Dry-type Transformer

33KV Three-phase Epoxy Resin Cast Dry-type Distribution Transformer

Brand: HENGFENGYOU
Series: SCB10-12
USES: Distribution transformer
Country of origin: China
Terms of payment: L/C, T/T, Western Union, Paypal, Money Gram
Certification: ISO9001、CB、CE、KEMA

Get Quotes

33 kv dry type transformer overview

  - Low loss, energy saving and environmental protection
  - Actual measurement is better than GB and IEC standards
  - Safer excellent fire performance, F1 class
  - High lightning shock resistance (175kV for 33kV products)
  - With perfect temperature protection and control system, it can operate under 120% rated load under forced air cooling condition
  - The high reliability verified by global operation has been exported to more than 50 countries and regions
  - It is mainly used in 33KV urban distribution network, power supply and distribution system of industrial and mining enterprises and civil buildings
  - Products are mainly sold to Southeast Asia, the Middle East, Africa, South America and other countries and regions
  - Executive standard: IEC 60076 series, GB1094 series, GB/T6451-2008
  - The shell materials are aluminum alloy, cold rolled steel plate, stainless steel, etc. (protection level IP20, IP23, etc.)
33KV Three-phase Epoxy Resin Cast Dry-type Distribution Transformer（SCB11 Series ）

33KV Three-phase Epoxy Resin Cast Dry-type Distribution Transformer（SCB11 Series ）

33 kv dry type transformer advantage

- High pressure copper strip winding technology, flame retardant formula vacuum pouring
- Low pressure copper foil winding technology, thermosetting epoxy prepreg cloth insulation
- The core is made of high quality cold-rolled grain oriented silicon steel sheet with mineral oxide insulation
- The high pressure coil is cast under high vacuum, and the casting material system is added with a unique flame retardant filler, which is a patented technology of Hengfengyou Electric

33 kv dry type transformer technical specifications

- Input voltage: 33kV
- Output voltage: 0.4kV
- Capacity: 30-2500 kva
- Remark: voltage, capacity, frequency, connection group and loss can be customized according to customer requirements

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)


50 kva	35 38.5	±5% ±2x2.5%	0.4	Dyn11 Yyn0	450	1420	2.3	6
100 kva					630	2090	2.0	6
160 kva					790	2810	1.5	6
200 kva					880	3320	1.5	6
250 kva					990	3800	1.3	6
315 kva					1170	4510	1.3	6
400 kva					1370	5410	1.1	6
500 kva					1620	6650	1.1	6
630 kva					1860	7690	1.0	6
800 kva					2160	9120	1.0	6
1000 kva					2430	10400	0.75	6
1250 kva					2830	12700	0.75	6
1600 kva					3240	15400	0.75	6
2000 kva					3820	18200	0.75	6
2500 kva					4450	21800	0.75	6
3150 kva					6000	22170	0.75	6

33 kv dry type transformer Case show

33 kv dry type transformer Business Cooperation

Grow business with Hengfengyou

Our goal is to become the world's leading manufacturer of electrical equipment. The business, experience and technology accumulated over the years have benefited customers in more than 50 countries around the world. Once our customers establish a cooperative relationship, they are long-term trusted customers, because Hengfengyou always insists on providing you with our best electrical products and services.

33 kv dry type transformer FAQ

1. What is a 33kV dry-type transformer?
A 33kV dry-type transformer is an electrical transformer that operates at 33 kilovolts (kV) and uses air or solid insulation (such as epoxy resin) instead of liquid coolant for cooling and insulation.

2. What are the advantages of a dry-type transformer over oil-filled transformers?
Dry-type transformers are fire-resistant, environmentally friendly (no oil leakage risk), require less maintenance, and are suitable for indoor installations due to their non-flammable insulation.

3. Where are 33kV dry-type transformers commonly used?
They are widely used in industrial plants, commercial buildings, hospitals, data centers, mining operations, and renewable energy systems where safety and space constraints are critical.

4. What cooling methods are used in dry-type transformers?
Common cooling methods include:
AN (Air Natural): Natural air convection.
AF (Air Forced): Fans for forced air cooling to increase capacity.

5. What are the standard efficiency ratings for 33kV dry-type transformers?
They typically comply with international standards like IEC 60076 or IEEE C57.12.01, with efficiency levels meeting or exceeding Energy Efficiency Class (e.g., IE3, IE4).

6. How do I maintain a dry-type transformer?
Maintenance includes:
- Regular inspection for dust accumulation.
- Checking terminal connections and cooling fans (if equipped).
- Monitoring temperature and insulation resistance.

7. Can dry-type transformers be installed outdoors?
Yes, but they require protective enclosures (IP54 or higher) to shield against moisture, dust, and extreme weather conditions.

8. What are the noise levels of a 33kV dry-type transformer?
Noise levels typically range between 50-70 dB, depending on the design and load. Quieter models are available with noise-reduction features.

9. What is the expected lifespan of a dry-type transformer?
With proper maintenance, dry-type transformers can last 25-30 years or more, depending on operating conditions and load cycles.

10. Are dry-type transformers customizable for specific applications?
Yes, manufacturers offer customization options such as:
- Special voltage ratings (e.g., 20kV to 6.6kV).
- Enhanced protection (e.g., surge arresters, temperature sensors).
- Enclosure materials (stainless steel, corrosion-resistant coatings).