Induction Furnace Transformer

The Induction furnace transformer overload capacity is large, and the transformer has a short-term overload capacity of 20% , which will not affect the life of the transformer due to general temperature rise.
It has high mechanical strength and can withstand mechanical stress caused by inrush current and short-circuit current.

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Product Details

1. Product Introduction

(1)The transformation ratio is large, the primary voltage is high and the secondary voltage is low.

(2)The secondary current is large, up to several thousands to millions of amperes.

(3)The secondary voltage can be adjusted to meet the needs of the smelting process.

(4)The transformer structure is relatively solid, the winding resistance mechanical strength and insulation strength have been strengthened, and the cooling conditions are also better, so the overload capacity is larger, can withstand the short circuit current impact of frequent melting period, will not cause coil looseness or significant heating of the transformer.


2.Products Specification

Arc furnace transformer

With series reactor

Transformer rated power (kVA)

Primary voltage(kV)

Secondary voltage(V)

Rated secondary current(A)

Type of taping

Connection symbol

Short-circuit impedance(%)

Series reactor

No-load loss(kW)

On-load loss(kW)

No-load current (%)

Rated power (kVA)

Reactance voltage drop(%)

630

6
6.3
10
10.5
11

1819

200,170,116,98

OCTC

Dd0
Dy11

8-9
7-8

120

19

2.4

8.6

3

800

2609

150

2.7

11

2.9

1000

2887

190

3.1

14

2.9

1250

3437

210,180,121,104

200

16

3.6

17.5

2.6

1600

4399

260

4.1

22

2.5

2000

5499

320

4.6

27

2.4

2500

6561

220,190,127,110

280

11.2

5.2

32

2.3

3150

8267

350

6

39

2.2

4000

9623

240,210,139,121

340

8.5

7.6

46

2.1

5000

12028

360

9.4

54

2

6300

13900

260,240,210,139

430

5.7

11.8

63

1.9

8000

17765

460

15

74

1.8


3.Product feature and application

微信截图_20200109105821


4.Product qualification

图片2


图片3



With a professional R & D team, experienced workers, modernized working plant and equipment, the high quality product’s designing and manufacturing can be guaranteed well.


5. Deliver-shipping and serving

微信截图_20200109132810


Delivery time

Normally, if with MR or ABB tap changer, the max. Deliver time about 120 days after technical drawings confirmed, if with Chinese brand tap changer, max. 90 days for any capacity and voltage range transformer.

Packing

The transformer main body usually in nude, and the accessories are packed in plywood case with steel structure, it’s worthy for ocean transportation.

Transportation

Usually, the total weight under 45 tons, it’s available by kinds of container, above 45 tons, it’s available by bulk ship.

After service

Usually, we will dispatch experienced technicians to client’s installation site for the supervision service within 15 working days after getting official information.


6. FAQ

1.What is the difference between electric furnace transformer and ordinary transformer

a. The load working capacity is different.

b. The ability to withstand short-circuit faults is different.

c. It is also stipulated that the transformer of the power supply system can adjust the working voltage during operation.


2.What are the transformation methods of electric furnace transformer

a.Immediate voltage transformation method: Find the tap to connect the tap power switch on the original winding resistance of the transformer. In the middle of the three-phase power on the primary side, △ -Y can be used to maintain the adjustment of the working voltage on the secondary side.

b.Short-circuit transformer method: When the primary winding has a current flow, the secondary winding causes an induced current, which circulates the goods in the tank, and then transfers the heat to melt the metal material.


3.What are the structural characteristics of electric furnace transformers?

The transformer iron core of the electric furnace transformer uses high-quality oriented silicon steel sheet, automatic cutting line production and processing, 45-degree full bevel joint, no punching machine, and weft-free laminated glass adhesive tape bundling process. The electromagnetic coil uses the latest international news as the main longitudinal insulation layer structure. The winding structure and insulation layer are effectively selected to ensure that the winding has sufficient impact toughness. It has the characteristics of strong ability to bear short circuit faults, strong load capacity, high efficiency, low loss, safety, and reliability.


7.Latest News

Zhejiang electric power has built the country's first fully perceptive intelligent power distribution room, which is the 10 kv power distribution room of the new pavilion at the light of the Internet expo.

Near the distribution room, biometrics access control, intelligent monitoring, intelligent inspection robot, wireless environment sensing terminal, ozone sensor and other intelligent sensing devices can be seen everywhere.

The power distribution room is integrated with a multi-dimension object perception system, which is combined with the edge object association agent device. The wireless multi-hop AD hoc network technology is adopted. The newly developed enabling platform is utilized to realize holographic perception, self-assisted research judgment and accurate control.



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