High Voltage Local Reactive Power Compensation Device

Deyan Electric is a professional industrial electrical supplier with integrated R&D, production and service. The High Voltage Local Reactive Power Compensation Device enhances grid stability and power quality by dynamically managing reactive power flow. It improves voltage regulation, reduces transmission losses, and increases system capacity through automatic capacitor/reactor switching or advanced power electronics

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Product Description

The High Voltage Local Reactive Power Compensation Device is a 6-10kV/50Hz indoor unit designed for three-phase AC motors. It provides localized reactive power compensation by automatically switching capacitors synchronized with motor operation - engaging at startup and disconnecting at shutdown.

The High Voltage Local Reactive Power Compensation Device offers two configurations: a simplified version with fuse-protected direct connection to motor terminals, limiting current to 90% of motor no-load current to prevent self-excitation overvoltage (typical power factor 0.9); and a vacuum contactor switching model supporting higher compensation capacity, achieving power factor above 0.95. Key benefits of the TBBJ High-Voltage Local Reactive Power Compensation Device include reduced power losses, improved voltage quality, and enhanced motor starting performance, delivering superior compensation compared to centralized systems.

Product Parameter ( Specification )

Parameter Category	Specification
Electrical Ratings
Rated Voltage	6 kV, 10 kV
Rated Frequency	50 Hz / 60 Hz
Compensation Capacity Range	100 ~ 5000 kvar (Customizable)
Performance
Target Power Factor (after compensation)	≥ 0.95
Response Time	Contactor-based: < 100 ms TSC (Thyristor-based): < 20 ms
Switching Method	Vacuum Contactor or Thyristor Switch Module (TSC)
Protection & Control
Control Principle	Automatic switching synchronized with motor operation; reactive power/power factor closed-loop control.
Standard Protections	Overcurrent, Overvoltage, Undervoltage, Differential, Overtemperature, Short Circuit
Key Feature	Prevents self-excitation overvoltage after motor shutdown.
Communication	Optional RS485/MODBUS-RTU or Ethernet/IP
Standards & Environment
Design Standard	GB/T, IEC 62271
Installation	Indoor
Ambient Temperature	-10 °C to +45 °C
Altitude	≤ 1000 m (Derating above)

Product Feature And Application

Precise Localized Compensation

Automatic Synchronized Operation

Dual Configuration Flexibility

Self-Excitation Prevention

Significant Energy Optimization

Application Sites

◇ Compact secondary substations

◇ Small industrial and mining enterprises

◇ Wind power plants

◇ Hotels, shopping malls, office buildings, commercial centers, etc.

◇ C- Load switch unit

◇ D-Direct cable connection unit

◇ De- Direct cable connection unit with grounding switch

◇ F- Load switch-fuse combination unit

◇ V- Vacuum circuit breaker unit

High Voltage Local Reactive Power Compensation Device

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Contact Info

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Address

No.60, Binhai South Second Road, Economic Development Zone, Yueqing City, Zhejiang Province, China
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Tel

+86-15088597733
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Email

sales@deyanele.com

For inquiries about High Voltage Switchgear, Medium Voltage Switchgear, Low Voltage Switchgear or price list, please leave your email to us and we will be in touch within 24 hours.