Dry Type Distribution Transformer

Dry Type Distribution Transformer

In simple words, it’s a particular variant of a transformer which has no insulating liquid in its system. In other words, its winding core is not immersed in a liquid which is common place for other variants of transformers. The windings are sealed in a tank that is pressurized by air. Hence, the name; Dry-Type Distribution Transformer.
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Henan GNEE Electric Co., Ltd. is one of the most reliable manufacturers and suppliers of dry type distribution transformer in China. If you're going to buy customized dry type distribution transformer made in China, welcome to get quotation from our factory. Quality products and reasonable price are available.

 

Dry type distribution transformers are essential components of electrical power distribution systems. Unlike traditional oil-filled transformers, these units are designed to operate without the need for liquid insulation. This key feature makes them a preferred choice for various applications, especially in indoor or environmentally sensitive settings.

Rated capacity (KVA) Connection symbol Voltage combination (KV) No-load loss (W) Load loss (W) No-load current (%) Short circuit impedance (%)
High-
voltage
Tapping range Low-
voltage
30 Yyn0
or
Dyn11
11
10.5
10
6.3
6
±5%
±2×2.5%
0.4 190 710 2.4 4.0
50 270 1000 2.4
80 370 1380 1.8
100 400 1570 1.8
125 470 1850 1.6
160 550 2130 1.6
200 630 2530 1.4
250 720 2760 1.4
315 880 3470 1.2
400 980 3990 1.2
500 1160 4880 1.2
630 1350 5880 1.0
630 1300 5960 1.0 6.0
800 1520 6960 1.0
1000 1770 8130 1.0
1250 2090 9690 1.0
1600 2450 11730 1.0
2000 3050 14450 0.8
2500 3600 17170 0.8
1600 2450 12900 1.0

8.0

2000 3050 15890 0.8
2500 3600 18890 0.8

Power distribution transformer

Dry type distribution transformer features

Dry Insulation: One of the primary distinctions of dry type transformers is the absence of liquid insulation, such as oil or other dielectric fluids. Instead, they rely on solid insulation materials like epoxy resin, which provide electrical insulation and thermal protection. This eliminates the risk of oil leaks or fires associated with traditional transformers.

Environmental Friendliness: Dry type transformers are eco-friendly and comply with stringent environmental regulations. They do not pose the same environmental hazards as oil-filled transformers, making them a suitable choice for areas with environmental concerns.

Indoor Installation: These transformers are ideally suited for indoor applications where space is limited, or where fire safety is a significant concern. Their self-extinguishing properties and low-risk attributes make them safe for installation in confined spaces.

Minimal Maintenance: Dry type transformers require minimal maintenance compared to oil-filled counterparts. Their sealed construction prevents moisture ingress, reducing the need for periodic oil testing and maintenance. This results in lower life-cycle costs.

Efficiency: Dry type transformers are known for their high efficiency, which can help reduce energy losses in power distribution systems. This translates to energy savings and reduced operational costs over time.

Versatility: They are available in a range of voltage ratings and capacities, making them suitable for various applications, from commercial and industrial facilities to renewable energy projects and data centers.

Reduced Fire Hazard: The absence of flammable oil in dry type transformers significantly reduces the risk of fire, which is a critical safety consideration, especially in buildings or areas with stringent fire safety requirements.

Noise Reduction: Dry type transformers are generally quieter than their oil-filled counterparts, which is advantageous in applications where noise pollution is a concern.

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Distribution transformer

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