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2.5MVA Substation Power Transformer Conservator Type Oil immersed Step Down 24940V To 480V ANSI IEEE Standards

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2.5MVA Substation Power Transformer Conservator Type Oil immersed Step Down 24940V To 480V ANSI IEEE Standards

Brand Name : WINLEY

Model Number : S-2500/25

Certification : CE,ISO

Place of Origin : CHINA

MOQ : 1unit

Price : $5000-$150000

Payment Terms : T/T

Supply Ability : 500set/month

Delivery Time : 30days

Packaging Details : Plywood case

Type : Substation Power Transformer, Conservator Type

Capacity : 2.5MVA (2500KVA)

Primary Voltage : 24940V

Secondary Voltage : 480Y/277

Cooling Class : KNAN/KNAF

Winding material : Copper

Vector Group : DYN1

Efficiency Standard(s) : Meets ANSI/IEEE Standards

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2.5MVA Substation Power Transformer Conservator Type Oil immersed Step Down 24940V To 480V ANSI IEEE Standards

This Substation Power Transformer is a liquid-filled, pad-mounted, conservator type designed for reliable three-phase radial feed applications. With a capacity of 2.5 to 3.1 MVA and a vector group of DYN1, it supports both step-up and step-down operations. The transformer operates at a primary voltage of 24,940V (25 kV class) with a delta phasor and secondary voltage of 480Y/277V (1.2 kV class) with a wye-neutral configuration. It features a primary BIL of 110 kV and secondary BIL of 30 kV, operates at 60 Hz, and maintains a 55°C temperature rise with Class E insulation rated for 120°C. The cooling class is KNAN/KNAF, and it meets ANSI/IEEE efficiency standards, ensuring high performance and durability in demanding power distribution environments.

Product Photos

2.5MVA Substation Power Transformer Conservator Type Oil immersed Step Down 24940V To 480V ANSI IEEE Standards

2.5MVA Substation Power Transformer Conservator Type Oil immersed Step Down 24940V To 480V ANSI IEEE Standards

2.5MVA Substation Power Transformer Conservator Type Oil immersed Step Down 24940V To 480V ANSI IEEE Standards 2.5MVA Substation Power Transformer Conservator Type Oil immersed Step Down 24940V To 480V ANSI IEEE Standards

Main Data

Transformer Type Substation Power Transformer, Conservator Type
Transformer Configuration Liquid Filled Pad Mounted
Transformer Feed Type Radial Feed
Phase Three Phase
Capacity 2,500 KVA/ 3,100 KVA
Vector Group DYN1
Primary Voltage 24940V
Secondary Voltage 480Y/277
Frequency 60 Hz
Temperature Rise 55°C
Insulation Rating E
Cooling Class KNAN/KNAF
Efficiency Standard(s) Meets ANSI/IEEE Standards
Winding Material Copper
Ambient Temperature Rating 40°C
Ambient Operating Temperature Range -40°C to +40°C (-50°F to +104°F)

Technical drawings

2.5MVA Substation Power Transformer Conservator Type Oil immersed Step Down 24940V To 480V ANSI IEEE Standards

Standard Features

  • Conservator type, liquid-filled, pad-mounted substation transformer
  • Three-phase radial feed, supports step-up and step-down use
  • Durable coated steel tank and cabinet with weatherproof epoxy finish
  • Analog gauges for oil level, temperature, and pressure monitoring
  • Automatic pressure relief, Buchholz relay, and gas sampler included
  • Forced air cooling with fan controls (auto/off/manual)
  • 5-position off-load tap changer on high voltage side, 2.5% steps
  • Live front primary and secondary connections with NEMA H-Spade terminals
  • Copper windings and grain-oriented steel core
  • Tamper-proof, pad-lockable doors with hot stick included
  • NEMA 3R weatherproof wiring cabinet, seismic rated
  • Designed for -40°C to +40°C operation, low noise (65 dBA)
  • Meets ANSI/IEEE, DOE, CSA, ASTM standards for safety and efficiency

2.5MVA Substation Power Transformer Conservator Type Oil immersed Step Down 24940V To 480V ANSI IEEE Standards 2.5MVA Substation Power Transformer Conservator Type Oil immersed Step Down 24940V To 480V ANSI IEEE Standards

2.5MVA Substation Power Transformer Conservator Type Oil immersed Step Down 24940V To 480V ANSI IEEE Standards 2.5MVA Substation Power Transformer Conservator Type Oil immersed Step Down 24940V To 480V ANSI IEEE Standards 2.5MVA Substation Power Transformer Conservator Type Oil immersed Step Down 24940V To 480V ANSI IEEE Standards

Factory Tests

  • Winding Resistance Test
  • Insulation Resistance Test
  • Voltage Ratio Error Test
  • Short-circuit Impedance Test
  • No-load Loss (Wattage) Test
  • Load Loss (Wattage) Test
  • Induced Voltage Withstand Test
  • Separate Source Voltage Withstand Test
  • Pressure Integrity Test Test

PRODUCT SPECIFICATION

Rated Capacity High Voltage Low Voltage Connection Symbol Short Circuit Impendence No-load loss On-load loss Dimension Weight
(kVA) (KV) (V) (%) (W) (W) W*H*D(mm) (kg)
800 4.16KV
12.47KV
13.2KV
13.8KV
24.94KV
34.5KV
or others
208/120V
480/277V
600V
12470V
13200V
13800V
or others
Dyn1
Ynyn0
Dyn11
Dd0
Ynd11
or others
2.7
3.1
4.35
5.75
6
980 9350 1060*1500*1780 2050
1000 1160 11500 1085*1570*1800 2450
1250 1380 13900 1160*1610*1890 2900
1600 1660 16600 1190*1630*1950 3400
2000 2030 18300 1260*1700*2090 4100
2500 2450 19600 1150*2150*2250 4750
3000 3240 26500 1900*2600*2150 6500
5000 4500 27000 2500*2210*3180 9500
7500 7200 32000 3660*3100*5100 13600
10000 8500 35500 3830*2640*2216 15800

Why Choose Us

WINLEY Electric offers a complete line of liquidfilled distribution transformers that meet current applicble ANSI, IEEE, CSA, AS, DOE standards. With high voltages up to 44 kV and ratings up to 20 MVA. WINLEY has obtained UL/cUL certification (Certificate Number: UL-US-2431836-0, UL-CA-2423202-0), and can apply for UL (partner authorization) according to customer requirements.

2.5MVA Substation Power Transformer Conservator Type Oil immersed Step Down 24940V To 480V ANSI IEEE Standards

FAQ

1. Q: Can I have a sample order?

A: Yes, we welcome sample order to test and check quality.

2. Q: What is the lead time?

A: Mass production time 15-25 days.

3. Q: How long is the warranty?

A: 24 monthes from B/L. If there are any accessory problems,just provide the photos of damaged accessory,then we will provide free service. According to the number of products,we will provide easily damaged accessories for free. we also can provide technical support if you need.

4. Q: Is OEM/ODM available?

A: Yes,it is! We are manufacturer with our own R&D team, we can customize products according to customer's drawing or requirements.

Customized services:

a. Customized color and special function.

b. Customized box.

c. Print customer's logo.

d. Your other ideas about product, we can help you design and put them into production. The above customized services must be confirmed before production.

5. Q: How to control the products quality?

A: Our company owns the core technology ,all kinds of products hold CE certificate. We have professional engineers. Workers are strictly required to make products according to the drawings. Each process has technical instructors.The QC supervisors will regularly inspect the production. We will do products performance tests during production, and comprehensive quality tests when the products is completed.


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