Advanced Electric Systems LLC.                                                                                        ​​languages:  

Advanced Electric Systems LLC.                                                                                        ​​languages:  

Ukraine, Kharkiv, Rzhevsky lane 12, tel.: +38(067)2629177

Medium voltage variable frequency drives, medium voltage soft starters, dry-type transformers, dry-type reactors

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PCHVA series high voltage multilevel inverter 6 kV, 10 kV

PCHVA series medium voltage variable frequency drive 3 kV, 3.3 kV, 6 kV, 6.6 kV, 10 kV

    The  PCHVA series medium voltage variable frequency drive designed and manufactured by Advanced Electric Systems LLC has prominent performance and high reliability with low cost. It is of AC-DC-AC voltage type inverter with main loop of multi-level topology circuit. The control mode adopts SPWM technology. And the input uses isolated transformer of multiple technology, while the output is fulfilled by the solution of phase-shifting tandem multi-unit and medium voltage to medium voltage direct conversion.

Many years of technical experience enabled Advanced Electric Systems LLC. and its staff to have developed inverters with low harmonic content, which is in a leading level in domestic. Perfect output voltage sine wave provides the inverter with stability of motor's operation during the whole speed regulation range. The low input current harmonics almost has no any disturbance to the grid and this ensures the operation reliability of the surrounding electric equipments.

This series inverter can drive and regulate the medium voltage motor in almost all kinds of application area. The speed regulation is smooth, and the efficiency and power factor is enviable. In particular, nowadays the world is in short of energy. PCHVA inverter can bring great economic effect when used for blowers and pumps.

This series inverter consists of three main parts, transformer cabinet is on the left, and power unit cabinet is in the middle, while control cabinet is on the right. To improve the stability of the control circuit and to make the debugging more convenient, the control cabinet door was put on the right of the machine. This series product adopts cabinet structure with forced air cooling. And the big capacity machine adopts the cooling mode of water-cooled, air-closed circulation. The wiring terminal of input and output of the complete machine was placed on the lower left back. It is easy for connection

Application area

PCHVA medium voltage variable frequency drive has been widely used for the medium voltage motor's speed regulation, energy saving, soft starting and intelligent control in the area of power supply, iron and steel, HVAC, oil, construction, mine and etc.

*Heat power station: Coal grinding machine, blower, draught fan, dust exhaust fan, circulating pump, water-feeding pump.
*Iron and steel plant, metallurgical plant: Water-feeding pump, dust exhaust fan, draught fan, oxygenator.
*Mine: Slurry pump, ventilator.
*Oil: Water injection pump, oil pump.
*Chemical plant: Compressor, blower, circulating pump.
*draw off pump, supply pump, purifying pump, sewage pump in urban power supply and sewage disposal:
*The grinder, pump, draught fan, dust fan, supply blower in cement plant and ceramic plant
*others: The blower for medicine, paper making, food

 


Feature

*Years of accumulative technology of high-power drive increases the product's power supply to be 8000kw.
Unique low-induction bus structure ensures stable operation of the power unit.
Distinctive cooling design and components layout enable the inverter to work more reliably.
*Non-disturbance switch between grid frequency and inverted frequency makes sure that the equipments can work uninterruptedly.

Technical specification of PCHVA series frequency inverter mentioned below

Specifications

PCHVA-M-T30

077

096

120

154

192

240

290

 

 

 

 

 

 

 

 

 

 

 

Output

Capacity of drive (kVA)

400

500

630

800

1000

1250

1600

 

 

 

 

 

 

 

 

 

 

 

Power of adaptive motor (kW)

315

400

500

630

800

1000

1250

 

 

 

 

 

 

 

 

 

 

 

Rated output current (A)

077

096

120

154

192

240

308

 

 

 

 

 

 

 

 

 

 

 

Number of serial units per phase

5

 

 

 

 

 

 

 

 

 

 

 

Outline dimensions (W×H×D)

3700×2350×1100

 4200×2450×1200

 6400×2750×1300

 

 

 

 

 

 

 

 

 

 

 

Weight (Kg)

35004200

40006000

60008550

 

 

 

 

 

 

 

 

 

 

 

Specifications

PCHVA-M-T60

39

48

61

77

96

120

154

173

192

220

240

304

384

480

540

600

 

 

Output

Capacity of drive (kVA)

400

500

630

800

1000

1250

1600

1800

2000

2250

2500

3150

4000

5000

5600

6250

 

 

Power of adaptive motor (kW)

315

400

500

630

800

1000

1250

1400

1600

1800

2000

2500

3150

4000

4500

5000

 

 

Rated output current (A)

39

48

61

77

96

120

154

173

192

220

240

304

384

480

540

600

 

 

Number of serial units per phase

6

 

 

Outline dimensions (W×H×D)

3350×2350×1100

3700×2350×1100

4200×2450×1200

6400×2750×1300

6500×3300×2100

 

 

Weight (Kg)

25002800

30503850

44004850

65009050

1230014400

 

 

Specifications

PCHVA-M-T100

23

29

36

46

58

72

92

104

115

130

144

182

230

290

323

360

433

580

Output

Capacity of drive (kVA)

400

500

630

800

1000

1250

1600

1800

2000

2250

2500

3150

4000

5000

5600

6250

7500

10000

Power of adaptive motor (kW)

315

400

500

630

800

1000

1250

1400

1600

1800

2000

2500

3150

4000

4500

5000

6000

8000

Rated output current (A)

23

29

36

46

58

72

92

104

115

130

144

182

230

290

323

360

433

580

Outline dimensions (W×H×D)

4300×2350×1100

4750×2350×1200

5600×2750×1200

8500×2750×1300

8200×3300×2100

Weight (Kg)

30003850

42505300

61507950

1020012800

1600022300

Number of serial units per phase

9

Power supply

Input frequency

50/60 Hz+3%

Input voltage

T30: 3 kV, T60: 6 kV, T100: 10 kV (-20% ~ +15%)

Allowed power failure time

200 ms

Input power factor

> 0.97 (under a rated load)

Efficiency

> 96% (under a rated load); > 98% for the drive part

Control features

Control mode

AC-DC-AC&DC high voltage connection mode of PWM serial phase-shift overlaid wave of sine wave

Output frequency

0 ~ 50 Hz

Precision of output frequency

0.1 Hz

Overload capability

120% (1 minute), 150% (2s), 160% (immediate protection); heavy-load model: 150% (1 minute), 180% (2s), 200% (immediate protection)

Acceleration and deceleration time

4 ~ 1200s

Analog input

0~5 V, 0~20 mA, 4~20 mA (2 ports)

Analog output

0~10 V, 4~20 mA voltage, current and frequency optional (3 channels) output is for 5 variables

Analog feedback

0~5 V, 4~20 mA (2 ports)

Host communication

Isolation RS485 interface 

Boolean input/output

14-channel/10-channel

Protection function

Overcurrent, overload, short-circuit, 3-phase current imbalance, transient power failure, input/output phase loss, overvoltage, undervoltage, body overheat, shutdown caused by external fault, automatic bypass of power unit

Environment

Operation environment temperature

0°C ~ + 40°C

Storage and transport temperature

-40°C ~ +70°C

Cooling mode

Compulsory air cooling

Environment humidity

< 90% (no condensate)

Altitude

< 1,000 m

Protection grade

IP30

 

Below is an example PCHVA-M-600-T60 UKhL.4 shows the structure of designation of  the frequency inverter:

 

                                      

Medium voltage                                         PCHV

frequency inverter

 

Type of motor                                                        A

Asynchronous

 

Type of PWM conversion                                            М

Multilevel

Rated output current                                                            600

 600

Rated output voltage                                                                     T60

6000 V 3-phase

 

Placement category                                                                                 UKhL.4

 according GOST15150

 

Block diagram of PCHVA

Functional diagram of the PCHVA power cell

The power cell consists of a power input fuse R, S, T, three-phase bridge rectifier, capacitor filter, one-phase inverter Q1-Q4, the bypass consists of a single-phase  rectifier and K thyristor, the output terminals of the power cell are L1, L2.   

 Curves of output voltage and current of the PCHVA medium voltage variable frequency drive