Manufacturer IEC Standard Three Phase 11kv 250kVA 230V to 400V Step Down Distribution Oil Immersed Power Transformer

• Customization: Available
• Application: Power
• Phase: Three
• Core: Core-type Transformer
• Cooling Method: Oil-immersed Type Transformer
• Winding Type: Two-winding Transformer
• Certification: ISO9001-2000, ISO9001, CCC
• Usage: Power Transformer
• Frequency Characteristics: Power Frequency
• Shape of Core: Ring
• Brand: Kodery
• Transport Package: Wooden Case
• Specification: IEC/ANSI/IEEE
• Trademark: KODERY
• Origin: China
• HS Code: 8504220000
• Production Capacity: 5000mva/Year

Product Description

Product Description

IEC Standard Oil Immersed Power Distribution Transformer from Qinghao includes hermetically sealed, amorphous alloy, conservator type and on-load tap changer type, which is usually pole mounted or installed in distribution station for daily lighting and factory power whose LV output up to 0.4kV. Our distribution transformer rating is up to 2500kVA, and primary voltage up to 35kV. The corrugated tanks as thermal expansion and contraction component enable the transformer oil completely isolated with the atmosphere. Oil distribution transformer with primary voltage range of 6,10,10.5,11,20,22,24,33, 35,38.5kV can be manufactured according to customer requirements.

Product Parameters

Number of Phase	Three Phase
Winding Type	Two Winding
Rated Capacity	250kVA
High Voltage	10/11kV
Low Voltage	0.415kV
Tapping Range	±2x2.5%
Impedance Voltage	4%
Load Loss	2.73/2.6kW
No-load Loss	0.34kW
No-load Current	1.0%
Frequency	50/60Hz
Connection Group	Yyn0/Dyn11
Cooling Method	ONAN
Coil Material	Aluminum/Copper
Size	1240x780x1360mm
Weight	910kg

The rated voltage can be customized as customers' requirements.
The fully sealed oil-immersed power transformer developed by TSTY has the advantage of low loss, low noise and high efficiency, which can achieve good energy-saving effect and reduce pollution. Compared with the ordinary oil immersed transformer, the fully sealed transformer cancels the oil conservator, and the change of oil volume is automatically adjusted and compensated by the elasticity of the corrugated sheet of the corrugated oil tank. The transformer is isolated from the air, so as to prevent and slow down the deterioration of oil and insulation aging, enhance the operation reliability, and avoid maintenance in normal operation.

 

High Voltage:10(6,6.3,10.5,11)KV                               Connection Symbol:D,yn11 or Y,yn0                           Rated Frequency:50Hz/60Hz               Low Voltage:0.4(0.415,0.433)KV                                   Tapping Range of HV:±2x2.5%                                 Insulation Level:LI75 AC35/AC3
Rated power (KVA)	Short-Circuit Impedance(%)	S18 (W)			S13 (W)			S11 (W)			No-Load Current (%)	Sound pressure dB(A)	Weight (kg)	Overall Dimension(mm)
		No-Load Loss	On-Load Loss75ºC		No-Load Loss	On-Load Loss75ºC		No-Load Loss	On-Load Loss75ºC					L	W	H
			Dyn11	Yyn0		Dyn11	Yyn0		Dyn11	Yyn0
30	4.0	60	410	390	65	460	440	75	570	550	1.50	50	400	750	560	850
50		75	600	570	85	660	630	90	830	790	1.30	50	450	760	640	920
63		80	710	680	90	790	760	100	990	950	1.20	50	500	770	670	930
80		95	860	820	105	950	910	120	1190	1140	1.20	52	560	840	720	970
100		110	1040	980	125	1150	1090	135	1440	1360	1.10	52	610	870	730	1020
125		120	1240	1180	140	1370	1310	155	1720	1640	1.10	54	760	1040	810	1020
160		145	1510	1440	165	1680	1600	180	2100	2000	1.00	54	790	1100	830	1070
200		170	1790	1700	195	1990	1890	220	2480	2360	1.00	56	870	1190	880	1070
250		210	2090	2000	240	2330	2220	265	2910	2770	0.90	56	1020	1270	890	1070
315		245	2510	2390	280	2790	2660	310	3480	3320	0.90	58	1180	1330	940	1140
400		300	2960	2810	335	3290	3130	375	4110	3910	0.80	58	1350	1410	940	1210
500		350	3550	3370	390	3940	3750	440	4920	4680	0.80	60	1600	1500	1050	1350
630	4.5	420	4060		465	4510		520	5640		0.60	60	2080	1600	1100	1440
800		510	4910		575	5460		640	6820		0.60	62	2460	1670	1140	1460
1000		604	6740		680	7490		755	9360		0.60	62	2750	1700	1200	1490
1250		710	7860		795	8730		885	10910		0.50	65	3180	1870	1250	1510
1600		855	9490		960	10550		1065	13180		0.50	65	3730	1890	1290	1750
2000	5.0	990	11980		1115	13310		1240	16640		0.40	65	4560	2100	1300	1800
2500		1165	12150		1310	13490		1455	19270		0.40	67	5670	2150	1390	1980
Note: The above parameters are only for designing and selecting  reference, and the final parameters are subject to the actual product.

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