in
frequency
sense
should
melt
Refining
furnace
|
Rated Capacity
|
t
|
0.5
|
|||
Maximum capacity
|
t
|
1
|
||||
Iron temperature
|
°C
|
1450~1 8 00
|
||||
Melting power consumption (hot furnace, molten steel)
|
Kwh/t
|
570 ± 5% in the case of pure melting .
|
||||
Melting consumption (heating furnace,molten iron)
|
Kwh/t
|
560 ± 5% in the case of pure melting .
|
||||
Melting rate (steel steel)
|
h/t
|
0.9
|
||||
cold
but
water
|
Influent flow
|
M3/h
|
≥ 40
|
|||
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
|
1000kva(two shared)
|
||||
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
|
5 00
|
|||
DC voltage
|
V
|
102 4
|
||||
DC
|
A
|
488
|
||||
Number of commutating pulses
|
pulse
|
12
|
||||
cold
but
water
|
Influent flow
|
M3/h
|
≥ 15
|
|||
Inlet pressure
|
MPa
|
0.25
|
||||
Inlet temperature
|
°C
|
≤ 32
|
||||
Backwater temperature
|
°C
|
≤ 42
|
||||
IF voltage
|
V
|
2400
|
||||
IF frequency
|
Hz
|
8 00 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%
|
||||
|
|
|
||||
|
|
|
||||
|
|
|
||||
|
|
|
|