11- 100	100				275	850
D11- 167	167				455	1410
D11-250	250				650	2000
D11-333	333				845	2500

outline dimensions

Model	RatedCapacity(kVA)	Overall size(mm)					Weight(kgs)
		A	B	C	D	E	Oil weight	Total weight
D11-3	3	760	430	530	330	286	20	105
D11-5	5	780	430	530	330		30	110
D11- 10	10	830	430	530	330		30	130
D11- 15	15	850	480	580	380		40	185
D11-25	25	880	500	580	410		45	210
D11-37.5	37.5	930	560	640	460		60	300
D11-50	50	980	560	640	460		70	335
D11- 75	75	980	680	720	554	591	103	460
D11- 100	100	1020	780	800	610		123	530
D11- 167	167	1050	830	890	660		155	670
D11-250	250	1100	960	950	660		247	950
D11-333	333	1150	960	960	660		250	1000