Epoxy Cast Resin Transformers

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Epoxy Cast Resin Transformers

Power Engineers Company isb nb specialize in manufacturing, exporting, and supplying Epoxy Cast Resin Transformers tailored to diverse specifications. These transformers are engineered to be fire-resistant, maintenance-free, and environmentally friendly. Additionally, they operate with minimal noise and offer exceptional cost efficiency. Crafted ub12sing cutting-edge technology, our Epoxy Cast Resin Transformers are highly reliable, with a robust design that minimizes the risk of failures, making them an excellent choice for dependable power supply solutions.

Fire Resistance: Cast Resin Transformers are naturally fire-resistant and self-extinguishing, ensuring optimal safety. Even if a fire occurs in nearby equipment, these transformers prevent the risk of fire spreading. Their design makes them ideal for indoor use without the need for extra safety precautions, offering peace of mind in fire-prone environments.

  • Ignited for 2 minutes on the surface of cast coil with acetylene torch.
  • As the torch was removed from the surface of burning resin.
  • The flame extinguished by itself after 15 seconds.

Maintenance Free: Maintenance is almost completely eliminated. There is no need for liquid level checks or annual dielectric testing for moisture absorption. The smooth coil surfaces prevent significant dirt and dust accumulation, even in challenging conditions. Routine maintenance is minimal, typically involving periodic visual inspections or Infra-Red thermal scans.
Environmentally Safe: Power-Cast transformers are environmentally friendly, as they do not release oil or toxic gases into the atmosphere. This makes them an excellent alternative to askarel-filled (PCB) transformers, which are hazardous. PCB is highly toxic, chemically reactive, and capable of emitting harmful gases when exposed to high temperatures.
Low Noise: The use of specialized resin encapsulation for the core, combined with a well-engineered clamping mechanism, significantly reduces noise levels. Additional noise reduction is achieved through precise core cutting techniques and the elastic structure supporting the coils, which effectively dampens sound.
Cost Saving: Incorporating the benefits of Power-Cast transformers during the planning phase can significantly reduce the overall costs of a power supply system. Their compact design allows for easy installation, even in buildings with limited space, while their power loss is notably lower compared to oil-immersed and dry-type transformers. Although initially more expensive, cast resin transformers offer cost advantages through reduced maintenance requirements and extended operational life under all conditions, making them a highly economical choice in the long run.
Fewer Failures: Studies conducted by Standard Insurance Company reveal that cast coil transformers have failure rates that are less than 5% of those observed in standard dry-type transformers for certain applications.

Features

30 KVA
5000 KVA
220 VOLTS
33000 VOLTS

Specifications

Power-Cast transformers are available with specification as follows :

Rated Voltage
  • HV coil : Up to 36KV
  • LV coil : 0.48-4.16 KV

*Power-Cast transformers with multiple high voltage connections can also be supplied.

Tap Range
  • Standard : ±2.5%, ±5%
  • Other ratings are available by arrangement.

Power Capacity
  • Single phase : 20 – 2,000 KVA
  • Three phase : 50 – 10,000 KVA
  • Frequency : 50Hz, 60Hz
  • Typical % impedance voltage : 4-8%.

Connections
  • HV coil : Delta
  • LV coil : Wye with neutral point

* Other connections are available to meet requirements.

Temperature Ratings
  • HV coil : Class F
  • LV coil : Class F
  • Max. ambient temperature : 450 C
  • Temperature rise limitation : 1800 C

Epoxy Cast Resin Transformers Standards : Power-Cast transformers are designed to comply with IS standards. Additionally, they can be customized to meet other specific standards upon request: Accessories Normally Provided Accessories :

  • Terminal screws and links for HV taps
  • Nameplate
  • Ground wire clamping screw
  • Protective cap for HV taps
  • Lifting lugs
  • Danger labels
  • Installation manual.

Epoxy Cast Resin Transformers Special Accessories :

  • Cooling fans and control relay

Epoxy Cast Resin Transformers Features :

  • Moisture proof
  • No partial discharge
  • High overload capability
  • Superior Impulse voltage strength
  • Short-circuit damage resistance.
  • Thermal shock resistance
  • Superior fire resistant design
  • Maintenance free
  • Environmentally safe
  • Very low noise
  • Very low operating cost.

Epoxy Cast Resin Transformers Applications : Cast Resin transformers have a wide range of applications. Below are some examples of where they can be utilized:

  • Indoor or outdoor unit substations
  • Industrial and petrochemical plants
  • Offshore platforms
  • Harmonic applications
  • Extremely corrosive and dirty applications
  • Low noise applications
  • Water supplies
  • Transit systems
  • SCR power supplies
  • Grid, ring or radial networks
  • Station auxiliaries.
  • Pad mount applications.