Type

KRD

KRS

Capacity

5KVA-100kva

5KVA-1000kva

AC Input voltage

Phase

Single(or three phase)

Single 

Voltage

220V±10%

220 or 380V±10%

Frequency

50Hz±5%

50Hz±5%

AC Output voltage

Phase

Single

Three

Phase/Line voltage

0-300V

(can be continues adjustable)

0-520V/0-300V    (Adjustable)

Frequency

40.0-499.9Hz(can be continues adjustable)

High phase current

20.8A

8.3A

Low phase current

41.6A

16.6A

Voltage accuracy

±1% (110Vor220V ±10%)

±1.5% (other range)

Frequency stability

≤0.1%

Voltage stability

±1%

Harmonic distortion

±2% (resistive load)

Crest factor

1.41±0.10

Line regulation

≤1%

Load regulation

≤1%

Efficiency

≥98% 

Power factor

0.85

Response time

Max. 2ms

Meter & Resolution

Frequency meter

Resolution

0.1Hz,4 digits LED

Voltmeter

0.1V,4 digits LED

Ammeter

0.001A/0.1A,4 digits LED

Power meter

0.01W/0.1kW,4 digits LED

Power factor meter

0.01,3 digits LED

Preset function

Preset output voltage, output frequency and output voltage floating ratio

Fast key function

Fast key for output voltage switch, frequency switch, output voltage floating selection

Alarm function

Audible and visual alarm once protective device activated; display error code on LED

Protection

Fuse switch for input and output;

Fast-response circuit to detect over voltage, over current, over load, over temperature and short circuit; Output will be shut down in protection mode.

Protection

Fuse switch for input and output;

Fast-response circuit to detect over voltage, over current, over load, over temperature and short circuit; Output will be shut down in protection mode.

Cooling

fan cooling

Pressure insulation

1800Vac/5Ma/1min

Insulation reactance

Above 500Vdc/20MΩ

Operation environment

Working temperature: 0℃-40℃

Relative humidity: ≤90% RH(Non-condensing

Altitude: 1500m