Three phase Dry-type Distribution Transformer 33kV 35kV 38.5kV

  • Three phase Dry-type Distribution Transformer 33kV 35kV 38.5kV
Key attributes
Brand Vziman
Model NO. Three phase Dry-type Distribution Transformer 33kV 35kV 38.5kV
Rated capacity 4000KVA
No-load loss 6860W
Series SCB
Product descriptions from the supplier
Description

Product Detail

The 33kV/35kV voltage level is in the category of sub-transmission and high-voltage distribution. It is higher than the common 10kV/20kV distribution voltage and is usually used for higher power supply capacity and longer power supply distance. It is particularly suitable for supplying power to remote load centers, scattered towns, large industrial and mining enterprises, and wind farms/photovoltaic power stations. With its excellent safety and installation flexibility, the 35kv dry-type transformer has irreplaceable advantages in specific application scenarios.

Dry Transformer Advantages

1.High reliability: using advanced technology, high mechanical strength, strong short-circuit resistance, small partial discharge, good thermal stability, and a service life of 30 years.

2.Zero pollution operation and maintenance: Using epoxy resin cast insulation material to meet high fire and explosion requirements, especially suitable for densely populated or enclosed spaces; Oil-free cooling system, eliminating the risk of oil leakage, in line with environmental protection certification; Fully sealed structure to achieve maintenance-free design, the whole life cycle operation and maintenance costs reduced by 60% +.

3.Wide voltage range adaptation: Support 6.6kV to 35kV medium and high voltage grid access, covering industrial and commercial power distribution, rail transit, new energy grid connection and other scenarios.

4.Efficient heat dissipation and weather resistance: Natural air cooling (AN) or forced air cooling (AF) mode, combined with IP23 and above protection level, can withstand -40 ° C to + 120 ° C extreme environment, humid, dusty, corrosive gas environment can still operate stably.

33kv/35kv Dry Transformer Paramete

Rated Capacity
(kVA)
Voltage Combination Vector Group No-Load Loss(w) Load Loss No-Load Current (%) Short Circuit Impedance (%)
High Voltage(kV) Tapping Range Low Voltage (kV)
800

33-38.5

±5%

±2×2.5%

3.5

6

6.3

10

10.5

11

Dyn11 Yd11

Yd11

Yyn11

2200 9400 1.1 6
1000 2610 10800 1.1
1250 3060 11900 1
1500 3600 15400 1
2000 4130 18200 0.9 7
2500 4750 21800 0.9
3150 5880 24500 0.8 8
4000 6860 29400 0.8
5000 8180 34960 0.7
6300 9680 40800 0.7
8000

Dyn11

Yd11

YNn11

11000 46060 0.6  
10000

6

6.3

105

11

12660    56500 0.6
12500 15400 64600 0.5
16000 18900 76000 0.5
20000 22400 85500 0.4 10

Product Design Advantages

  • Advanced casting process:It adopts the most advanced epoxy resin casting process in China, with good insulation performance;
  • High-quality raw materials:It adopts the new cold-pressed oriented silicon steel sheet as the core, seven-step 45-degree full-bevel joints, beautiful process, and no-load loss is reduced by 3-5 percentage points compared with the three-step;
  • Bending clamps:The independently designed core bending clamps have simple structure, convenient manufacturing and installation, and greatly reduce operating noise.

FAQ
Q: What are the core advantages of dry-type distribution transformer compared to oil-immersed types?
A:

Dry-type transformer use solid insulation materials (such as epoxy resin) instead of insulating oil, eliminating risks of oil leakage, fire, and environmental pollution. They are safer for indoor installation and areas with strict fire protection requirements, require less maintenance, and have better resistance to moisture and dust in harsh environments.

Q: What application scenarios are dry-type distribution transformers best suited for?

A:They are ideal for indoor installations such as commercial buildings, data centers, subway stations, and industrial plants, as well as outdoor environments with high humidity, coastal areas, or places with strict fire safety regulations where oil-immersed transformers are restricted.

Q:How to ensure the safe operation of dry-type distribution transformers in high-humidity environments?

A:Choose models with moisture-resistant insulation materials (e.g., vacuum-cast epoxy resin). Ensure good ventilation around the transformer to prevent condensation. Regularly inspect insulation resistance and perform drying treatments if needed to avoid insulation degradation caused by moisture.

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