2

Provide customers with a systematic solution to the power supply. the consideration of the electric environment, optimization of load collocation, matching of power supply selection, design of conforming to requirements, excelsior and highly efficient manufacture, timely and perfect maintenance, etc., all of which can fully meet customers’ requirements.

3

Variable frequency power source outputs the alternating current of utility power as the pure sine wave by means of AC→DC→AC conversion. The output frequency and voltage are adjustable within a certain range.

4

AC power source is different from AC speed regulating controller used for motor speed regulation and common AC voltage stabilized power source.

5

The ideal AC power source features stabilized frequency, stabilized voltage, zero internal resistance, and pure sine wave voltage waveform (no distortion).

6

Variable frequency power source is very close to the ideal AC power source.

7

Therefore, the developed countries tend to use the variable frequency power source as the standard power source, so as to provide the electric devices the most excellent power-supplying environment, which is convenient to objectively test the technical performance of the electric devices.

8

The variable frequency power source mainly consists of two types: Linear Amplifying and SPWM Switching.

2

Scientific research

3

Charge of storage battery

4

Communication

5

Electric power DC screen system

2

Household appliances - induction cooker manufacturing industry: heating and aging test Jiangmen refrigeration, the world's top 500 enterprises Whirlpool Shenzhen laboratory, Shaoxing Nepal test centre, to provide a stable and reliable power supply for induction cookers, test the life of induction cookers.

3

Household appliances - air conditioning manufacturing industry: enthalpy difference experiments, the United States Group air conditioning laboratory, to provide accurate, stable, program-controlled test power for laboratory testing, and no interference with other instruments in the laboratory.

4

LED lamp manufacturing industry: LED lamp barrel aging experiments, Changhong device company, testing and calibration of light-emitting panels to provide stable and reliable power for light-emitting panels.

2

High precision virtual value digit display. voltage, current, frequency, active power, and power factor

3

Fast transient response speed, 100% load/unload, stabilized voltage response time within 2MS.

4

Output frequency. 50Hz.60Hz. 45~70H (can customize the frequency 40~499.9Hz )

5

Output voltage. 0~300V/0~500V (customize voltage up to 1000V), can simulate different countries' voltage in the world. Load stabilized voltage precision±0.5% (resistance load)

6

With multiple protection such as. overvoltage, over-current, over-load, over-temperature, and alarm function

The main components are original imported, reliable quality.

Rated Capacity (KVA)

3

6

10

15

20

30

45

60

100

120

400

500

600

Phase Capacity (KVA)

1

2

3.3

5

7

10

15

20

33

40

134

167

200

AC Input

Single phase 220V/50Hz,60Hz

Tri phase 380V/50Hz,60Hz

AC Output

Phase

Trip phase (phase difference 120°±2°)

Output Frequency

45Hz～70Hz，50 Hz，60 Hz，400 Hz；

AC Voltage Output

Low Range

Phase voltage：0V～150V （line voltage：0V～260V）

High Range

Phase voltage：0V～300V （line voltage：0V～520V）

Max Current output

0~150V

8.4A

16.8A

28A

42A

50A

84A

125A

168A

276A

336A

1112A

1400A

1667A

0~300V

4.2A

8.4A

14A

21A

25A

42A

63A

84A

138A

168A

556A

700A

833A

Frequency Stability Rate

≤±0. 1%

Load Stability Rate

±0.5%

Waveform Distortion

≤±2%（resistance load）

Response Time

≤2ms

Indication Resolution

Digit Frequency

4 digit  resolution 0.1Hz

A、B、C
phase can
change optionally

Digit Voltage

4 digit  resolution 0.1V

Digit Current

4 digit  resolution: below 4A：0.001A ;  above 4A：0.01A

Digit Power

4 digit  resolution 1W

Protection

Input no fuse switch, output fuse switch, electronics circuit
speed detect the over voltage, over current, over load, over
temperature, short circuit
and automatic jump protection and alarm.

Cooling

Forced fan cooling

Environment

Operation Temperature

0℃～45℃

Relative Humility

0～90%（non condensing ）

Working Temperature

0℃~45℃, Relative 0～90%（ non-coagulation state ）

Shape

Dimensions (MM)

190*
305*
430

280*
450*
500

620*
320*
620

950*
560*
650

700*

1340*

1280

1700*
1750*
1000

1650*
850*
1090

1650*
800*
1200

Weight(Kg)

30

35

45

60

78

140

170

280

650

1050

1250

1350

1450