APF Low-Voltage Active Power Filter | Harmonic Compensation Device

Parameter

Product Features
1. High Efficiency and Energy Saving
Utilizes patented constant frequency PWM technology, featuring high tracking speed, low ripple, and low losses.
Low-loss amorphous alloy magnetic core reactors ensure low noise, high efficiency, and overall machine losses as low as 3%.

2. High Filtering Capability
Multi-DSP collaborative control provides high precision and fast response.
The harmonic removal rate for target harmonics can reach up to 97%, effectively filtering up to the 50th harmonic.

3. Multi-functionality and High Adaptability
Offers functions such as harmonic partial compensation, comprehensive reactive power compensation for harmonics, and active power balancing compensation.
Adaptable for stable operation in various complex environments, can be used in parallel with reactive power compensation cabinets.
Field-programmable source current and load current detection features, equipped with a true-color touch display, support bilingual interface in Chinese and English.
Comes with RS485 interface, compliant with the standard BODBUS CNU communication protocol for computer remote monitoring.

4. Stability and Reliability
Designed according to industrial-grade standards for safety and reliability.
Rigorous thermal design ensures safe operation, with multiple protection features against over-voltage, over-current, and overheating.
Automatic current limiting after full load output prevents overload, with self-diagnosis capabilities for faults.

When the active power filter device is used, the model can be selected according to the measured value of the harmonic current. However, if there is no measured value, you can refer to the data in the following table for preliminary selection.
Industry Transformer capacity	Centralized Harmonic Suppressing Sheet
Industry Transformer capacity	Building	Buildings, subways	Medical, tires, metallurgy	Automotive & Manufacturing Industry	Large venues, oil extraction	Chemical industry
Total Harmonics Distortion（THD）	10%	15%	20%	25%	30%	35%
200kVA	50	50	50	75	100	100
250kVA	50	75	75	75	100	100
315kVA	50	100	100	100	150	150
400kVA	50	100	100	150	150	150
500kVA	75	150	150	150	200	200
630kVA	100	150	150	200	250	250
800kVA	100	200	200	250	300	350
1000kVA	150	250	250	300	350	400
1250kVA	150	300	300	400	450	500
1600kVA	200	400	400	500	550	650
2000kVA	250	500	500	600	700	800
2500kVA	300	600	600	700	850	1000
Note: The capacity in the above table is calculated under the condition of 80% of the load rate of the transformer, if the load rate of the transformer changes, then the choice of capacity changes proportionally.

Equipment capacity/kW	Sheet for in-place governance of typical loads
	Office lighting Central air conditioning	Thyristor dimming, Blaupunk Stone heating and medical equipment	PS (6 pulses)	Switching power supply, inverter Elevators, intermediate frequency furnaces	DC drive	charger
	15%	30%	35%	40%	45%	55%
50	50	50	50	50	50	50
75	50	50	50	75	75	75
100	50	75	75	75	100	100
125		75	100	100	100	150
150	50	100	100	150	150	150
175	50	150	150	150	150	200
200	75	150	150	150	200	200
250	100	150	200	200	200	250
300	100	200	200	250	250	300
400	150	250	250	300	350	400
500	150	300	350	400	400	500