KLD-SVG Series

Static Var Generator

KLD-SVG series static var generators can quickly and bi-directionally regulate the reactive power of the AC power grid, and have very fast and accurate compensation capability for the impulse reactive power.

PRODUCT OVERVIEW

With the development of power electronics technology, a variety of non-linear and time-varying electronic equipment are used on a large scale and the requirements for the power supply system are getting higher and higher, thus the traditional commonly used shunt capacitor compensation mode has been unable to meet the demands of controlling some of the distribution system with impulse loads (such as welding machines, rolling mills, Banbury mixers, etc.). As one of the core equipment and technology of FACTS (Flexible Alternating Current Transmission System), the Static Reactive Generator SVG is used in the distribution system to realize continuous and rapid reactive power compensation from inductive to capacitive, effectively suppressing voltage fluctuation and system oscillation, improving three-phase imbalance of loads and enhancing system stability. It is the optimal solution in the field of reactive power control.

KLD-SVG series low-voltage static var generator provides a new type of compensation mode that makes breakthrough of the traditional capacitor and electric motor reactive power compensation theory. It integrates power electronic technology, computer technology and modern control technology, and can quickly regulate the reactive power of AC power grid. It also has very effective capability for regulating the reactive power impact, static reactive power and reactive power in under-voltage conditions, and has the functions of voltage adjustment and harmonic suppression, which is an ideal choice for stabilizing the voltage and improving the power factor. At the same time, it gains significant benefits from energy saving and consumption reduction, and capacity increase of the power supply equipments.

DYNAMIC FAST COMPENSATION CAPABILITY

Based on electronic inverter technology, KLD-SVG series can quickly respond to the reactive power, with a response time of less than 10ms.

It adopts gate turn-off power electronic component (IGBT) to form a self-commutated bridge circuit, and adjusts the amplitude and phase of the output voltage on the AC side through IGBT to quickly absorb or generate the required reactive power, realizing the purpose of rapid dynamic regulation of reactive power.

BIDIRECTIONAL REACTIVE POWER
COMPENSATION FUNCTION

SVG can generate the corresponding compensation current according to the inductive or capacitive load, and compensate the power factor of the system to 0.99.

LOW-NOISE HEAT DISSIPATION DESIGN

The module uses the fan with low noise, which not only ensures the effective dissipation of heat inside the module, but also reduces the noise of the whole equipment.

Designed in the form of internal layered structure, each module is equipped with an independent intelligent cooling system to reduce the operating temperature of the equipment.The noise of the whole equipment is less than or equal to 60dB

Technical Parameters

Input
Operating voltage 200~690V
Operating frequency 50/60±5%Hz
Wiring mode Three-phase three-wire、three-phase four-wire
Performance indicators
Power factor ＞0.99，configurable
Reactive power compensation mode Dynamic continuous automatic regulation
Full response time ＜10ms
Equipment efficiency Up to97%
*Harmonic filtering Supports low-order (3rd, 5th, 7th, 9th, 11st, 13th) harmonic compensation
IGBT Frequency 20kHz
Overload protection Automatic current limiting at 100% of rated output
Compensation of three-phase unbalanced loads Provided
*Output harmonic current ≤50% of rated power
Mean time between failures MTBF≥150000 hours
Self loss ＜2.5%
Interface module
Display interface New full-color display, real-time display of system harmonics and harmonic current output by equipment
Operation interface LCD intelligent operation unit
Display language Simplified Chinese/English
Communication interface RS485、Modbus
Ambient operation
Ambient temperature -10℃~+55℃
Storage temperature -40℃~+75℃
Relative humidity Max. 95%RH (no condesing)
Altitude ≤1500 meters; 1500-4000 merers, the power is reduced by 1% for every 100m increase
Selection table

Model Compensation capacity(kvar) Rated voltage（V） type Cooling mode
Three-phase three-wire system
KLD-SVG-50-3L-400V-HD 50 400 Wall-mounted, with screen Forced air-cooling
KLD-SVG-50-3L-400V-RD 50 400 Rack-mounted, with screen Forced air-cooling
KLD-SVG-100-3L-400V-RD 100 400 Rack-mounted, with screen Forced air-cooling
KLD-SVG-150-3L-400V-RD 150 400 Rack-mounted, with screen Forced air-cooling
KLD-SVG-50-3L-690V-RC 50 690 Rack-mounted, centralized monitoring and control Forced air-cooling
KLD-SVG-100-3L-690V-RC 100 690 Rack-mounted, centralized monitoring and control Forced air-cooling
three-phase our-wire system
KLD-SVG-50-4L-400V-HD 50 400 Wall-mounted、with screen Forced air-cooling
KLD-SVG-50-4L-400V-RD 50 400 Rack-mounted, with screen Forced air-cooling
KLD-SVG-100-4L-400V-RD 100 400 Rack-mounted, with screen Forced air-cooling
KLD-SVG-150-4L-400V-RD 150 400 Rack-mounted, with screen Forced air-cooling
KLD-SVG-50-4L-690V-RC 50 690 Rack-mounted, centralized monitoring and control Forced air-cooling
KLD-SVG-100-4L-690V-RC 100 690 Rack-mounted, centralized monitoring and control Forced air-cooling

Technical Parameters


  • Operating voltage：200~690V

    Operating frequency：50/60±5%Hz

    Wiring mode：hree-phase three-wire, three-phase four-wire

  • Power factor：＞0.99，configurable

    Reactive power compensation mode：Dynamic continuous automatic regulation

    Full response time：＜10ms

    Equipment efficiency：Up to97%

    *Harmonic filtering：Supports low-order (3rd, 5th, 7th, 9th, 11st, 13th) harmonic compensation

    IGBT frequency：20kHz

    Overload protection：Automatic current limiting at 100% of rated output

    Compensation of three-phase unbalanced loads：Supported

    *Output harmonic current：≤50% of rated power

    Mean time between failures：MTBF≥150000 hours

    Self loss：＜2.5%

  • Display interface：New full-color display, real-time display of system harmonics and harmonic current output by equipment

    Operation interface：LCD intelligent operation unit

    Display language：Simplified Chinese/English

    Communication interface：RS485、Modbus

  • >Ambient temperature：-10℃~+55℃

    Storage temperature：-40℃~+75℃

    Relative humidity：Max. 95%RH (no condesing)

    Altitude：≤1500 meters; 1500-4000 merers, the power is reduced by 1% for every 100m increase

Selection table


Three-phase three-wire system

  • Compensation capacity（kvar）：50

    Rated voltage（V）：400

    Type：Wall-mounted, with screen

    Cooling mode：Forced air-cooling

  • Compensation capacity（kvar）：50

    Rated voltage（V）：400

    Type：Rack-mounted, with screen

    Cooling mode：Forced air-cooling

  • Compensation capacity（kvar）：100

    Rated voltage（V）：400

    Type：Rack-mounted, with screen

    Cooling mode：Forced air-cooling

Three-phase four-wire system

  • Compensation capacity（kvar）：150

    Rated voltage（V）：400

    Type：Rack-mounted, with screen

    Cooling mode：Forced air-cooling

  • Compensation capacity（kvar）：50

    Rated voltage（V）：690

    Type：Rack-mounted, centralized monitoring and control

    Cooling mode：Forced air-cooling

  • Compensation capacity（kvar）：100

    Rated voltage（V）：690

    Type：Rack-mounted, centralized monitoring and control

    Cooling mode：Forced air-cooling

Three-phase four-wire system

  • Compensation capacity（kvar）：50

    Rated voltage（V）：400

    Type：Wall-mounted, with screen

    Cooling mode：Forced air-cooling

  • Compensation capacity（kvar）：50

    Rated voltage（V）：400

    Type：Rack-mounted, with screen

    Cooling mode：Forced air-cooling

  • >Compensation capacity（kvar）：100

    Rated voltage（V）：400

    Type：Rack-mounted, with screen

    Cooling mode：Forced air-cooling

  • Compensation capacity（kvar）：150

    Rated voltage（V）：400

    Type：Rack-mounted, with screen

    Cooling mode：Forced air-cooling

  • Compensation capacity（kvar）：50

    Rated voltage（V）：690

    Type：Rack-mounted, centralized monitoring and control

    Cooling mode：Forced air-cooling

  • Compensation capacity（kvar）：100

    Rated voltage（V）：690

    Type：Rack-mounted, centralized monitoring and control

    Cooling mode：Forced air-cooling

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