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11kv Cooper Oil Filled Pad Mounted Power Transformers

Zhongyi Electric is a technology-oriented enterprise specializing in R&D, production, sales and services of power transformers, HV/LV switch cabinets and related products. Our factory can offer the complete range of power distribution transformer.

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Product Description

33kV series three phase oil filled distribution transformer manufactured by Zhongyi Electric,is a kind of energy-saving oil filled distribution power transformer classified as S9 / S11 /S13 series ( with no-load tap changer,NLTC) and SZ9 /SZ11/SZ13 series (with on-load tap changer,OLTC) .

Advantages

1 - Low loss, low noise, low partial discharge, low temperature rise and energy-saving

2 - Adopt the latest insulation structure

3 - Excellent anti-short-circuit ability.

4 - As to the heat dissipating element adopts corrugated sheet or sheet radiator and other components.

5 - The iron core adopts high quality cold rolled oriented silicon steel sheet ,it is low loss and small magnetostriction.The whole iron core adopts the structure of 45-degree full oblique joint and round cross-section, which will not be loosened due to vibration during transportation and operation.

Fields of application

Power stations,compact transformer station, normal industrial factories , mines , hospitals, buildings, airports, tunnels, chemical plants, nuclear power plants etc.

Service Environment

Device types: outdoor type

Normal environment conditions of use: the elevation not more than 1000 m

Environmental highest temperature + 40°C, minimum-25°C

The special environment conditions of use: elevation of more than 1000 m

Environmental highest temperature + 40°C, minimum-45°C. (when you order details)

Mounting ambicnt: no corrosive gas, no obvious dirt environment

Technical Parameters

Rated capacity (kVA)	H.V. (kV)	Tapping range	L.V. (kV)	Vector group	Loss(kW)		No-load current (%)	Impedance voltage (%)	Weight (kg)
Rated capacity (kVA)	H.V. (kV)	Tapping range	L.V. (kV)	Vector group	Load loss	No-load loss	No-load current (%)	Impedance voltage (%)	oil	Total
10	6,10,11	±5% or ±2*2.5%	0.4 0.415 0.433	Dyn11 or Yyn0	0.26	0.09	3.2	4	45	172
20					0.44	0.10	3.0		65	240
30					0.63	0.13	2.3		65	245
50					0.91	0.17	2.0		80	330
63					1.09	0.20	1.9		90	365
80					1.31	0.25	1.9		95	410
100					1.58	0.29	1.8		115	490
125					1.89	0.34	1.7		140	620
160					2.31	0.40	1.6		155	720
200					2.73	0.48	1.5		175	810
250					3.20	0.56	1.4		200	940
315					3.85	0.67	1.4		215	1090
400					4.52	0.80	1.3		240	1250
500					5.41	0.96	1.2		285	1460
630					6.20	1.20	1.1	4.5	345	1720
800					7.50	1.40	1.1		390	2050
1000					10.30	1.70	1.0		460	2430
1250					12.00	1.95	1.0		550	2850
1600					14.50	2.40	0.8		690	3600
2000					18.00	2.60	0.7		790	4300

Rated capacity(kVA)	H.V. (kV)	Tapping range	L.V. (kV)	Vector group	Loss(kW)		No-load current (%)	Impedance voltage (%)	Weight (kg)
Rated capacity(kVA)	H.V. (kV)	Tapping range	L.V. (kV)	Vector group	Load loss	No-load loss	No-load current (%)	Impedance voltage (%)	oil	Total
30	15,20	±5% or ±2*2.5%	0.4,0.415. 0.433	Dyn11 or Yyn0	0.60	0.10	2.1	4	85	350
50					0.87	0.13	2.0		90	480
63					1.04	0.15	1.9		110	600
80					1.25	0.18	1.8		110	660
100					1.50	0.20	1.6		120	700
125					1.80	0.24	1.5		130	800
160					2.20	0.29	1.4		140	940
200					2.60	0.33	1.2		160	1130
250					3.05	0.40	1.2		180	1290
315					3.65	0.48	1.1		230	1400
400					4.30	0.57	1.0		250	1550
500					5.15	0.68	1.0		260	1780
630					6.20	0.81	0.9	4.5	320	2100
800					7.50	0.98	0.8		350	2560
1000					10.30	1.15	0.7		450	2800
1250					12.00	1.36	0.6		490	3200
1600					14.50	1.64	0.6		640	4000
2000					17.14	1.94	0.6		800	4900
2500					20.26	2.30	0.5		1180	6300

Rated capacity(kVA)	H.V. (kV)	Tapping range	L.V. (kV)	Vector group	Loss(kW)		No-load current (%)	Impedance voltage (%)	Weightb (kg)
Rated capacity(kVA)	H.V. (kV)	Tapping range	L.V. (kV)	Vector group	Load loss	No-load loss	No-load current (%)	Impedance voltage (%)	oil	Total
50	30,33,35 ,38.5	±5% or ±2*2.5%	0.4 0.415 0.433	Dyn11 Yyn0 Yd11	1.27	0.21	2.0	6.5	265	860
100					2.12	0.29	1.8		310	1150
125					2.50	0.34	1.7		320	1190
160					2.97	0.36	1.6		360	1230
200					3.50	0.43	1.5		390	1300
250					4.16	0.51	1.4		425	1480
315					5.01	0.61	1.4		460	1590
400					6.05	0.73	1.3		490	1760
500					7.28	0.86	1.2		540	2150
630					8.28	1.04	1.1		620	2380
800					9.90	1.23	1.0		780	2800
1000					12.15	1.44	1.0		850	3410
1250					14.67	1.76	0.9		950	3890
1600					17.55	2.12	0.8		1060	4620
2000					19.35	2.72	0.7		1195	5345
2500					20.70	3.20	0.6		1285	5960
3150					24.30	3.80	0.6	7	1470	6695
4000					28.80	4.52	0.5	7	1760	8350