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1000V Low Voltage Compensation System For Submerged Arc Furnace

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1000V Low Voltage Compensation System For Submerged Arc Furnace

Brand Name : Hongxin

Place of Origin : China

Price : Negotiable

Payment Terms : T/T,Western Union,D/P,D/A,L/C

Rated Voltage : ≤1000V (or 1140V)

Frequency : ≤1000 Hz

Dynamic Response Time : Semiconductor switching <1s

Insulation Material Temperature Resistance : 130°C

Short-circuit Withstand Current : >15kA

Outdoor Type Ambient Temperature : -25°C~40°C

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SAF Low Voltage Compensation System

Low voltage compensation systems are mainly used in 0.4kV and 0.69kV distribution systems, suitable for refining furnaces, auxiliary equipment, and workshop distribution. National standard GB/T 15576-2020 specifies technical requirements for low-voltage reactive power compensation assemblies.
I. General Parameters of Low Voltage Compensation Device

Parameter Specification
Rated Voltage≤1000V (or 1140V)
Frequency≤1000 Hz
Dynamic Response TimeSemiconductor switching ≤1s
Filtering Function RequirementDevices with filtering function must reduce system harmonic content by more than 50%
Capacitor Inrush CurrentNot exceed 1.3 times rated value
Insulation Material Temperature Resistance130℃
Short-circuit Withstand Current≥15kA (for devices above 150kvar)
Outdoor Type Ambient Temperature-25℃~40℃

II. Low Voltage Reactive Power Compensation Controller Parameters

Parameter Specification
Voltage Level400V / 660V
Output Channels12, 16, 18
Sampling ParameterFundamental power factor/Fundamental reactive power
Control ModeCyclic switching/Coded switching
Mixed Compensation Schemes6 types
Switching Coding Modes12 types
Harmonic Environment AdaptabilityReliable operation under high harmonics and non-sinusoidal current


III. Comparison of High and Low Voltage Compensation Systems

Comparison ItemHigh Voltage Compensation SystemLow Voltage Compensation System
Voltage Level6kV, 10kV, 35kV0.4kV, 0.69kV
Applicable StandardElectric power industry standardsGB/T 15576-2020
Main ApplicationLarge arc furnaces, submerged arc furnaces, rolling mill busbarsRefining furnaces, auxiliary equipment, workshop power distribution
Compensation ModeMainly centralized compensationCentralized compensation, group compensation, end compensation
Dynamic Response TimeSVC: 10-20ms, SVG: <5msSemiconductor switch ≤1s
Equipment CompositionHV switchgear + capacitor bank + reactor + discharge coil + arresterLV cabinet + controller + switching switch + capacitor + reactor
Installation LocationHV busbar side of substationLV side of distribution room or near the electrical equipment
CostHigher (including HV switchgear)Relatively lower


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