automatic power faktor correction unit sistems...

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AUTOMATIC POWER FAKTOR CORRECTION UNIT

SISTEMS AND TYPES OF COMPENSATION

PROTECTING CAPACITORS FROM HARMONICS

When selecting capacitor bank, there are two compensation systems.

Fixed type capacitor banks Automatic type capacitor banks

- The reactive power supplied by the capacitor bank isconstant irrespective of any variations in the powerfactor and the load of the receivers, thus of the reactive energy consumption of the installation.

- These capacitor banks are switched on:- Either manually by a circuit breaker or switch- Or semi-automatically by a remote-controlled contactor

This type of capacitor bank is generally used in the following situations:- Electrical installations with constant load operating24 hours a dey- Reactive compensation of transformers- Individual compensation of motors- Installation of a capacitor bank whose power is lessthan or equal to 15% of the power of the transformer

By design and in accordance with current standards,capacitors are capable of continuously withstandingan rms current equal to 1.3 times the nominal currentdefined at the nominal voltage and frequency values.

This overcurrent coefficient has been determined totake account of the combined effects of the presence of harmonics and overvoltages (the capacitance variationparameter being negligible).

It can be seen that depending on the degree ofharmonic pollution SH (power of the harmonicgenerators), this coefficient is generally insufficient and that the parameter Ssc (short-circuit power), directly related to the power of the source ST, is preponerant in the value of the parallel resonance frequency (Fr.p).

By combining these two parameters, SH and ST,three types of mains supply can be defined, witha corresponding “type” of capacitor to be installed:

- The reactive power supplied by the capacitor bank can be adjusted according to variations in the power factor and the load of the receivers, thus of the reactive energy consumption of the installation.

- These capacitor banks are made up of a combination of capacitor steps (step = capacitor + contactor) connected in parallel. Switching on andoff of all or part of the capacitor bank is controlledby an integrated power factor controller.

- These capacitor banks are also used in the following situations:- Variable load electrical installations- Compensation of main LV distribution boards ormajor outgoing lines.

- Installation of a capacitor bank whose power is morethan 15% greater than the power of the transformer

M3~

M3~

M3~

.../5Aclass 1-10 VA

Electromechanical orsolid state contactor Power factor

controller

M3~


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TECHNICAL DATA:

AKRE capacitor banks are automatic banks with switchingvia electromechanical contactors. - Rated Voltage: 400V, 50Hz; 3; - Admissible working voltage range for the capacitors: AKRE: 380 - 440V AKRE 5h: 380 - 440V AKRE 3h: 380 - 525V - Regulation Voltage: 230V, 50Hz - Temperature class:

0 0 Operation -10/+45 C (average over 24 hours: 40 C)0 0 Operation -10/+40 C (average over 24 hours: 40 C)

0 Storage -30/+60 C - Ventilation: natural or forced - Colour grey cabinet (RAL 7035), black base - Tolerance: 1,1 x Un & 1,3-1,5 x Ie - Mechanical protection: IP 31 - Standards: EN 60439-1; IEC 60439-1 and 2

- Rated Voltage: 400V, 50Hz; 3; - Admissible working voltage range for the capacitors: 380 - 440V - Regulation Voltage: 230V, 50Hz - Temperature class:

0 0 Operation -10/+45 C (average over 24 hours: 40 C)0 Storage -30/+60 C

- Ventilation: natural - Colour grey cabinet (RAL 7035), - Tolerance: 1,1 x Un & 1,3-1,5 x Ie - Mechanical protection: IP 31 - Standards: EN 60439-1; IEC 60439-1 and 2

AKRE capacitor banks with built-in circuit breakerAssembly filled and wired in an IP 31

Fixed capacitor banks

CONSTRUCTION OF THE ELECTRICAL CABINETS

The electrical cabinets have a metal case, they are prepared for a standing mounting position with a low voltage switches MCCB built-in as a standard mode.W - wide , H - height, D - depth

Other powers, voltages, frequencies on request. Fix capacitor banks on request.

Degree ofinterference

SH

ST

Harmonicpolution≤ 15%

Harmonic levels

thdU < 2%thdI < 5%

Harmonicpolution

15% - 25%Harmonic

levelsthdU < 3%thdI < 10%

Harmonicpolution

25% - 35%Harmonic

levelsthdU < 4%thdI<20%

Harmonicpolution

35% - 50%Harmonic

levelsthdU < 6%thdI < 40%

Harmonicpolution> 50%

Harmonic levels

thdU > 6%thdI > 40%

standard AKRE AKRE, 3h/5h AKRE, 3h/5h Special AKRE

SH (kVA) is the weighted total power of the harmonic generators present at the transformer secondary.

ST (kVA) is the power rating of the HV/LV transformer.

PAKRE capacitor banks are Semi - automatic banks with switching via electromechanical contactors. - Rated Voltage: 400V, 50Hz; 3; - Admissible working voltage range for the capacitors: AKRE: 380 - 440V - Regulation Voltage: 230V, 50Hz - Temperature class:

0 0 Operation -10/+45 C (average over 24 hours: 40 C)0 Storage -30/+60 C

- Ventilation: natural or forced - Colour grey cabinet (RAL 7035), black base - Tolerance: 1,1 x Un & 1,3 x Ie - Mechanical protection: IP 31 - Standards: EN 60439-1; IEC 60439-1 and 2

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Automatic Power Factor correction unit from 75 to 160 kVAr/440V

AKRE 15/440 15 440

440

440

440

440

440

440

440

5 + 5 + 5

5 + 5 + 10

5 + 10 + 10

5 + 10 + 15

5 + 10 + 20

10 + 10 + 20

10 + 20 + 20

10 + 15 + 20 + 20

20

25

30

35

40

50

65

AKRE 20/440

AKRE 25/440

AKRE 30/440

AKRE 35/440

AKRE 40/440

AKRE 50/440

AKRE 65/440

600x900x280

600x900x280

600x900x280

600x900x280

600x900x280

600x900x280

600x900x280

600x900x280

Type Pover(kVar)

Voltage (V)

Steps Dimensions WxHxD

AKRE 75/440 75 440

440

440

440

440

440

440

12,5+12,5+25+25

10+10+20+20+20

10+20+20+20+20

20+20+20+20+20

25+25+25+25+25

10 + 7x 20

8x20

80

90

100

125

150

160

AKRE 80/440

AKRE 90/440

AKRE 100/440

AKRE 125/440

AKRE 150/440

AKRE 160/440

700x1200x300

700x1200x300

700x1200x300

700x1200x300

700x1200x300

700x1200x300

700x1200x300

Type Pover(kVar)

Voltage (V)


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Automatic Power Factor correction unit from 15 to 65 kVAr/440V


Automatic Power Factor correction unitfrom 175 to 300kVAr/440V

Automatic Power Factor correction unitfrom 325 to 420kVAr/440V

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AKRE 175/440 175 440

440

440

440

440

440

3x25+2x50

4x25+2x50

3x25+3x50

2x25+4x50

25+5x50

2x25 +57x 50

200

225

250

275

300

AKRE 200/440

AKRE 225/440

AKRE 250/440

AKRE 275/440

AKRE 300/440

680x2150x430

680x2150x430

680x2150x430

680x2150x430

680x2150x430

680x2150x430

Type Pover(kVar)

Voltage (V)


AKRE 325/440 325 440

440

440

440

440

440

3x25+5x50

2x25+6x50

3x25+6x50

2x20+4x40+3x60

20+5x40+3x60

6x40 +3x 60

350

375

380

400

420

AKRE 350/440

AKRE 375/440

AKRE 380/440

AKRE 400/440

AKRE 420/440

900x2150x430

900x2150x430

900x2150x430

900x2150x430

900x2150x430

900x2150x430

Type Pover(kVar)

Voltage (V)


Automatic Power Factor correction unit from 450 to 660kVAr/ 440V

AKRE 450/440 450 440

440

440

440

440

2x25+6x50

4x25+8x50

2x25+10x50

12x50

12x60

500

550

600

660

AKRE 500/440

AKRE 550/440

AKRE 600/440

AKRE 660/440

1400x2150x430

1400x2150x430

1400x2150x430

1400x2150x430

1400x2150x430

Type Pover(kVar)

Voltage (V)


Automatic Power Factor correction unit from 30 to 75kVAr/ 440V; p=7%

With detuned filter reactors.Resonance frequency = 189Hz.Blocking factor p%= 7%.





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AKRE 30/440; 7% 30 440

440

440

440

440

440

2x5+2x10

4x50

3x15

5x10

4x15

5x15

40

45

50

60

75

AKRE 40/440; 7%

AKRE 45/440; 7%

AKRE 50/440; 7%

AKRE 60/440; 7%

AKRE 75/440; 7%

850x1450x360

850x1450x360

850x1450x360

850x1450x360

850x1450x360

850x1450x360

Type Pover(kVar)

Voltage (V)


AKRE 80/440; 7% 80 440

440

440

440

440

440

2x15+2x25

4x25

3x25+50

2x25+2x50

25+3x50

4x50

100

125

150

175

200

AKRE 100/440; 7%

AKRE 125/440; 7%

AKRE 150/440; 7%

AKRE 175/440; 7%

AKRE 200/440; 7%

850x1950x520

850x1950x520

850x1950x520

850x1950x520

850x1950x520

850x1950x520

Type Pover(kVar)

Voltage (V)


AKRE 225/440; 7% 225 440

440

440

440

440

440

440

3x25+3x50

2x25+4x50

3x25+4x50

2x25+5x50

3x25+5x50

2x25+6x50

3x25+6x50

250

275

300

325

350

375

AKRE 250/440; 7%

AKRE 275/440; 7%

AKRE 300/440; 7%

AKRE 325/440; 7%

AKRE 350/440; 7%

AKRE 375/440; 7%

1200x2270x600

1200x2270x600

1200x2270x600

1200x2270x600

1200x2270x600

1200x2270x600

1200x2270x600

Type Pover(kVar)

Voltage (V)




AKRE 400/440; 7% 400 440

440

440

440

440

440

8x50

2x25+8x50

10x50

2x25+10x50

12x50

12x60

450

500

550

600

660

AKRE 450/440; 7%

AKRE 500/440; 7%

AKRE 550/440; 7%

AKRE 600/440; 7%

AKRE 660/440; 7%

1600x2270x600

1600x2270x600

1600x2270x600

1600x2270x600

1600x2270x600

1600x2270x600

Type Pover(kVar)

Voltage (V)



7/5

240 525

525

525

525

525

4x60

6x60

30+4x60

2x30+4x60

1x30+5x60

270

300

330

360

1200x2270x600

1200x2270x600

1200x2270x600

1200x2270x600

1200x2270x600

Type Pover(kVar)

Voltage (V)


AKRE 90/525; 14%

AKRE 120/525; 14%

AKRE 150/525; 14%

AKRE 180/525; 14%

AKRE 210/525; 14%

90 525

525

525

525

525

2x15+2x30

4x30

3x30+1x60

2x30+2x60

1x30+3x60

120

150

180

210

850x1950x520

850x1950x520

850x1950x520

850x1950x520

850x1950x520

Type Pover(kVar)

Voltage (V)


AKRE 45/525; 14%

AKRE 60/525; 14%

AKRE 75/525; 14%

45 525

525

525

3x15

4x15

5x15

60

75

850x1450x360

850x1450x360

850x1450x360

Type Pover(kVar)

Voltage (V)


Automatic Power Factor correction unit from 90 to 210kVAr/525V; p=14%



Semi-Automatic Power Factor correction unit from 10 to 60kVAr/440V;



AKRE 240/525; 14%

390 525

525

525

525

525

525

525

1x30+6x60

1x30+7x60

1x30+8x60

1x30+9x60

1x30+10x60

1x30+11x60

12x60

450

510

570

630

690

720

1600x2270x600

1600x2270x600

1600x2270x600

1600x2270x600

1600x2270x600

1600x2270x600

1600x2270x600

Type Pover(kVar)

Voltage (V)


AKRE 390/525; 14%

AKRE 450/525; 14%

AKRE 510/525; 14%

AKRE 570/525; 14%

AKRE 630/525; 14%

AKRE 690/525; 14%

AKRE 720/525; 14%

AKRE 270/525; 14%

AKRE 300/525; 14%

AKRE 330/525; 14%

AKRE 360/525; 14%

PAKRE 10/440

PAKRE 15/440

PAKRE 20/440

PAKRE 25/440

PAKRE 30/440

PAKRE 40/440

PAKRE 50/440

PAKRE 60/440

10 440

440

440

440

440

440

440

440

15

20

25

30

40

50

60

500x600x225

500x600x225

500x600x225

500x600x225

500x600x225

500x600x225

500x600x225

500x600x225

Type Pover(kVar)

Voltage (V)

Dimensions WxHxD

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With detuned filter reactors.Resonance frequency = 134Hz.Blocking factor p%=14%.




automatic power faktor correction unit sistems...

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