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About usKonstanz Electric Group Co., Ltd. is an industry leading enterprise integrating intelligent manufacturing and technology research and development of high and low voltage transmission and distribution equipment, power quality,
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Contact usConstants Electric always adheres to the service concept of integrity and professionalism, and strives to provide high-quality lifelong service for users, and provide safe and reliable power distribution solutions for smart c
Complete set of low-voltage capacitor
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KSVG-TSC series low-voltage capacitor complete set consists of low-voltage capacitor bank and switch, low-voltage tuning reactor, power factor controller, etc., which are connected in parallel in the AC three-phase power system of 1kV and below to improve power factor, adjust network voltage, control harmonic pollution, and reduce line loss. Its working principle and main components are shown in the figure.
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KSVG-TSC series low-voltage capacitor complete set consists of low-voltage capacitor bank and switch, low-voltage tuning reactor, power factor controller, etc., which are connected in parallel in the AC three-phase power system of 1kV and below to improve power factor, adjust network voltage, control harmonic pollution, and reduce line loss. Its working principle and main components are shown in the figure.
● Fuse switch or molded case circuit breaker
As an independent equipment, each KSVG-TSC reactive power compensation cabinet has a main switch to connect the compensation equipment to the bus. At the same time, it can protect the short circuit fault in this cabinet.
● Overvoltage protection element
Each reactive compensation cabinet is composed of several reactive compensation branches. The branches here include: protection elements, switching switches, reactors and power capacitors. Reduce the impact of overvoltage on the equipment in the cabinet and prevent the damage of overvoltage to the components in the cabinet. Common products: lightning arrester, surge protector, varistor.
● Switching switch
The function of the switching switch is to connect the capacitor and reactor on the compensation branch to the components in the system or out of the system. Connect the capacitor reactance to the system, which is often called capacitor input; The capacitor reactance is removed from the system, that is, the capacitor is removed. The capacitor input is accompanied by inrush current, which is the basic characteristic of capacitor input. Therefore, the switching switch has another role, which is to reduce the capacitor inrush current. Commonly used products: KS/TSC silicon controlled switch of Konstanz, special contactor for KS/JK capacitor, and KS/FK composite switch.
● Tuning reactor
The main parameter of the reactor is "reactance rate". For reactors that suppress harmonics, the reactance rate is determined according to the number of main harmonics in the system. For example, to suppress the influence of 5th and 7th harmonics, the common reactance rate is 7%; Restrain the influence of the third harmonic, and 14% reactance rate is commonly used. As an important component in the reactive power compensation cabinet, Konstanz "KD-LK reactor" has two main functions: restraining capacitor inrush current and harmonic.
● Low voltage capacitor
It is put into the main accessories of the reactive power compensation cabinet. Because of the existence of capacitors, the reactive power compensation cabinet is also often called "capacitor cabinet". In low-voltage systems, our common capacitors are self-healing capacitors (made of metallized films). The different fillers inside the root capacitors can be divided into dry capacitors and oil immersed capacitors. The oil immersed capacitor uses liquid filler. The disadvantage of the liquid is that there is a risk of leakage, and the oil is flammable. Konstanz "KD-H capacitor" is filled with resin and inert gas, which makes the operation safer and more stable.
● Power factor controller
Konstanz "KZD-111 power factor controller" is the control center of the reactive power compensation cabinet, which is the core of controlling the automatic switching of capacitors (compensation branches). The power factor controller monitors the reactive power shortage or power factor index of the system, controls the automatic switching of capacitors (compensation branches), so as to adjust the power factor to the qualified range.
KS-HSVG is a compensation device based on voltage source converter, which realizes a qualitative leap in reactive power compensation. It no longer uses capacitance and inductance devices with large capacity, but realizes the conversion of reactive energy through high-frequency switch (IGBT) of high-power power electronic devices. KS-HSVG has the following characteristics compared with traditional reactive power compensation device:
● Faster response speed within 5ms
● Diversified compensation functions, reactive compensation, harmonic compensation, negative sequence compensation and comprehensive compensation
● Stronger voltage flicker suppression capability, greater than 80%
● Wider operating range, - 100% to+100% of rated capacity
● Very low harmonic content, almost no harmonic, and can filter
● Small floor area and small on-site construction amount ● Rated voltage: 0.22kV/0.4kV/0.69kV/1kV
● Rated capacity: 20kvar~1000kvar
● Network topology: three-phase three wire/three-phase four wire
● Operating mode: voltage, reactive power and power factor
● Compensation mode: group switching/local compensation
● Switching switch: thyristor/special contactor/composite switch
● Protection grade: IP30/IP44
● Standards: GB/T15576 -- 2008
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capacity(C)/Mvar |
100 | 240 | 300 | 350 | |
| wide(W)/mm | 800/1000/1200 | ||||
| high(H)/mm | 2200 | ||||
| deep(D)/mm | 800/1000 | 400 |
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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 |
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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 |
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system voltage
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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 |
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system voltage
|
Specification and model
|
Rated capacity
|
|
Intelligent capacitor 0.4kV |
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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