Home / Products / APF/AHF / Rack-mounted APF/AHF Active Power/Harmonic Filter

400V Self-healing Capacitor-cylindrical BKMJ0.46-30-3

1.Rated Voltage(Ue)：250v~525v, up to 2000v
2.Frequency：50/60Hz
3.Compact design，equipped with grounding bolt
4.Potting material: PU resin (soft resin)
5.Easy installation and wiring
6.Small size, Light weight
7.Self-healing, Maintenance-free
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50KVAR Self-healing Capacitor for PFC(Power factor correction)-square BKMJ

1.Rated Voltage(Ue)：100v~1000v
2.Installation Indoor
3.Case material Galvanized steel sheet
4.Output Range 10~100kvar
5.Frequency 50/60Hz
6.Connection configuration D, Y, YN, III
7.Terminal Block ：M6, M8, M10 (According to capacitor power)
8.Lose tanδ<0.001 (20°C 50Hz)
9.Temprature -25°C~50°C
10.Highest Altitude 2000m
11.Capacitor (to wall) pitch ≥50mm
12.Capacitance Deviation -5%~+10%
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BKMJ0.4KV Submerged Arc Furnace Capacitor

1.Frequency 60Hz
2.Capacitance Deviation -5%~+10%
3.Max Current 2.5×In
Equipped with discharge resistors
4.Integrated with independent over-voltage protection devices
5.Superior self-healing performance and extended service life
6.Low-loss factor, dry-type design with leakage-free construction
7.Equipped with discharge resistors
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10KV High voltage Shunt High-Voltage Capacitors

1.Rated Voltage:6kV,10kV,35kV
2.Rated Capacity:1-100Mvar(per bank)
3.The capacitor is mainly consisted of container and device body.
4.The core is consisted of severalelements and insulation parts. The element is rolled, pressed andmade of two aluminum foilsand somepiece of thin dielectric polypropylene films sandwiched betweenthe two aluminum foils. In order to reach the differentdemand of voltage and capacity, the elements in core is connected by someseriesand parallelmethod. The technology of aluminum foiledge folding and protruding weldingare used to reduce the loss and increase the performance of partial discharging.
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Rack-mounted APF/AHF Active Power/Harmonic Filter

1.Rated Input:400V*(1±20%)
2.Power Grid Frequency:50Hz/60Hz
3.Real-time tracking: Maintains system power factor at 0.99 through linear, bidirectional (capacitive/inductive) compensation.
4.Active technology: Prevents resonance/harmonic amplification; efficient even under low-voltage conditions.
5.Modular design: Rack-mounted

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Product Introduction

1.Rack-mounted APF/AHF Active Power/Harmonic Filter

In today’s power-intensive industries, the Rack-mounted APF/AHF Active Power/Harmonic Filter stands as a game-changer for managing harmonics, reactive power, and voltage stability. Designed for 400V±20% input systems, this advanced solution combines real-time tracking with adaptive compensation to maintain a power factor of 0.99. Its modular, rack-mounted design ensures seamless integration into diverse industrial setups while preventing harmonic resonance—even under challenging low-voltage conditions.

Rack-mounted APF

2.Technical Specifications

Rated Input: 400V ±20%
Frequency: 50Hz/60Hz
Harmonic Filtering Accuracy: >95%
Compensation Range: Linear, bidirectional (capacitive/inductive)
Modular Capacity: 50A–3000A (expandable)
Protection Grade: IP54
Certifications: ISO 9001

Module Model
Models	Compensation Capacity (A)	System Voltage (V)	Dimensions Width * Depth * Height (mm)	Cooling System
AHF-0.4-25A/4L-R(W)	25	400	46049089	Forced air cooling
AHF-0.4-50A/4L-R(W)	50	400	46049089	Forced air cooling
AHF-0.4-75A/4L-R(W)	75	400	500510190	Forced air cooling
AHF-0.4-100A/4L-R(W)	100	400	500550240	Forced air cooling
AHF-0.4-150A/4L-R(W)	150	400	500550240	Forced air cooling
AHF-0.5-100A/4L-R(W)	100	500	495675275	Forced air cooling
AHF-0.69-100A/4L-R(W)	100	690	495675275	Forced air cooling
Cabinet model
Models	Compensation Capacity (A)	System Voltage (V)	Dimensions Width * Depth * Height (mm)	Cooling System
AHF-0.4-200A/4L-C	200	400	100010002200	Forced air cooling
AHF-0.4-250A/4L-C	250	400	100010002200	Forced air cooling
AAHF-0.4-300A/4L-C	300	400	100010002200	Forced air cooling
AHF-0.4-400A/4L-C	400	400	100010002200	Forced air cooling
AHF-0.4-500A/4L-C	500	400	100010002200	Forced air cooling
AHF-0.4-600A/4L-C	600	400	100010002200	Forced air cooling
AHF-0.5-200A/4L-C	200	500	100010002200	Forced air cooling
AHF-0.5-300A/4L-C	300	500	100010002200	Forced air cooling
AHF-0.5-400A/4L-C	400	500	100010002200	Forced air cooling
AHF-0.69-200A/4L-C	200	690	100010002200	Forced air cooling
AHF-0.69-300A/4L-C	300	690	100010002200	Forced air cooling
AHF-0.69-400A/4L-C	400	690	100010002200	Forced air cooling
	220V Series	380V Series	500V Series	690V Series
Altitude	＜2000m, Usage should be de-rated according to the international standard IEC 3859-2 for altitudes above 2000 meters.
Ambient Temperature	-10~+50 ℃ (derated above 40 ℃)
Relative Humidity	≤ 90%, monthly minimum temperature 25 ℃, no condensation on the surface
Pollution Level	Below Level III
Operating Voltage	AC220V±20%	AC380V（-20%~+20%）	AC500V±20%	AC690V（-20%~+15%）
Operating Frequency	50Hz/60Hz (45Hz~63Hz)
Rated Compensation Capacity	25A	25A, 50A, 75A, 100A, 150A	100A
Power Grid Structure	L/N	Three-phase three-wire, Three-phase four-wire
Numbers in Parallel	Not supported	Unlimited
System Efficiency	≥97%
Switching Frequency	32kHz	16kHz	12.8kHz
Function Selection	Harmonics	Harmonics, Harmonics+Unbalanced
Compensation Scope	2~50 times, with adjustable compensation rate per time		2-25 times, with adjustable compensation rate per time
Harmonic Compensation Rate	＞92%
Full Response Time	<10ms	<40ms
Noise	≤60dB		≤65dB
Communication	2*RS485 Communication Ports (Supports GPRS/WIFI)
Protection	Overload, software/hardware over current, power grid over voltage/under voltage, power failure, over-temperature, frequency abnormality, short circuit protection		Overload, software/hardware over current, power grid over voltage/under voltage, power grid voltage imbalance, power failure, over-temperature, frequency abnormality, short circuit protection
Installation	Rack-Mounted, Wall-Mounted		Rack-Mounted
Entry Line Method	Rear Inlet (rack-mounted), Top Inlet (wall-mounted)		Rear Line
Protection Level	IP20

3.Key Features & Benefits

1. Dynamic Harmonic Suppression

Actively eliminates 2nd–50th order harmonics using patented IGBT switching technology.

2. Dual-Function Compensation

Simultaneously addresses harmonic distortion and reactive power imbalance.

3. Resistance to Grid Fluctuations

Stable operation in 300V–480V voltage ranges with <3ms response time.

4. Plug-and-Play Modularity

Hot-swappable modules enable capacity upgrades without downtime.

4.Applications

Be used in a wide range of industries.

Industrial Plants

Eliminate power factor penalties in CNC machines and assembly lines while handling surge currents up to 100x rated capacity.

Substation

Stabilizes substation voltage against harmonics and intermittent generation from renewable inverters.

Commercial Buildings

Retrofit aging systems in hospitals or malls with silent (<45dB), flame-retardant capacitors that meet NFPA 70 fire codes.

5.How It Works？

1. Real-Time Analysis: DSP controllers monitor voltage/current waveforms.

2. Harmonic Detection: Identifies distortion patterns up to 20kHz.

3. Counteractive Injection: Generates inverse harmonics via IGBT inverters.

4. Closed-Loop Control: Maintains THDv <3% continuously.

6.Manufacturing & Quality Control

Our vertically integrated production includes Rack-mounted APF/AHF Active Power/Harmonic Filter:

In-House Component Fabrication: IGBT modules, control boards
100+ Stage Testing: Thermal cycling, surge immunity, MIL-STD vibration tests
Automated Assembly: Robotic soldering for consistency

7.Why Choose Us?

15+ Years Expertise: National 863 Program R&D partner
Industry Recognition: "Top 10 Active Filter Brands" (2022)
Compliance Assurance: 3C, ISO 14001,
50,000-Hour Reliability: MTBF-certified design

Certificate

8.FAQs

Q: How quickly can this filter reduce harmonics in a steel plant?

A: Our system achieves <8% THDi within 1 power cycle (20ms).

Q: Can it handle variable frequency drives (VFDs) in oil/gas operations?

A: Yes, with dedicated algorithms for 6-pulse/12-pulse VFD harmonics.

Q: What’s the ROI timeline for a 1MW manufacturing facility?

A: Typical energy savings of 12–18% yield 2–3 year payback periods.

Q: Is remote monitoring included?

A: All units come with 24/7 IoT-based predictive maintenance alerts.

Q: Can we expand capacity post-installation?

A: Easily add modules via the rack’s N+1 redundant slots.

9.Contact Us

Contact Our Power Quality Team about Rack-mounted APF/AHF Active Power/Harmonic Filter.

Email: xaxd_electric@163.com

10.Factory Show

11.Equipment Display

Equipment

12.Application Cases

State Grid systems, power engineering, steel and metallurgy, petrochemicals, rail transportation, energy and water conservancy, construction, environmental protection, and renewable energy sectors