Low Voltage Active Harmonic Filter Module
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Low Voltage Active Harmonic Filter Module

  • Filtering 2-51th harmonic current for three phase 208-690V/50(60)Hz system of with 35~150A rating CT sampling from grid or loads side.

  • APFM-0.4-50a(b)/T(F)L

  • Wall mounted and rack mounted

  • Sanhe

Availability:

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Specific information:

The active power filter (APF) is actively harmonic current filter. It can detect the sampling current through the current transformer, calculates through the internal adaptive control algorithm and then sends the PWM signal to the internal IGBT to control the converter to generate a harmonic current to the grid, comparing to actual harmonic current ,which has same size but opposite in direction.


Feature:

Adopt the latest IGBT technology with a high switching frequency up to 20KHz

Quick responses and minimal thermal-and electric energy losses

Quickly responding DSP+FPGA processors control the platform.

DSP full digital control systems, which can immediately respond to load changes

Unique spacious design for best thermal management.

Best-in-business three level topology that can better offset the current approach to the sine wave compared with additional two-level inverters.


Technical data:

Item

Description

Main Function

Harmonic Filter

Setting filtering from 2-51 times(under only harmonic filtering function)

While choose priority, the harmonic filtering is 2-13th

Auto/Priority function(customized)

The user can also set the priority function, including H+Q/ Q+H/Q+H+B/H+Q+B  (Q power factor, H harmonic filtering, B, unblance )

Application

Hotel,Car park, Car charger station,Car 4S store,IDC, hospital,Railway,water treatment and other non-liner load

Electrical

Rated voltage

208-690Vac

Wiring

3P4W/3P3W

Frequency

50(60)±2Hz

Capacity

35~150A(According to SVG type)

Module Consumption

<2kW

Efficiency

Up to 97.5%

switching frequency

20kHz

Response time

Fast response time<50μs

Total response time<5ms

CT ratio

150:5~6000:5

Parallel

Max.5 (customization acceptable)

Terminals

Communication

RS485

Environment

Operating environment

In-door, free from moisture, dust, corrodent or flammable gases, oil mist, vapor, water leakage or salt water.

Altitude

<1000m (customized acceptable)

Work temperature

-20℃~+50℃( derating is required from 40℃ to 50℃, increase every 1℃ above 40℃, derating 2%, highest temperature allowed: 50℃ )

Humidity

Less than 95%RH, no condensing

Storage temperature

-20℃~+70℃

Vibration

Less than 5.9m/s2 (0.6g)

Enclosure

Protection degree

IP20

Colour

7035 gray (customization acceptable)

Size

According to APF type(refer: APF Dimensions)

Cooling

Fan cooling


Standard:


Model Guide

Model

Rated Capacity(kVAR)

Wring

Installation

APFM0.4-35a(b)/T(F)L

35

3p3w/3p4w

Wall mounted/ Rack type

APFM0.4-50a(b)/T(F)L

50

3p3w/3p4w

Wall mounted/ Rack type

APFM0.4-75a(b)/T(F)L

75

3p3w/3p4w

Wall mounted/ Rack type

APFM0.4-100a(b)/T(F)L

100

3p3w/3p4w

Wall mounted/ Rack type


APFM Dimension

APFM4

(mm)

Rack mounted

Wall mounted

35A/50A

75A

100A

150A

35A/50A

75A

100A

150A

A

437

480

480

550

400

440

440

510

B

420

460

460

532

240

360

360

360

C

400

440

440

510

/

/

/

/

D

205

232

232

250

205

232

232

250

E

88

88

88

88

545

610

610

610

F

58

72

72

81

80

40

40

75

G

563

652

652

660

573

636

636

648

H

497

576

576

585

497

576

576

585

K

40

40

40

40

/

/

/

/


FAQ

Q: What is APF Working principles ?

A:1.External current transformer(CT)could detect real-time load current .

2.Internal DSP calculates and analyzes the reactive power content of the system.

3.Control PWM to send signal to IGBT to generate reactive power compensation current for power factor compensation.

Q: How to choose the model number?

A: Please specify the APF rated voltage,frequency ,3p3w/3p4w,rated capacity,CT sampling position(grid or load side).

Q:What is the standard packaging?

A: 1*manual(or electronic manual)

1*protection cover(only for wall mounted type,1 module 1 cover)

Q:How to prepare APF/SVG module before installation?

A:1. the standard package is not packed with breaker and current transformer. If need,please advise while ordering.

2.We recommended open-type current transformer for easy installation.

APFM5

open-type current transformer

3.APF module should be protected by superior breaker. If the breaker is not installed,it is not convenient and protective for debug etc.

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