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OCTC Distribution Transformer

Name: OCTC Distribution Transformer
Brand: NGG POWER TECH INDIA PRIVATE LIMITED
Price: 687000.00 INR
Availability: InStock

Price 687000.00 INR/ Unit

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MOQ : 1 Unit

OCTC Distribution Transformer Specification

Dimension (L*W*H)
Depends on rating (e.g., 1900 x 1200 x 1700 mm for 1000 kVA)

Load Loss
As per IEC/IS standards, e.g., 2300 W at 1000 kVA

High Voltage
11000 V

Operating Temperature
25C to +45C

Coil Material
Copper

Capacity
Various; Commonly 100 kVA, 250 kVA, 500 kVA, 1000 kVA, 1600 kVA, 2500 kVA

Low Voltage
433 V

Voltage Booster Type
On-Load Tap Changer (OCTC)

Cooling Type
ONAN (Oil Natural Air Natural)

Rated Voltage
11 kV / 433 V

Product Type
Oil Cooled Transformer (OCTC)

Material
Copper, Silicon Steel Core

Output
As per rating (typically 11 kV/433 V)

Frequency (MHz)
50 Hz

Efficiency
98% nominal

Phase
Three Phase

Usage
Power Distribution

Coil Structure
Layer or Disc Wound

Coil Number
2 (Primary & Secondary)

Power Scope
Up to 2500 kVA

Weight
Approx. 800 - 2500 kg (varies with rating)

No Load Loss
As per IS 1180 standard

Core Type
CRGO Lamination Core

Dielectric Strength
Oil Dielectric Strength > 60 kV

Insulation Class
Class A or F as per application

Winding Type
Copper Wound (optionally Aluminum)

Mounting
Wheel or Plinth Mounted

Tap Changing Range
+5% to -5% in 2.5% steps

Protection Level
IP 33 / IP 44 (as required)

Standards
IS 1180 / IEC 60076 compliant

Paint Type
Epoxy or Synthetic Enamel with Powder Coating

Buchholz Relay
Provided on request

Earthing Terminal
Double for safety

Impedance Voltage
4% - 7% depending on rating

OCTC Distribution Transformer Trade Information

Minimum Order Quantity
1 Unit

Supply Ability
500 Units Per Month

Delivery Time
30 Days

Main Domestic Market
All India

About OCTC Distribution Transformer

OCTC Distribution Transformer is a sturdy industrial unit that is specially designed to efficiently increase the generated power and transfer it to the supply line with high safety and negligible power loss. It is designed and developed by our skilled professionals by using premium-grade heavy-duty materials which imparts higher strength and sturdiness that makes it capable to resist electrical impacts and high temperatures. OCTC Distribution Transformer offered by us is fixed with caster wheels to easily move it to different locations.

Product Details

Voltage Ratio	11kV/433V
Usage/Application	Industrial
Number of Phase	3-Phase
Cooling Type	Oil Cooled
Brand	NGG Power Tech
Power Rating	500kVA
Standards	IS-2026
Winding Material	Copper

Designed for Versatility and Performance

This distribution transformer accommodates a wide range of applications, offering rated voltages of 11 kV/433 V and capacities from 100 kVA up to 2500 kVA. Copper and high-grade silicon steel cores ensure reliability and minimal losses, while epoxy or powder coating delivers strong protection against environmental factors. Wheel or plinth mounting options provide installation flexibility.

Advanced Tap Changing and Safety Features

A built-in On-Load Tap Changer (OCTC) allows voltage regulation from +5% to -5% in 2.5% increments under load, ensuring consistent power supply. With optional Buchholz relay and double earthing terminals, enhanced operational safety is achieved. High dielectric strength oil and IP-rated enclosures further support safe and efficient operation.

Compliance and Efficiency Guaranteed

Manufactured in India to IS 1180 and IEC 60076 standards, this transformer is designed for optimal efficiency (nominal 98%) and longevity. Losses adhere strictly to national and international guidelines, maintaining operating temperatures from 25C to +45C for stable, round-the-clock service.

FAQs of OCTC Distribution Transformer:

Q: How is the OCTC Distribution Transformer installed and maintained?

A: The transformer can be installed using either wheel mounting for mobility or plinth mounting for stable positioning. Its powder-coated finish and robust construction facilitate minimal maintenance, requiring periodic inspection of oil levels and dielectric strength.

Q: What distinguishes the On-Load Tap Changer (OCTC) in this transformer?

A: The OCTC allows voltage adjustment from +5% to -5% in 2.5% steps while under load, enabling precise control of output voltage and improving power quality to match varying network requirements.

Q: When is the Buchholz relay option recommended?

A: A Buchholz relay is advised if additional protection against internal transformer faults is needed. It provides early gas detection in oil-filled transformers, which is beneficial for high-stakes installations demanding enhanced safety.

Q: Where can this transformer be deployed effectively?

A: This distribution transformer is suitable for industrial, commercial, and utility settings across India, where voltage transformation and reliable power distribution are essential.

Q: What is the process for selecting the right transformer capacity?

A: Capacity selection depends on load analysis, network voltage, and future expansion plans. Common ratings include 100 kVA, 250 kVA, 500 kVA, up to 2500 kVA, ensuring tailored solutions for different supply demands.

Q: How does copper winding benefit transformer performance?

A: Copper windings offer superior conductivity, lower losses, and increased thermal efficiency compared to aluminum, ensuring enhanced transformer longevity, reliability, and overall efficiency.

Q: What are the key benefits of using this transformer for power distribution?

A: Key benefits include high efficiency (98% nominal), compliance with international standards (IS 1180/IEC 60076), robust construction, versatile mounting, safety features, and reliable performance across diverse climatic and operational conditions.

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