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UL Certified 500KVA Three Phase Dry Type Transformer C Class Low Voltage 480V To 220V Non-Encapsulated

Categories Three Phase Dry Type Transformer
Brand Name: WINLEY
Model Number: SG-500KVA
Certification: ISO,CE,UL/cUL
Place of Origin: CHINA
MOQ: 1unit
Price: $500~$60000/Unit
Payment Terms: T/T
Supply Ability: 1000units/month
Delivery Time: 10-15days
Packaging Details: Plywood case
Name: Three-phase Dry type transformer
Rated power: 1500KVA
Insulation class: C
Primary Voltage: 480Y/277V
Secondary Voltage: 380Y/220V
Temperature rise: <150℃
Enclosure Material: NEMA 3R
UL certification number: UL-US-2329418-0
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UL Certified 500KVA Three Phase Dry Type Transformer C Class Low Voltage 480V To 220V Non-Encapsulated

UL Certified 500KVA Three Phase Dry Type Transformer C Class Low Voltage 480V To 220V Non-Encapsulated


Performance Characteristic


Transformers can have an 80-degree, 115-degree or 150-degree C-rise. The most efficient transformers generally have the lowest C-rises and operate the coolest. Units with low C-rises are essential for applications where optimal performance and efficiency are crucial, including hospitals, schools, alternative energy and manufacturing facilities.



The main insulation of the C-class insulation three-phase non-encapsulated dry-type transformer is made of C-class (heat-resistant temperature 220℃) Nomex paper, which is cured by VPI vacuum pressure impregnation and high temperature. It has extremely high flame retardancy, heat dissipation performance and overload capacity. It is safe, reliable, environmentally friendly and energy-saving. It is suitable for environments with high fire protection requirements, small sites, and large load fluctuations.







Specification

No.Description
1ModelSG-500KVA
2NameThree-phase Dry type transformer
3Rated powerSG-500KVA
4Input voltage
480Y/277V
5Input current601.4A
6Output voltage
380Y/220V
7Output current760A
8PhaseThree
9Frequency60Hz
10Insulation classC
11Withstand voltage test

Primary to secondary 2500V/60S

Primary to grounding 2500V/60S

Secondary to grounding 2500V/60S

12Insulation resistance

Primary to secondary >100MΩ

Primary to grounding >100MΩ

Secondary to grounding >100MΩ

13Induced withstand voltage125Hz/Double voltage/min
14Grounding resistance25A<100mΩ
15Cooling methodAir cooling

Drawing



WINLEY‘s C class insulation transformer advantage


  • Enhanced Safety: Dry type transformers featuring Nomex insulation eliminate the risk of flammable materials, such as fluids and combustible components, providing a safer operating environment.
  • Reduced Transmission Losses: With superior insulation, these transformers can be placed closer to their loads, minimizing low-voltage line lengths and consequently lowering transmission losses.
  • Cost-Effectiveness: Designed to withstand temperature rises up to 150 degrees Celsius, transformers with premium-grade insulation require less conductor and steel. This reduction in material requirements leads to lower overall costs and simplifies installation.
  • Improved Harmonic Loading: Dry type transformers with Nomex insulation have enhanced capabilities for managing high temperatures caused by heavy harmonic loads, making them suitable for demanding applications.

Specification


Model
(kva)
Primary VoltageSecondary VoltageCoupling group tabShape dimensionMounting dimensionK*JThe box dimension
BmaxDmax±5EmaxAC±5BmaxDmax±5Emax
SG-10KVA660
400
380
200
380
220
110
36
Yyn0
Y/d
D/y
D/d
36018030521514010*20450360480
SG-15KVA36020033521515510*20450360480
SG-20KVA42021035025017010*20490400540
SG-30KVA42023038025019010*20490400540
SG-50KVA68035055042022010*20800510840
SG-80KVA75040062048025010*20850510840
SG-100KVA78042065050025010*20900550890
SG-300KVA18095185100756*14
SG-500KVA18095185100756*14
SG-1000KVA180110185100906*14
SG-2000KVA2301252051301009*16
SG-3000KVA2401452151301209*16
SG-4000KVA2401552351301309*16
SG-5000KVA32016025518011510*20400330480
SG-6000KVA30016528018014010*20400330480


Production process





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: Sample time 3-7 days, we usually ship by DHL, UPS, FedEx,etc. Mass production time 7-25 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(MOQ:≥10pcs).

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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