300kVA No Maintenance Voltage Stabilizer, Static AC AVR 300kVA

Operation method

Intelligent SCR control

Input Voltage range

380V/220V( can customize various voltage)

Input frequency

Plus or minus ±15%~±60% (larger range can be customized)

Output rated voltage

380V/220V( can customize various voltage)

Output Voltage accuracy

±1%

Filter distortion

No additional waveform distortion ( static state)

Efficiency

≥98%

Power factor

0.8

Response time

≤0.03s

Anti-interference

Arrester, EMI filter, LC filter(optional)

Over-voltage protection

Output phase voltage 10%, cut-off input or transfer to bypass

Overload protection

Electronic detection, cut off input in three minutes

Bypass protection

Automatically transfer to bypass in case of failure

Phase lack protection

Cut-off automatically

Overload ability

5 time rated current 1 second

Liquid crystal display

Voltage, Current, Abnormal

Alarm

LED display and alarm

Ambient temperature

-15~45°C

Altitude

<4000M

Noise

<45dB(1 m distance)

Cooling system

Cooling fan

Technical index

SCR Type voltage regulator(SPZW)

Carbon brush regulator(AVR)

Working principle

The use of microcomputer intelligent detection, output commands to control the controllable silicon module (SCR) of fast switching, the same frequency, phase locked through a transformer, sine wave superimposed compensation to maintain the stability of the output voltage, fast response speed, no carbon brush, no contact, no mechanical, no spark ,three-phase distribution.

Rely on the carbon brush rack in regulating transformer on the mobile to change the compensation transformer the secondary winding voltage to maintain the stability of the output voltage. Carbon brush, a contact point, mechanical transmission.

Features

Three-phase regulation, no contact, no abrasion, no spark and maintenance free, Regulator speed to 0.05s can be accessed by all types of generators.

Regular intervals maintenance, slow regulated,

three-phase unified adjustment,

unbalance output,

Carbon brush wear, motor malfunction by jammed , coil spark..

Response time

Fast, stable to the rated voltage value of the time less than 30ms, capable of suppressing input low voltage surge, immediate and effective protection of precision equipment.

Slow (3~5s), motor adjust( mechanical)

Parameter setting

Display button to set the parameters, convenient, user-friendly

The analog potentiometer adjustment , or can be set

Service life

Average fault-free uninterrupted work more than 100000 hours

Carbon brush is easy to wear, motor often jammed, the average life expectancy of 8760 hours.

waveform distortion

No additional waveform distortion(static state)

No additional waveform distortion(static state)

Efficiency

98%

95%

Leakage magnetic interference

None

None

Grid pollution

None

None

Slow starting impact

All products have a fist voltage output function

Conventional products do not have this feature.

The protection response time

Abnormal situation after 30ms protection

Conventional products do not have this feature.

Protection Function

With overload, short load, short circuit, lack of phases, and automatically bypass protection function.

With overload, short load, and manual bypass protection function.