Electric Arc Furnace Serial Furnace Reactor 30mva Three Phase Oil Immersed Iron Core Serial Reactor

Electric Arc Furnace Serial Furnace Reactor 30mva Three Phase Oil Immersed Iron Core Serial Reactor image

Basic Info.

Model NO.

XKSSP-35000/33

Usage

Single-phase Transformer, Rectifier Transformer, Combined Transformer, Power Transformer, Distribution Transformer, Furnace Transformer

Frequency Characteristics

Power Frequency

Shape of Core

Brand

Ville Enterprise

Type

Reactor

Capacity

150mva

Standard

IEC

Shell

Double Wall

Transport Package

Wooden Box

Specification

As per drawing

Trademark

VILLE

Origin

China

HS Code

Production Capacity

5000pieces/Year

Product Description

Specialized in the design and construction of industrial transformers

*• Through-put rating up to 150 MVAr

In electric arc furnaces, which use long arcs and high values of secondary voltage, it is often helpful to introduce an additional reactor
with the purpose of:

Arc stability and power regulation
Optimisation electrodes consumption
Limitation of current during smelting process
Reduction of flicker on the feeding network.

The reactors are series connected with the furnace transformers and have some regulation taps (for the reactance regulation) operated
with either an onload tap changer (OLTC), for maximum flexibility, or with a de-energized tap changer (DETC).

The reactor can be assembled:

Inside the main transformer tank
Entirely separated from the transformer
Located next to the transformer (On Board Reactor).

In the OBR (On Board Reactor) solution, the reactor and the transformer are linked by a removable cable duct.

Extends equipment lifecycle due to reduced unstable arc furnace currents
High mechanical strength withstands elevated forces caused by elevated switching currents
Tap adjustment is possible
Inductance of the reactor is frequently variable and requires large adjustment steps
Conservative temperature rise ensures extended service life
Surface treatment protects against UV radiation and pollution
Environmentally friendly
Maintenance-free design

Auxillary voltage for power circuits	220 Vac, 50 Hz , 3 phase
Control Voltage	24 Vdc
Nominal Voltage	34.5 KV 50 Hz, 3 phase
Rated capacity	51.840 MVAr
Rated current	2400 A
X ( Ω/phase )	3Ω
Insulation level ( 1U,1V,1W )	95/250 KV BIL
Vector Group	iii

Maximum allowable temperature rise for oil	60 K
Maximum allowable temperature rise for winding	65 K
Number of positions	7 ( pos1: 0 Ω, po2: 0.5 Ω, pos3: 1Ω , pos4: 1.5 Ω, pos5: 2 Ω, pos6: 2.5 Ω, pos7: 3 Ω,
Tap changer mechanism	On-load tap changer, MR brand
Oil filter equipment for OLTC	All diverter switch compartments oil will be circulated through a filter circuit equipped with filter clogged electrical signal.
Shell and tube heat exchangers	double wall type, quantity two , each with %100 cooling capacity. Inlet water temperature: 35 C. 2 oil circulation pumps. Temperature and flow indicators both for oil and water circuits
Reactor condition monitoring	Oil level indicators for expansion tanks, oil and winding temparature indicators.
Reactor protection	Bucholz relay with relevant alarm and trip contact connections. Pressure relief valve for tank over pressure protection, equipped with trip contact.

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