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High Voltage Power Transformer

Name: High Voltage Power Transformer
Brand: URJA TECHNIQUES (INDIA) PVT. LTD.
Price: 300000 INR
Availability: InStock

Price 300000 INR/ Unit

Get a Price/Quote

MOQ : 1 Unit

High Voltage Power Transformer Specification

Low Voltage
11 kV / 33 kV

Coil Material
Electrolytic Copper

Capacity
Up to 160,000 kVA

Dimension (L*W*H)
5400 mm x 3200 mm x 4200 mm

Cooling Type
ONAN / ONAF (Oil Natural Air Natural / Oil Natural Air Forced)

Voltage Booster Type
On Load Tap Changer (OLTC)

High Voltage
110 kV / 132 kV / 220 kV (as per requirements)

Standard
IS 2026 / IEC 60076

Rated Voltage
Up to 220 kV

Operating Temperature
-25C to +55C

Load Loss
260 kW (typical at rated load)

Product Type
High Voltage Power Transformer

Material
Copper

Output
Product wise

Frequency (MHz)
50 Hertz (HZ)

Efficiency
99.9%

Phase
Three Phase

Usage
Industrial Power Distribution

Coil Structure
Toroidal / Layer Wound

Coil Number
Multiple (Primary & Secondary)

Power Scope
Up to 160 MVA

Weight
43,000 kg (approx)

Bushing Type
Porcelain / Composite, Oil-filled

Winding Connection
Delta/Star (Dyn11 or as specified)

Core Type
Step-lap Laminated Core

Protection Grade
IP55

Altitude Suitability
Up to 1000 m (above sea level) without derating

Insulation Class
Class A / F (as per customer need)

Seismic Qualification
As per IEC 60068-3-3

Vector Group
Dyn11 (common), customizable

Noise Level
58 dB at 1 meter

Paint Finish
Epoxy based anti-corrosive

Ambient Humidity
95% RH (non-condensing)

Impedance Voltage
Approx. 10-12% (as per design)

Tap Range
10% (in steps of 1.25%)

Dielectric Strength
Up to 630 kV (Impulse Level)

High Voltage Power Transformer Trade Information

Minimum Order Quantity
1 Unit

Supply Ability
100 Units Per Month

Delivery Time
2-3 Months

About High Voltage Power Transformer

Having core competency in this field, we are putting forward the best quality High Voltage Power Transformer. Widely demanded in industrial applications, this transformer is used for supplying high voltage power. Manufactured using premium grade components and latest techniques, provided transformer is available at nominal rates within committed time frame. Examined on certain quality parameters, offered High Voltage Power Transformer is widely cherished for its longer service life.

Key Points of High Voltage Power Transformer:

Hassle free operation
Rugged design
Easy maintenance
Optimum efficiency

Advanced Design for Reliable Power Delivery

Our transformers utilize a step-lap laminated core and layer-wound toroidal coils for superior magnetic performance and low losses. The insulation class (A/F) and robust epoxy-based anti-corrosive paint finish increase durability and operating life in demanding environments. With up to 160 MVA power scope, these units meet the challenges of modern industrial distribution networks.

Customizable Features for Every Requirement

Tailored to diverse customer needs, our transformers include optional winding connections (Delta/Star Dyn11), various bushing materials, protection grades (IP55), and tap changer configurations for voltage adjustment. These transformers are engineered for Seismic Qualification per IEC 60068-3-3, making them suitable for installations in earthquake-prone regions.

Proven Safety and Efficiency Standards

Each transformer is built to IS 2026 / IEC 60076 standards, undergoes dielectric testing up to 630 kV, and achieves impressive efficiency rates of up to 99.9%. Cooling is managed through oil natural air natural (ONAN) or oil natural air forced (ONAF) systems, guaranteeing stable operation even at temperatures between -25C and +55C.

FAQ's of High Voltage Power Transformer:

Q: How is the winding connection configured in these high voltage power transformers?

A: The transformer uses a Delta/Star (Dyn11) winding connection as standard, but it can be customized as per customer specifications. This ensures optimal compatibility with different power distribution network requirements.

Q: What protection and insulation levels do these transformers offer?

A: These units offer an IP55 protection grade to prevent ingress of dust and water. Insulation is provided in either Class A or F, depending on client requirements, ensuring safety and performance even under high ambient humidity (up to 95% RH, non-condensing).

Q: When should I select the ONAN or ONAF cooling type for my transformer?

A: Choose ONAN (Oil Natural Air Natural) for regular operational loads and ONAF (Oil Natural Air Forced) when higher load and more effective cooling are required. This selection depends on expected power demand and installation environment.

Q: Where are these transformers typically installed and what is the altitude limitation?

A: Our high voltage transformers are suited for industrial environments and substation applications across India and globally. They can be installed up to 1000 meters above sea level without the need for derating.

Q: What is the process for customizing the transformer to my requirements?

A: You can specify parameters such as vector group (Dyn11 or as needed), tap range, bushing type (porcelain/composite), insulation class, and paint finish. Our engineers will tailor the design according to your usage, voltage, and capacity specifications.

Q: How does the tap changer benefit my operation?

A: The On Load Tap Changer (OLTC) allows you to adjust the output voltage in steps of 1.25%, up to a 10% range. This helps maintain voltage stability and performance during varying load conditions.

Q: What efficiencies can I expect, and what is the typical noise level during operation?

A: Designed to operate with up to 99.9% efficiency, these transformers minimize energy loss (load loss approx. 260 kW at rated load) and maintain a low noise profile, with a maximum sound level of 58 dB at a distance of one meter.

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