Iec standard oil power transformer

product description

Feature of Non-Excitation Voltage Regulating Oil-Immersed Transformer

The S9 series of non-excitation voltage regulating oil-immersed transformer produced by ZTelec Group are the latest series of low-loss copper winding products. High-quality materials are used in this series of products, and new techniques and materials are used in the coil and insulation, greatly decreasing no-load and on-load loss. This series of products possess more reliable and superior performance and structure, and have become the main equipment required for the construction and reconstruction of the national urban and rural power grid which are recommended by the State Economic and Trade Commission.

Technical Requirement of Non-Excitation Voltage Regulating Oil-Immersed Transformer

Environment: -25℃~40℃

Altitude(m): 100 meters or less

Insulation Class: A Class

Frequency(Hz): 50

Tap Range: ±5%、±2*2.5%

Voltage Regulating Mode: No-load Voltage Regulating

Cooling Type:ONAN

Technical Parameter of Non-Excitation Voltage Regulating Oil-Immersed Transformer

Executive Standard: IEC60076 & National Standard

HV:20 LV:0.4/0.415
Capacity	Connection Group	No-Load Loss W	On-Load Loss W		No-Load Current %	Short-Circuit Impedance %
Capacity	Connection Group	No-Load Loss W	Y-Connection	D-Connection	No-Load Current %	Short-Circuit Impedance %
50	Yyn0 Dyn11 Yzn11	130	960	1010	2.1	5.5
100		200	1650	1730	1.6	5.5
160		290	2420	2540	1.4	5.5
200		340	2860	3000	1.3	5.5
250		400	3350	3520	1.2	5.5
315		480	4010	4210	1.1	5.5
400		570	4730	4970	1	5.5
500		680	5660	5940	1	5.5
630		810	6820	6820	0.9	6
800		980	8250	8250	0.8	6
1000		1150	11330	11330	0.7	6
1250		1380	13200	13200	0.7	6
1600		1660	15950	15950	0.6	6
2000		1950	19140	19140	0.6	6
2500		2340	22220	22220	0.5	6