20kv Lớp 50kVA-2500kVA Máy biến áp phân phối cuộn dây đôi ba pha

Company Profile

Henan Energy Electric Equipment Co., Ltd. was established in 2011 and is an excellent and reliable transformer manufacturer in China. The company mainly develops and produces oil-immersed transformers, dry-type transformers, box-type substations and high and low voltage complete sets of equipment.The equipment put into production and operation of the project advocates energy saving, intelligence, information and mechanization. The company has established the Henan Triangle Energy-saving Transformer Engineering Technology Research Center,with 71 utility model patents and 15 invention patents.With years of accumulation in the transformer industry and strong technological innovation capabilities, HZEC products are sold to the Middle East, North America, South America, Europe, Southeast Asia, Africa and other regions, covering more than 40 countries.

Product Description

24/20kV distribution transformer refer to a static electrical appliance in a power distribution system that converts AC voltage and current according to the law of electromagnetic induction to transmit AC power. In some areas, power transformations with a voltage level below 20kV are called "distribution transformer" or "blending" for short. The installation of "matched" places and places is both a substation. Distribution transformers should be installed on the column or open floor installation.

Product Features

1. Itmeets or exceeds ANSI.IEC.GB.SANS standards.
2. Safe handling, installation and operation.
3. Attractive and 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 with excellent short circuit and thermal withstand capabilities.
10. It is more efficient by reduced no-load losses and reduced load losses.

Product Parameters

20kV Class 50 kVA-2500kVA Three-phase Double-winding Off-circuit Tap-changing Distribution Transformer
Rated capacity kVA	High Voltage Combination			Vector group	No-load loss(kW)	Load loss(kW)	No-load current(%)	Impedance(%)
	HV (kV)	Tap changing (%)	LV (kV)
50	20	±2×2.5 ±5	0.4	Dyn11 Yyn0	0.13	1.01/0.96	2.0	5.5
100					0.20	1.73/1.65	1.6
125					0.24	2.08/1.98	1.5
160					0.28	2.54/2.42	1.4
200					0.34	3.00/2.86	1.3
250					0.40	3.52/3.35	1.20
315					0.48	4.21/4.01	1.10
400					0.57	4.97/4.73	1.00
500					0.68	5.94/5.66	1.00
630					0.81	6.82	0.90	6.0
800					0.98	8.25	0.80
1000					1.15	11.3	0.70
1250					1.38	13.2	0.70
1600					1.66	16.0	0.60
2000					1.95	19.1	0.60
2500					2.34	22.2	0.50

Note 1: For transformers with a rated capacity of 500 kVA and below, the load loss value above the slash line in the table applies to the Dyn11 vector group and the load loss value below the slash line applies to the Yyn0 vector group.
Note 2: When the transformer annual average load rate is between 30% and 36%, the loss value in the table can be used to obtain the highest operating efficiency.

Service Environment

1. Altitude: Below 1000m;
2. Device type: Outdoor type;
3. Ambient temperature: Minus 25ºC to 40ºC
4. Air relative humidity: ≤90% (+25ºC)
5. Installation site: No corrosive gas, no obvious dirt and other areas;
6. For industrial and agricultural power distribution and lighting use.

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