Complete Sets Of Low Voltage Capacitors

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The KSVG‑TSC series low-voltage capacitor bank is composed of dry-type capacitors, tuned reactors, capacitor-specific switching devices, primary fuses, molded-case circuit breakers, power factor controllers, and other components. It is connected in parallel to AC three-phase power systems at 1 kV and below, serving as a reactive power compensation device to improve the power factor, regulate network voltage, mitigate harmonic distortion, and reduce line losses.

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Product Overview

The KSVG‑TSC series low-voltage capacitor bank is composed of dry-type capacitors, tuned reactors, capacitor-specific switching devices, primary fuses, molded-case circuit breakers, power factor controllers, and other components. It is connected in parallel to three-phase AC power systems at 1 kV and below, serving as a reactive power compensation device to improve the power factor, regulate network voltage, mitigate harmonic distortion, and reduce line losses.

Product model

Main Equipment Composition

● Fuse switch or molded-case circuit breaker
Each KSVG‑TSC reactive power compensation cabinet functions as an independent unit and is equipped with a main switch that connects the compensation equipment to the busbar, while also providing protection against short-circuit faults within the cabinet.
●Overvoltage protection component
Each reactive power compensation cabinet consists of several reactive power compensation branches. These branches include protective devices, switching switches, reactors, and power capacitors. To mitigate the impact of overvoltage on the equipment inside the cabinet and prevent damage to its components, common protective devices used are surge arresters, surge protectors, and varistors.
● Switching device
The function of a switching device is to connect or disconnect the capacitors and reactors in the compensation branch from the power system. Connecting these components to the system is commonly referred to as capacitor switching-in, while disconnecting them is known as capacitor switching-out. When a capacitor is switched in, inrush current invariably occurs—this is an inherent characteristic of capacitor switching. Consequently, switching devices also serve to mitigate this inrush current. Commonly used products include: the Konstanz KS/TSC thyristor‑based switch, the KS/JK contactor dedicated to capacitors, and the KS/FK composite switch.
● Tuning Reactor
The primary parameter of a reactor is its reactance rate. For reactors designed to suppress harmonics, the reactance rate is determined based on the dominant harmonic order in the system. For example, to mitigate the effects of the 5th and 7th harmonics, a typical reactance rate of 7% is used; to address the 3rd harmonic, a reactance rate of 14% is commonly employed. As an essential component within reactive power compensation cabinets, Konstanz’s “KD-LK Reactors” serve two main functions: suppressing capacitor inrush currents and attenuating harmonics.
● Low-voltage capacitor
Among the main components housed in a reactive power compensation cabinet, the presence of capacitors often leads to the cabinet being referred to as a “capacitor cabinet.” In low-voltage systems, the capacitors commonly used are self‑healing types, manufactured with metallized film. Depending on the internal filling material, capacitors can be classified into dry‑type and oil‑impregnated types. Oil‑impregnated capacitors use a liquid filler; however, liquids pose risks of leakage and are flammable. Konstanz’s “KD‑H capacitors,” by contrast, employ a resin‑based filler and an inert gas, offering safer and more stable operation.
● Power Factor Controller
The Konstanz “KZD-111 Power Factor Controller” serves as the control center of the reactive power compensation cabinet and is the core component for managing the automatic switching of capacitors (compensation branches). The power factor controller monitors the system’s reactive power deficit or the power factor target, thereby controlling the automatic connection and disconnection of capacitors (compensation branches) to adjust the power factor within the acceptable range.

Main Technical Parameters

Rated voltage	0.4, 0.66, 0.69 kV (customizable for special voltages)
Rated frequency	50 Hz, 60 Hz
Compensation method	Dynamic, static
Single set capacity	30–600 kvar
Installation position	Indoor
Cooling mode	Natural air cooling
Cabinet type structure	GGD, GCK, GCS, MNS
Altitude	2,000 meters; custom options available for distances over 2,000 meters.
Service life	>30 years
Executive standards GB/T 15576-2008

Standard cabinet dimensions

Capacity (C)/Mvar	100	240	300	350
Width (W)/mm			800/1000/1200
Height (H)/mm			2200
Depth (D)/mm			800/1000		400

Quick Selection Guide

System voltage	Specification and Model	Rated capacity
0.22kV	KSVG-TSC-D0.22/20-7T	20
	KSVG-TSC-D0.22/60-7T	60
	KSVG-TSC-D0.22/100-7T	100
	KSVG-TSC-D0.22/150-7T	150

System voltage	Specification and Model	Rated capacity
0.4kV	KSVG-TSC-D0.4/20-7T	20
	KSVG-TSC-D0.4/240-7T	240
	KSVG-TSC-D0.4/600-7T	600
	KSVG-TSC-D0.4/1000-7T	1000

System voltage	Specification and Model	Rated capacity
0.69kV	KSVG-TSC-D0.69/100-7T	100
	KSVG-TSC-D0.69/180-7T	180
	KSVG-TSC-D0.69/300-7T	300
	KSVG-TSC-DO.69/1000-7T	1000

System voltage	Specification and Model	Rated capacity
1kV	KSVG-TSC-D1/200-7T	200
	KSVG-TSC-D1/300-7T	300
	KSVG-TSC-D1/600-7T	600
	KSVG-TSC-D1/1000-7T	1000

System voltage	Specification and Model	Rated capacity
Smart capacitor 0.4 kV	KSVG-TSC-0.4/20-7TI	200
	KSVG-TSC-0.4/300-7TI	300
	KSVG-TSC-0.4/600-7TI	600
	KSVG-TSC-0.4/1000-7TI	1000

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