18000kvar 35kv Arc Furnace Oil Immersed Reactor Iron Core Series Oil Immmersed Reactor, Power Reactor

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Ningbo Ville Electric Co., Ltd.

VIP   Audited Supplier 18 years
Profile Certified by SGS/BV
XKSSP-18000/33
Series Furnace Reactors
Reactive Power Compensation
Oil-Immersed Type Transformer
Power, Electronic, Steel Making Plant
Three
Multi-Winding Transformer
High Frequency
Ring
Iron Core Ractor
ville
Wooden Case
IEC
China
85
Product Description
Series Reactors are used in Electric Arc Furnaces (EAF) to provide furnace operation with longer arcs, lower currents and lower electrode consumption. Such reactors are very useful in the first melting period. With the molten scrap, the absence of the series reactor would allow higher power transfer to the EAF, reducing the tap-to-tap cycle, thus increasing productivity. This paper proposes an active series reactor based on static power converters, which has the flexibility to dynamically change its impedance value during the steel production period. Simulation of a real plant demonstrate the effectiveness of the proposition.

Through-put rating up to 160 MVAr


1.1.1 GENERAL TECHNICAL DATA 
Highest voltage     36kV50Hz
Operating voltage  33 kV±5%50Hz
Voltage for aux. drivers   380V50Hz
Control voltage    220V50Hz
Interlock voltage  220V50Hz
PLC signals      24VDC
Ambient temperature max./min.45 / - 10Deg. C
Altitude1500m
Humidity80%
1.1.2 TRANSFORMER DATA  
Operating voltage  33kV±5%
Frequency   50Hz  ±1%
Operation    Continuously
EAF transformer rated capacity    MVA (+ 20% Overload)
Rated current     2449.4 A    (+ 20% Overload)
Reactor Rated Power18 MAVR  (25.92 MVA Overload)
Reactance in normal tap1 Ω
Number and ratio of taps 6 taps:
100%-80%-60%-40%-20%-0
Insulation level
Winding:
Um:
AC:
BIL:
Full insulation
HV        
52 kV      
95 kV       
250 kV     
Protection level       IP54
Vector group         III 
System short circuit capacity   1500 MVA
Short circuit duration6 sec
Short circuit times2.5 times
Regulation method Off circuit
Type of tap changer          NLTC  Off -circuit  motor drive
Manufacturer            Shanghai Huaming / China (ZUNYI)
Model      2*ZWL III-1600/40- 6 taps
Number of taps6
Reactor Winding MaterialsCopper
Cooling TypeOFWF  







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