The HD series anti harmonic low-voltage intelligent power capacitor is designed for situations where the harmonic content in the power network is high and ordinary power capacitors cannot operate normally. It adopts a special process and is composed of 6%, 7%, 13%, 14% reactors and industrial grade low-voltage power capacitors. It is a major breakthrough in low-voltage reactive power automatic compensation and filtering technology, mainly used for reactive power compensation in situations with severe harmonics. It can operate reliably without resonance, has no amplification effect on harmonics, and has the function of suppressing harmonics to a certain extent.

The product has obtained the national mandatory product certification CCC certificate and safety type test report

1、 Product selection

HD-□□□ □□/□□□-□□. □□P□

For example: HD-100SG/480-20.20P7 with a total compensation of 40kVar, internal series connection of 7% reactance, three-phase switching, intelligent networking

HD-100FG/280-20P7 with 20kVar compensation, internal series connection of 7% reactance, phase switching, intelligent networking

The three-phase compensation method product contains two "△" type capacitors inside, which do not switch on or off at the same time during operation, with a switching capacity of (10+10) kVar~(20+20) kVar;

The phase separation compensation method product has a "Y" type capacitor, with A, B, and C phases switched on and off respectively, with a switching capacity of (10) kVar to (20) kVar;

The rated voltage is generally taken as 480V or 525V for three-phase compensation, 280V or 300V for phase separation compensation, and can be connected in series with reactance of 6%, 7%, 13%, and 14%.

2、 Product Technical Specifications

1) Environmental conditions

Environmental temperature:- 40～65℃

Relative humidity: 40 ℃, 20-90%

Altitude: ≤ 4000m

2) Power supply conditions

Rated voltage:~ 220V/～380V

Voltage deviation: ± 20%

Voltage waveform: sine wave, total distortion rate not exceeding 8%

Power frequency: 48.5-51.5Hz

Power consumption:< 0.5W (when removing the capacitor)

3) Electrical safety

The electrical clearance and creepage distance, insulation strength, safety protection, short-circuit strength, and the use and control circuit protection all comply with the requirements of the Electric Power Administration of the People's Republic of China

The corresponding clause requirements in the industry standard DL/T842-2003 "Service Conditions for Low Voltage Parallel Capacitor Devices".

4) Measurement error

Voltage: ≤ 0.5% (within the range of 80-120% rated voltage)

Current: ≤ 1%

Temperature: ± 1 ℃

5) Protecting errors

Voltage: ≤ 0.5% (within the range of 80-120% rated voltage)

Current: ≤ 1%

Temperature: ± 1 ℃ (capacitor)

Time: ± 0.01S

6) Reactive power compensation parameters

Capacitor switching interval:> 10S

Reactive power capacity: Single unit ≤ (20+20) kvar (three-phase), ≤ 20kvar (phase separation);

Online: ≤ 33 units

7) Reliability parameters

Control accuracy: 100%

Control allowable frequency: with a load greater than 1.4 million times

Capacity decay rate of capacitors during operation: ≤ 1%/year

Capacitor capacity switching attenuation rate: ≤ 0.1%/10000 times

Annual failure rate: ≤ 0.1%

8) Mechanical parameters and installation

Weight: 35kg [(20+20) kvar]

Dimensions: 280 (W) × 280 (H) × 370 (D) mm3

Fixed hole installation size: 295mm × 350mm

Fixed hole size: φ6mm

Note: The quality of products varies with different specifications, but the external dimensions, spacing between fixing holes, and size of fixing holes are the same.