20kV 22kV Distribution Transformer

Brand Name: DONGFU Electric
Voltage: 20kV, 22kV
Capacity: 25-5000 KVA
20kV 22kV oil type distribution transformer is manufactured by DONGFU Electric. DONGFU Electric is a professional Manufacturers & Suppliers of oil immersed distribution transformer in China. The performance of its oil immersed transformer is according with IEC60076,GB1094, GB/T6451. Rated voltage: 20kV / 22kV. Connection group: Dyn11. Cooling method: ONAN.

20kV 22kV Oil Immersed Distribution Transformer

20kV 22kV oil type distribution transformer is manufactured by DONGFU Electric. DONGFU Electric is a professional Manufacturers & Suppliers of distribution transformer in China. The performance of its oil immersed transformer is according with IEC60076, GB1094,GB/T6451. DONGFU Electric distribution transformer has won great reputation with high quality and good price in South Asia, Africa, Middle East and South America. We support customization and technical support. Contact us for a surprising quotation and then start our cooperation!

Main Features of 10kV 20kV Oil Immersed Distribution Transformer:

♦The transformer core is manufactured with high quality cold rolled grain-oriented silicon steel, and steps overlapping structure is used for core manufacture, after overlapping, brush special hardener to make cores solid, thus to effectively reduce no-load loss and noise.

♦Winding is manufactured with high strength enameled wires(or paper covered wires), ampere-turns evenly distribute, insulation structure is reasonable, so winding's short circuit impedance is excellent.

♦ The product has compact structure, beautiful appearance, low temperature rise and noise, and strong overload capacity.

♦ The tank body adopts a corrugated oil tank fully sealed structure to prevent air and water from contacting the transformer, reduce oil aging, and extend the service life of the transformer; the elastic deformation of the corrugated sheet adjusts the volume change of the transformer oil thermal expansion and contraction.

♦ The product is an outdoor structure with a high level of anti-pollution; there is no need to replace the transformer oil during the normal use period, and it is truly maintenance-free, ensuring the safe operation and reliability of the power grid.

♦ The transformer is equipped with a pressure release safety protection device. When the transformer fails and the pressure is too high, it can be reliably and safely released through the pressure release valve to prevent the expansion of the accident.

Main Technical of 10kV 20kV Oil Immersed Distribution Transformer :

Rated voltage: 20kV / 22kV

Short circuit impedance: 5.32%

Connection group: Dyn11

Rated frequency: 50Hz/60Hz

Cooling method: ONAN

Conditions of use: outdoor

Technical Data Sheet

Rated capacity(kVA)	Voltage group and tapping range			Vector group	No-load loss Kw	With load Kw	No load current %	Short circuit impedance	Outline dimensions(mm)			Weight(kg)		Gage horizontal* vertical (mm)
	H.V. Kv	H.V. tapping range	L.V. Kv						L	W	H	oil weight	oil weight
	H.V. Kv	H.V. tapping range	L.V. Kv						L	W	H	oil weight	oil weight
30	20（22）	±5 ±2*2.5	0.4	Dyn11	0.09	0.66	2.1	5.5	1040	600	1070	75	360	400*400
50					0.13	0.96	2.0		1040	600	1095	90	460	400*400
63					0.15	1.145	1.9		1080	620	1100	100	520	550*550
80					0.18	1.37	1.8		1110	640	1120	105	555
100					0.20	1.65	1.6		1235	800	1220	120	590
125					0.24	1.98	1.5		1245	810	1230	125	670
160					0.28	2.42	1.4		1265	830	1250	130	720
200					0.34	2.86	1.3		1140	720	1350	195	855
250					0.40	3.35	1.2		1325	850	1500	410	1130	660*660
315					0.48	4.01	1.1		1380	850	1740	420	1630
400					0.57	4.73	1.0		1400	885	1820	430	1735
500					0.68	5.66	1.0		1500	890	1870	480	1990
630					0.81	6.82	0.9	6.0	1645	970	1875	490	2055	820*820
800					0.98	8.25	0.8		1755	1025	1880	520	2600
1000					1.15	11.33	0.7		2270	1060	1880	585	2870
1250					1.35	13.20	0.6		2400	1120	2040	620	3560
1600					1.63	15.95	0.6		2460	1220	2095	850	4385
2000					1.95	19.14	0.6		2480	2400	2940	860	5550
2500					2.34	22.22	0.5		2480	2620	3040	990	6320