in

frequency

sense

should

melt

Refining

furnace

Rated Capacity

t

1

Maximum capacity

t

1.5

Iron temperature

°C

1450~1 8 00

Melting power consumption (hot furnace, molten steel)

Kwh/t

650 ± 5% in the case of pure melting .

Melting consumption (heating furnace,molten iron)

Kwh/t

620 ± 5% in the case of pure melting .

Melting rate (steel steel)

h/t

1.4

cold

but

water

Influent flow

M3/h

≥ 55

Inlet pressure

MPa

0.3

Inlet temperature

°C

≤ 32

Backwater temperature

°C

≤ 52

Tilting method

Hydraulic tilting

whole

flow

change

Pressure

Device

Product number

ZS -type

Voltage combination

10KV/380V/380V

Secondary side Δ /Y double winding, star winding midpoint extraction

Transformer capacity

KVA

1000

Primary voltage

KV

10 ± 5% KV

Secondary voltage

V

380 × 2

Phase

Primary side 3 phase ; secondary side 6 phase connected to intermediate frequency power supply cabinet

frequency

HZ

50

Connection group

DdOY11 ( secondary side line voltage phase difference of 30° )

Short circuit impedance

≥

9%

cooling method

ONAN , cooling medium: 25thtransformer oil

Pressure regulation method

Automatic non-excitation voltage regulation ,

effectiveness

≥

98%,

Executive standard

JB/T8636-1997 "Power Converter Transformer"

Rectifier transformer

The rectifier transformer is used to reduce the primary high voltage to the input voltage suitable for the intermediate frequency power supply. The device uses a dedicated high-impedance oil-immersed self-cooling rectifier transformer, the model is ZS series. The primary voltage of the transformer is 10KV and the secondary voltage is 380V . The rectifier transformer is equipped with a gas relay and a oil temperature relay table, which can be interlocked with the high voltage cabinet. When the transformer has gas or oil temperature exceeding the standard, the high voltage input can be automatically cut off and an alarm is issued.

in

frequency

Electricity

source

rated power

KW

8 00

DC voltage

V

102 4

DC

A

877

Number of commutating pulses

pulse

12

cold

but

water

Influent flow

M3/h

≥ 25

Inlet pressure

MPa

0.25

Inlet temperature

°C

≤ 32

Backwater temperature

°C

≤ 42

IF voltage

V

2400

IF frequency

Hz

1000 can be fine-tuned

Power factor

C OSφ

≥ 0.95 for any power usage

Inverter form

Parallel inverter

noise

dB

85dB

Starting success rate

100%