DDG Low Voltage High Current Transformer

Product Overview

The DDG series single-phase low-voltage high-current transformers produced by our company are mainly

used for current transformers, circuit breakers, contactors, thermal relays, switches and so on, as the power source

of temperature rise characteristic test, continuous load test and current parameter measurement test. It is

characterized by wide range of applicable loads, ability to withstand instantaneous overcuts, long-term

continuous work, fire and moisture resistance, safety and reliability, energy saving and convenient maintenance.

The input and output voltages, connection mode, adjustable tap position, winding capacity distribution, secondary

winding equipment, and outer case (according to different use environment) can be carefully designed and

manufactured according to the requirements of users.

Structure Introduction

1、The transformer is divided into single-phase transformer, EI type core dry type.

2、The core uses high quality low loss cold rolled oriented silicon steel sheet, the main material for

0.3 and 0.35 thick H18, H14, H12, Z11 high quality silicon steel sheet, we according to the customer’s

requirements and conditions of use, choose the most suitable material, so that the transformer

performance design to achieve the best!

3、Coils are all wound with H-class enameled wire, tightly and evenly hooked, the appearance of the

insulation layer is not wrapped, with excellent aesthetics, and has a better heat dissipation performance.

4、After assembling the transformer coil and iron core into one piece, it goes through the process of

pre-baking, vacuum dipping paint and hot baking curing, and adopts H grade impregnating paint to

make the transformer coil and iron core firmly combined together, which not only greatly reduces the

noise of the operation but also ensures that the transformer can be operated safely and noiselessly

under high temperature with very high heat-resistant grade.

5、Transformer core column part fasteners pro-use non-magnetic materials, to ensure that the

transformer has a higher quality factor and lower temperature to ensure that has a good filtering effect.

6、Terminal block: small power using Taiwan Mark terminal block, Japan TX terminal, beautiful

appearance, excellent pressure resistance, temperature resistance, flame retardant properties. High

power using high-quality copper.

7、Iron foot: the main use of CNC bending cold rolled plate, there are colorful (gold), blue zinc

(silver), white zinc (ivory), surface treatment (black) and other environmentally friendly plating can be

selected.

8、The transformer and domestic similar products compared with the small size, light weight,

beautiful appearance and other advantages, comparable with foreign famous brands.