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SD-MVLC filter compensation components (7%, 14%...)

Used for reactive power compensation, providing reactive power compensation to the power grid system, improving power factor, reducing line and transformer losses, and playing a voltage support role; For harmonic filtering device, it can not only compensate reactive power, but also absorb a large number of harmonics and purify the power grid;

Product Description

SD-MVLC series capacitor reactor group

 

Main application

  • Used for reactive power compensation, providing reactive power compensation to the power grid system, improving power factor, reducing line and transformer losses, and playing a voltage support role;
  • For harmonic filtering device, it can not only compensate reactive power, but also absorb a large number of harmonics and purify the power grid;

 

Standard

Technical standard: IEC439-1, EN60439-1, EN60832-1, JB/T7113-1993

 

Operating conditions

Rated voltage: 230V-690V

Rated frequency: 50Hz/60Hz

Withstand voltage test: according to the standard

Cooling method: forced air cooling

Ambient temperature:-15 to 50°C (65°C high)

Altitude:<2000m a.s.l.(≤ 5000m optional)

Relative humidity: 10…95% (no condensation allowed)

 

Design

Capacitor reactance group: 20-25-30-40-50kVar

Reactivity rate: 5%-14%

Design: single-phase or three-phase

Performance of main components

The capacitor is selected as a high-load, low-loss, self-healing, dry-type capacitor with a rated voltage of 480V-525V-860V. It can operate continuously for a long time under 1.1 times the rated voltage of the power grid and can operate under 1.21 times (515V) the rated voltage of the power grid 8 hours a day. Over-current capacity 1.5 times safety explosion-proof type, with over-pressure safety protection device, the service life is more than 15 years.

Advantages of dry capacitors:

a) Self-healing performance.
B) Reliable over-pressure safety protection.
c) Small size and light weight. Can be installed at any angle.
d) Dry type environmental protection, no pollution and no leakage.
e) Stable operation for a long time and long service life.

This component adopts a reactance rate of 7%(14%), the series resonance point is 189Hz(134Hz), is capacitive at the fundamental wave, and is inductive at the fifth (third) and above harmonic frequencies, thus realizing the purpose of avoiding the danger of resonance, filtering out most harmonics, and fully automatic reactive power compensation. It has a governance effect on the fifth and seventh (third) harmonics, especially suitable for industrial loads.

Harmonic control and reactive power compensation component products can control the harmonic level within the national standard requirements. At the same time, the power factor can be increased to more than 0.9 even at full load.
It adopts three-phase, iron core and copper multi-air gap filter reactor, with linearity as high as 2.0 × IN, strong overload capacity and low power loss. With 120 ℃ overtemperature protection switch.