Product Introduction

VOUCHIVAN delivered 4 units of 800 KVA air cooled dry type transformers in 2012. the rated power of the transformer is 800 KVA. the primary voltage of the transformer is 6.6 KV and secondary voltage is 0.55 KV. This is a Class F Transformer，the average temperature rise of transformer is 100K. Our 800 KVA Dry Type Transformer was designed with advanced technology and adopts high quality material and components which result in reliable quality and long operation time.

We ensure that each one of our delivered units has undergone rigorous full acceptance testing. We provide one-package service from consulting, quoting, manufacturing, installation, commissioning, training to after sale services, our products are now operating in more than 50 counties in the world. We aim to be your most reliable supplier as well as your best partner in business!

Advantages

Fire resistant /Self-extinguishing(F1)

Environmental class(E2) and climatic class (C2)

From IP00-IP56 enclosure with AN, AF, ANAF or AFWF cooling

Maintenance free

Environmental friendly ,＞90% of material recyclable

Temperature control system

Built-in PT100 probes in 3 phase windings to detect the real-time temperature of windings and cycle display them in the digital screen.

Open circuit alarm and fault self-check alarm display and signal output.

3 stages automatically actions while the temperature reached to the set value, 1st stage the cooling fans start automatically, 2nd stage high temperature alarm,3rd stage over temperature trip.

Fans manual/auto control switch, timing start/stop, history data output.

4-20mA current output

RS485 Modbus communication protocol

Environment temperature measurement

Core temperature measurement

Scope of Supply

Product: resin cast dry type transformer

Voltage level: up to 35KV

Rating level: up to 20MVA

The transformer can be designed according to customer’s requirements

Technical Data Sheet

800 KVA Dry Type Transformer specifications and data sheet

General Arrangement Drawing

Finished 800 KVA 6.6/0.55KV Transformer

How to Check for Dust Accumulation?

1、Visually inspect cover louvers, screens, and internal coil cooling ducts for dust build-up. If found, wait until the transformer is deenergized to remove any panels

2、Once deenergized, vacuum out as much of the dust as possible

3、Clean the transformer with a brush or lint-free rag. Avoid detergents or cleaning products as they may accumulate future dust and accelerate the deterioration of your transformer

4、In inaccessible areas, blow dry air into the unit

Transformer packing

The 800 KVA dry type transformers were packed with welded iron to keep the strength of the frame and covered with ply wood boards for sea transportation.

Tests for dry-type transformers:

1、Measurement of winding resistance

2、Measurement of voltage ratio

3、Checking of phase displacement

4、Measurement of short-circuit impedance and load loss

5、Measurement of no-load loss and current

6、Dielectric routine tests

7、Insulation test and functional verification of accessories

8、Tests tap changers, where appropriate

9、Auxiliary wiring insulation test

10、Check of the ratio and polarity of built-in transformers

11、Measurement of partial discharges

FAQ

1. What is the scope of your supply?

We can supply distribution transformers up to 5000KVA 35KV, power transformers up to 200 MVA 230KV, dry type transformers up to 10 MVA 35KV, and other special transformers such as rectifier transformer and furnace transformers.

2. What service can you provide?

We can provide design, manufacturing, delivery, installation, commissioning, after-sale service.

3. Can I visit your company?

You are welcomed to visit our company at any time, contact us to get start the journey.