Three Phase Pad Mounted Transformer 3000Kva 24940V To 4160Y/2400 UL Certified

The three phase pad mounted transformers we produce have obtained UL certification, with capacities ranging from 30 to 5500kVA and voltages up to 34.5kV. Our products are exported to North America the Philippines and other places in large quantities.

Main data

Standard Features

• 60 Hz operation.
• 65°C average winding rise.
• Radial & loop feed arrangements.
• Dead and live front type of HV terminals.
• HV BIL 45 – 150 kV (Dead Front) 200 kV (Live Front).
• LV BIL 30 – 60 kV.
• Three-point latching of low-voltage door.
• High-voltage door, which can be opened only after
the low-voltage door is opened.
• Rigid steel partition.
• Transformer tank welded from cover to base.
• Permanent nameplate.
• One-inch NPT pipe cap filling provision.
• ANSI tank ground pads.
• One-inch drain valve and sampler.
• Automatic pressure-relief valve (35 SCFM).
• Tap changer with (2) 2.5% full capacity taps above
and below nominal.
• One 10”x18” (or 14”x25”) hand hole in transformer
tank cover.
• Painted olive-green color (Munsell 7GY 3.29/1.5).
• Designed, manufactured and tested in accordance
with the latest ANSI standards

Technical drawings

Product structure

1)The transformer part and the control cabinet part of the United States variation, of which the transformer part is a fully sealed structure, and the insulating oil can be two types of high ignition point oil or ordinary oil.
2)The control cabinet is divided into a high-voltage room and a low-voltage room.
3)The high-voltage room is equipped with: high-voltage cable plug, lightning arrester, load switch operating handle, non-excitation tap switch handle, plug-in fuse, pressure release valve, thermometer, pressure gauge, oil Position gauges, oil filling plugs, oil drain valves, etc., load switches, off-excitation tap changers, plug-in fuses, etc. are all immersed in transformer oil together with the transformer core. The high-voltage cable and the transformer are connected by elbow cable connectors.
4)The low-voltage side can be installed with air circuit breakers, current transformers, as well as electric energy meters, ammeters and voltmeters, and output circuits and capacitance compensation devices can be configured according to user needs.

Specification

Applicable Standards

IEEE Std C 57.12.00 – Standard for Standard General Requirements for Liquid-Immersed Distribution, Power, and Regulating Transformers.
IEEE Std C 57.12.28 – Pad-Mounted Equipment - Enclosure Integrity.
IEEE Std C 57.12.34 – Standard Requirements for Pad-Mounted, Compartmental-Type, Self-Cooled, Three-Phase Distribution Transformers
IEEE Std C 57.12.90– Standard Test Code for Liquid-Immersed Distribution, Power, and Regulating Transformers and IEEE Guide for Short-Circuit Testing of Distribution and Power Transformers.
IEEE Std C 57.12.91 – Guide for Loading Mineral-Oil-Immersed Transformers.

Production process

UL /cUL Certification

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.