Static Var Generator (SVG)

SVG Principle

The principle of the SVG is very similar to that of Active Power Filter, as demonstrated in the picture below. When the load is generating inductive or capacitive current, it makes load current lagging or leading the voltage. SVG detects the phase angle difference and generates leading or lagging current into the grid, making the phase angle of current almost the same as that of voltage on the transformer side, which means fundamental power factor is unit.

Delta’s PQC series SVG is also capable of correcting load imbalance.

SVG Principle

SVG - Waveform and Vector


SVG Structure

Delta PQC Series SVG is also modular in design, and the Delta SVG system consists of one or several SVG modules and an optional Liquid Crystal Monitor & Control Panel (LCM). Each SVG module is an independent reactive power compensation system, and users can change the SVG rating by adding or removing SVG modules.

SVG modules and LCM panel can be embedded in Delta’s standard SVG cabinet or in a customized cabinet. There are usually breakers, cable terminals and Surge Protection Device (SPD) in the SVG cabinet.

Présentation du produit

Caractéristiques
  1. Electrical Specification
  2. Rated Voltage : AC 400V
    Input Voltage Range : AC 308V~480V
    Electric Connection : 3P3W / 3P4W
    Rated Frequency : 50(60)Hz ±10%
    Rated Capacity per Module : 50kvar
    Rated Current per Cabinet : 50~350kvar (module combination)
    Redundancy : Each module is an independent reactive compensation system
    Reactive Power Compensation Capability : Both inductive and capacitive reactive power
    Reactive Power Compensation Performance : Cosφ≥0.99 after compensation (if the SVG capacity is sufficient)
    Imbalance Correction Capability : Mitigate negative and zero sequence
    Full Response time : <20ms
    Instant Response time : <100us
    Thermal Loss : ≤3% of SVG rated capacity
    Output Current Limitation : Automatic (100% rated capacity)
    Parallel Expansion(System) : Up to 10 Racks (7 modules per cabinet)
    MTBF : >100,000 hours
  3.  
  4. Control Technology
  5. Switching Frequency : 30kHz
    Controller : DSP control
    Communication : Modbus Protocol, RS232/485
    Monitoring : PQC Monitor Software (Optional)
  6.  
  7. Physical Specification
  8. IP Grade of Cabinet : IP20, IP30 or customization
    Cooling method : Intelligent forced air cooling
    Noise Level : < 60dB(A) @1m (Module)
    Dust Filter : Optional
    Dimension : Refer to SVG Model table
    Weight : Refer to SVG Model table
  9.  
  10. Environmental Requirement
  11. Ambient Temperature : -10~50°C
    Relative Humidity : 0~95%
    Altitude : ≤1000m rated capacity, 1000~2000m(derating 1% per 100m)
  12.  
Téléchargements

Power Quality Solution (Brochure) / 2.88MB

 

Static Var Generator (SVG) 380V 50K (User Manual) / 2.36MB

 

Static Var Generator (SVG) 380V 100K (User Manual) / 2.82MB

 

centre de téléchargement

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