China 33kV On load power transformer Manufacturer and Supplier

Features of Products

SZ11 series 33KV class On-load voltage regulation is a voltage regulation method by which a transformer can change the voltage
by changing the tap gear when operating under load. Power electronic component switches have the advantages of frequent switching,
no spark and long service life, so they can be used as on-load tap-changer for distribution transformers.

Standard

GB1094.1-2013; GB1094.2-2013; GB1094.3-2013; GB1094.5-2008; GB/T 6451-2008; GB/T1094.10-2003; JB/T10088-2004
IEC60076; SANS 780 STANDARDS

Features of Products

1. Meet or exceeds ANSI. IEC. GB. SANS. Standards
2. Safe Handling, Installation and Operation.
3. Attractive, modern appearance
4. Reasonable Structure
5. Fully-sealed
6. Higher system reliability
7. High security and reliability in operation
8. High capacity of overload and efficiency
9. Robust construction having excellent short circuit and thermal withstand capabilities
10. EVERPOWER Transformers are more efficient by Reduced no-load losses and Reduced load losses

Transformer normal service conditions

1.The height above the sea level is below 1000m;
2.Ambient temperature;
3.Highest air temperature+40℃;
4.Highest daily average air temperature+30℃;
5.Highest annual average air temperature+20℃;
6.Lowest outdoor air temperature-25℃;

SZ11 series 33kV on-load regulation power transformer technical data
Rated Capacity (kVA)	Voltage Group (kV)		Vector Group	Impedance voltage	Loss(kW)		No-load current	Weight(kg)			LBH(mm) Outline dimension	Gauge vertical horizontal (mm)
Rated Capacity (kVA)	High Voltage	Low Voltage	Vector Group	％	No-load	Load	％	Machine weight	Oil weight	Gross weight	LBH(mm) Outline dimension	Gauge vertical horizontal (mm)
800			Yd11	6.5	1.30	10.40	1.00	1350.0	700	2780	279012202150	820/820
1000					1.52	12.80	1.00	1575.0	775	3290	283012402250	820/820
1250					1.86	15.40	0.90	1810.0	880	3845	287013102370	820/820
1600					2.24	18.43	0.80	2190.0	960	4295	290015102420	820/820
2000					2.88	20.25	0.70	2460.0	1090	4890	292017502450	820/820
2500	38.5				3.40	21.73	0.60	3010.0	1205	5660	298018402530	1070/1070
3150	36	11		7	4.04	26.01	0.56	3785.0	1500	7600	315022202620	1070/1070
4000	35	10			4.84	30.69	0.56	4690.0	1790	8500	327023902670	1070/1070
5000	34.5	6			5.80	36.00	0.48	5570.0	2015	9790	347025802950	1070/1070
6300	33			7.5	7.04	38.70	0.48	7380.0	2460	12620	370025802950	1475/1475
8000			Ynd11		9.84	42.75	0.42	8870.0	2650	14100	385026803150	1475/1475
10000					11.60	50.58	0.42	10020.0	2930	16500	392037203230	1475/1475
12500				8	13.66	59.85	0.40	12880.0	3710	19780	401029503410	1475/1475
16000					16.46	74.02	0.40	16120.0	4280	23950	412031803570	1475/1475
20000					19.46	87.14	0.40	18580.0	5230	29600	433035603990	1475/1475

Note:It can supply voltage regulating range of ±3×2.5%or ±2×2.5%forhigh-voltage on-load regulation transformer

THREE-PHASE OIL IMMERSED AMORPHOUS
ALLOY DISTRIBUTION TRANSFORMER TECHNICAL DATA

Rated Capacity (kVA)	Voltage Combination (kV)			Vector group	No-load Loss(kV)	Load Loss (KW)	No-load current %	Impedance voltage %
Rated Capacity (kVA)	High Voltage	HV tap changer (%)	LV(kV)
30					0.33	0.60	1.70	4.0
50					0.43	0.87	1.30
63					0.50	1.04	1.20
80					0.60	1.25	1.10
100					0.75	1.50	1.00
125					0.85	1.80	0.90
160					0.10	2.20	0.70
200	13.8				0.12	2.60	0.70
250	13.2	±5	0.4		0.14	3.05	0.40
315	11	±2*2.5	0.415	Dyn11	0.17	3.65	0.50
400	10.5		0.433	Dyn5	0.20	4.30	0.50
500	10				0.24	5.15	0.50
630	6				0.32	6.20	0.30	4.5
800	10				0.38	7.50	0.30
1000	6				0.45	10.30	0.30
1250					0.53	12.00	0.20
1600					0.63	14.50	0.20
2000					0.75	17.40	0.20	5.0
2500					0.90	20.20	0.20	5.0