ZBW-S50 avr AC automatic voltage regulator

Frequency

50HZ/60HZ

OUTPUT

Rated   voltage

Phase voltage 220V,Line   voltage 380V          (Other   voltage can also be set, such as: 400V, etc.) 

Voltage accuracy

±(1-5)% can be selected(the conventional set   is ±2.5%,other models are determined according to the model)

Response   time

Fast   ,20ms

Wave distortion

No additional distortion (static)

Efficiency

≥98%

Three-phase   unbalance degree 

Automatic balance of three   phase voltage

Delay output

Voltage regulating before output

(keep devices from impact)

Protect

Overvoltage

The output phase voltage is more than 10% (245V), cut off the output or   uninterrupted steering bypass and output fault voltage

Under voltage

The output phase voltage is less than 10% (195V), cut off the output or   uninterrupted steering bypass and output fault voltage

Phase order

Automatic detection of phase ( wrong phase, anti-phase, lack-phase ）and output the   fault reasons

Overload

Electronic inspection, overload 3   minutes to cut off the output, or turn to bypass and output the overload   current

Over-current

Electronic inspection and breaker protection

Short circuit

Electronic inspection and breaker protection

Bypass

Bypass uninterruptedly and   automatically

Display

Voltage

A,B,C,ΣABC   with TRMS respectively on LCD

current

A,B,C,ΣABC   with TRMS respectively on LCD

Working condition

Regulating   voltage state / City electric state

Fault

Lack-phase, wrong phase, anti-phase, overvoltage,   under voltage, overload, fuse break

Human-machine interface

Intelligent man-machine interface operation panel, easy to set and   query parameters

Working mode

Regulating   voltage state & City electric state

Overload   capacity

5 times the rated current for 1 second

Communication   protocol

RS232 or 485 communication   protocol, optional

Adjustments

Simultaneously: AD collected A, B, C phase voltage TRMS to calculate the average   and instruction is given to compensate, can effectively improve   the unbalance of the three-phase voltage

Separately: Three phase voltage is   adjusted to ensure that the three phase voltage is in the range of   accuracy, and is particularly suitable for the single phase load.

Automatically: Microcomputer adjust separately or simultaneously by automatic analysis. 

measuring technique

12 bit AD collecting, PLC digital filter and   TRMS operation

Accurate control

Perfect coordination of   most programmable parts with PLC

Human-machine interface

Set data on panel(Output voltage, Voltage   accuracy , protection function)

Undistorted output waveform

Non-contact zero-crossing switch, the overlying and Compensating principle   of the common frequency, Phase   Locked Logic, sine wave.

Resist harmonic interference

TRMS   voltage detection

Wide load range

Resistance, capacitive, inductive load all can be adapted

Slow start resist impact

Voltage regulating before output

Full protection function

When over-voltage and under   voltage occur, can protect within 1 s or turn to bypass uninterruptedly and automatically, With   perfect phase lack, overload, short circuit protection and the post-fault sound and light alarm   function.

Voltage &current display

Voltage &current TRMS display on LCD