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Complete set of low-voltage static var generator

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KSVG-SVG series static var generator can compensate the fundamental reactive current, and also can dynamically and timely compensate the harmonic current. The main circuit mainly includes control system, IGBT power converter and filter reactor. SVG first conducts soft start through soft start contactor and soft start resistance, and then increases the capacitor voltage to the rated value through PWM modulation. The DSP controller extracts all harmonic or reactive currents, enabling SVG to absorb or send reactive current that meets the demand, so as to achieve continuous and stepless dynamic reactive compensation.

key word:

Filter unit

Hotline:

400-0571-505

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Detailed introduction

Graphic details

Product Overview

Low voltage static var generator (SVG for short) is a parallel dynamic reactive power compensation device. By adjusting the switch of IGBT device in the inverter bridge, it can control the amplitude and phase of the voltage from DC inverter to AC inverter. The whole device is equivalent to a phase modulation power supply. By detecting the reactive power needed to be compensated in the system, it can quickly send out reactive power of equal size and opposite phase to achieve the local balance of reactive power, Keep the system running with high power factor in real time.

Product model

Product features

● Real time dynamic compensation of power factor

In the power distribution system, the asynchronous motor, induction furnace, large capacity rectifier equipment and other loads can all behave as inductive in operation, requiring a large amount of reactive power consumption, increasing the power loss on the power supply line, reducing the voltage quality, and reducing the effective utilization of power generation, transmission, and power supply equipment at the same time. KSVG-SVG can follow the change of load reactive power, realize dynamic compensation of reactive power, reduce line loss to the lower limit, and fully improve the utilization of power generation, transmission and supply equipment.

● Effectively maintain load side voltage

For the load center, because the load capacity is large and there is no large-scale reactive power supply, it is easy to cause the problem of low voltage or even voltage collapse. KSVG-SVG has the function of quickly adjusting reactive power, which can effectively maintain the load side voltage and improve the voltage stability of the power supply system.

● Improve the stability of power distribution system,

Installing KSVG-SVG devices at the midpoint of long-distance distribution lines can not only compensate the reactive power of the lines under normal conditions, but also provide timely and rapid reactive power regulation in case of system failure, damp the system oscillation, improve the stability of the transmission system, and effectively improve the transmission capacity of the lines.

● One machine with multiple functions

At the same time, it can solve many common power quality problems in the distribution network, such as three-phase imbalance, voltage flicker and power factor exceeding the standard, improve the power supply quality of the grid, ensure the safe and reliable operation of user equipment, reduce energy consumption and improve efficiency.

● Modular structure

Modular functional unit, including cabinet module (C) and wall mounted module (W). Meet various installation and layout sites. The cabinet type module is mainly installed in the low-voltage distribution cabinet or frame structure, and the wall mounted module is mainly hung on the wall of the distribution room lacking the distribution cabinet layout space.

Main technical parameters

● Rated voltage: 0.4kV/1kV

● Rated output capacity: 0~600kvar

● Reactive regulation range:+600kvar

● Response time:<5ms

● Three phase asymmetry of output voltage:<3%

● Operating efficiency: ≥ 97.5%

● Module capacity: 0~100kvar

● Power factor: - 1~1

● Altitude:<2000m

● Operating temperature: - 25 ° C~+50 ° C

● Protection grade: IP44/IP20

● Executive standard: DL/T1216-2013

Conventional cabinet size

Capacity(C)/Mvar	30	100	300	500	600
Wide(W)/mm			800/1000
High(H)/mm			2200
Deep(D)/mm			800/1000

Quick check of model selection

system voltage	Specification and model	Equipment capacity
0.4kV	KSVG-SVG-C0.4/35T	35
	KSVG-SVG-C0.4/50T	50
	KSVG-SVG-C0.4/75T	75
	KSVG-SVG-C0.4/100T	1000
	KSVG-SVG-C0.4/150T	150
	KSVG-SVG-C0.4/300T	300
	KSVG-SVG-C0.4/600T	600
1kV	KSVG-SVG-C1/35T	35
	KSVG-SVG-C1/100T	100
	KSVG-SVG-C1/300T	300
	KSVG-SVG-C1/600T	600

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