33kv Epoxy Cast Dry Distribution Transformer

33kv Epoxy Cast Dry Distribution Transformer

Classification: Dry Type Transformer
Number of Views: 76次
Date of issue: 2026-06-17 15:48:26

Product overview:- Lower loss, more energy saving, 35% energy saving than SCB11 transformer loss
- Actual measurement is better than GB and IEC standards, CB, CCC, KEMA SASO and other certification
- Better safety excellent fire performance, F1 class
- High lightning resistance level (175kV for 33kV products)
- Equipped with perfect temperature protection control system, it can operate at 120% rated load under forced air cooling condition
- Global operation verified high reliability, has been exported to more than 50 countries and regions
- Mainly used in 33KV urban distribution network, industrial and mining enterprises and civil building power supply and distribution system
- 5793 sets of products have been successfully sold to Uganda, Ethiopia, Tanzania, Zimbabwe, Ghana, South Africa, Kenya, Zambia, Rwanda and other countries
- Implementation standard: IEC 60076 series, GB1094 series, GB/T6451-2008
- The shell material is aluminum alloy, cold rolled steel plate, stainless steel, etc. (protection grade IP20, IP23, etc.)

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Product advantages

Product parameters

Ordering instructions

Product advantages

Why Choose Our 33kV Three-phase Epoxy Cast Dry Distribution Transformer？

Leading Technology

• High pressure copper tape winding – Flame retardant formula, vacuum pouring

• Low pressure copper foil winding – Thermosetting epoxy prepreg cloth insulation

• High quality iron core – 45° full oblique joint step laminated structure

The Iron Core

• Made of cold rolled grain oriented silicon steel sheet with mineral oxide insulation

• Precision cutting and stacking minimizes loss, no-load current, and noise

• Class F or Class H core paint prevents corrosion and rust

Low Voltage Winding

• High quality copper foil with thermosetting epoxy prepreg cloth insulation

• Excellent insulation resistance and radial stress resistance against short circuit

• Tinned copper bar outgoing terminal

• Oven heated to 140°C for 4 hours – excellent industrial gas corrosion resistance

High Voltage Winding

• Insulated copper wire with Hengfengyou Electric patented technology

• Small volume: linear voltage gradient from top to bottom

• Large capacity: tape winding technology

• Extremely low electric field between adjacent conductors

• Reliable structure during operation and transportation

Key Advantages

• Copper tape + copper foil winding, flame retardant vacuum casting

• 45° full oblique joint core – low loss, low noise

• Thermosetting epoxy insulation – Class F/H available

• Strong short circuit withstand and industrial gas corrosion resistance

• OEM customized solutions available

Company Advantages – Built for Global Buyers

Product parameters

额定容量Capacity	额定电压及分接范围Rated voltage&Off-load tapping			联结组标号 Vector GroupSymbol	空载损耗 NO-load loss（W）	负载损耗 Load loss（W） F级绝缘	空载电流 NO-load current（%）	短路阻抗Short circuit impedance(%)
	高压 H.V(kv)	高压分接范围 High pressure Tap range（%）	低压 L.V(kv)


30	33	±5% ±2.5%	0.4 0.69	Dyn11 Yyn0	150	710	2	4
50					215	1000	2	4
80					295	1380	1.5	4
100					320	1570	1.5	4
125					375	1850	1.3	4
160					430	2130	1.3	4
200		±5% ±2x2.5%			495	2530	1.1	4
250					575	2760	1.1	4
315					705	3470	1	4
400					785	3990	1	4
500					930	4880	1	4
630					1070	5880	0.85	4
630					1040	5960	0.85	6
800					1215	6960	0.85	6
1000					1415	8130	0.85	6
1250					1670	9100	0.85	6
1600					1960	11700	0.85	6
2000					2440	14400	0.7	6
2500					2880	17100	0.7	6

Ordering instructions

- Main parameters of transformer (voltage, capacity, loss and other main parameters)
- Transformer operating environment (altitude, temperature, humidity, location, etc.)
- Other customization requirements (coupling groups, colors, oil pillows, etc.)
- The minimum order quantity is 1 sets, worldwide delivery within 7 days
- Normal delivery period of 30 days, worldwide fast delivery