150kVA 0.4kv Cast Resin Isolation Dry Type Transformer

Product Description

All kinds of Dry-type Transformers, especially applicable for Power plant, High-rise Building, Business Center, Vessel, Port, Station Airport, Petrochemical Plant Railway, Tunnel, Mine Underground, Urban Centralized Residential Quarter which is high demand for fireproofing, explosion proofing antipollution.

150kVA Cast Resin Isolation Dry Type Transformer
Product Description

Fireproof, long service life, maintenance is free, safe and reliable, suitable for hotel, high-rise buildings, commercial centers, residential quarters, stadiums, factories, airports, ports, subway, mines and other places.

Product Features
  • High strength of the whole mechanical cast coil and well withstand sudden short-circuit.
  • Strong capability of moisture-proof anti-corrosion, especially suit for working in extreme hard environmental condition, can put into operation without drying process.
  • PD small, long service life. As for the coil is casted by vacuuming and under the condition of "positive pressure", so there is no air bubbles between inter-turn and inter-layer.
  • Intensity of machine is supper great after epoxy-resin, strong capacity of resistance to sudden short-circuit.
  • With impeccable temperature protection and housing guards, providing a guarantee for safe and reliable operation.
Technical Parameter
No Item Technical Data
1TypeDry type
2Rating capacity150 kVA
3Rating Primary voltage0.4 kV
4Rating secondary voltage0.208 kV
5Taping range--
6Tapping methodNo-load tapping
7Impedance voltage4%
8Vector groupDyn11
9Frequency60 Hz
10Phase3
11Insulation classF
12Lightening impulse (HV/LV)-/- kV
13Power frequency withstand3/3 kV
14Temperature rise100 K
15Partial discharge10 PC
16Off-load loss540 W
17On-load loss (120℃)2120 W
18Noise level54 dB
19Cooling methodAN
20Protection degreeIP00
21Winding materialCopper / Aluminum
22Core materialCold-rolled silicon steel
Technical Expertise

Design experts could design according to the specific conditions of the equipment used by various steel companies, well experienced in the design of special rectifier transformers and power supply power transformers used in steel rolling projects. It can also ensure that the design has sufficient large load short-term overload tolerance.

For the design and manufacturing process of rectifier transformers, more attention is paid to the factors that may occur due to the frequent impact of current and voltage. Designers also act as supervisors in the production process to ensure equipment satisfies continuous production requirements.

Product quality depends on advanced production equipment, perfect testing methods and well-experienced production technicians.

Frequently Asked Questions
1. What are the primary applications for these dry-type transformers?
They are ideal for power plants, high-rise buildings, business centers, ports, airports, subways, and mines where fireproofing and explosion proofing are critical.
2. What are the main benefits of using a cast resin isolation transformer?
Key benefits include being fireproof, maintenance-free, and having a long service life with high mechanical strength to withstand sudden short-circuits.
3. Does the transformer require a drying process before operation?
No, due to its strong moisture-proof and anti-corrosion capabilities, it can be put into operation without a drying process, even in extreme environmental conditions.
4. What is the insulation class of this transformer?
This specific model features an Insulation Class F, designed for reliable performance under standard industrial temperature rises.
5. How is partial discharge minimized during manufacturing?
The coils are casted by vacuuming under positive pressure, which eliminates air bubbles between inter-turns and layers, greatly reducing partial discharge.
6. What cooling method is utilized for this equipment?
The standard cooling method is AN (Air Natural) cooling, suitable for most indoor and protected environments.

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