1. product introduction
ZBW series intelligent contactless AC regulator is an AC power supply of a new technology that what Developed by Shanghai EABOO voltage regulator factory, to meet the special needs of sophisticated equipment for power supply. With fast response, high precision regulator, no brush, no contact, no machinery, maintenance free, automatic balance of three-phase voltage and other advantages, is the SBW series of mechanical regulator product upgrading. And in the mechanical processing, medical equipment, printing equipment, radio and television communication systems and other fields to a wide range of good applications, access to the user's praise.
2. Model name
3. Human-machine interface
ZBW series regulator using large screen LCD liquid crystal display, through the LCD can directly display the voltage, current, fault state, working mode and other parameters. The voltage stabilizing precision, the output voltage and the working mode can be set by the panel, and the operation is simple.
4. Technical index
INPUT | Input voltage range | three phase 304V-456V,single phase 176V-264V |
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 | |
5. Product features
Quick response | 12 bit AD collecting,64 points collecting each wave period, PLC digital operation, electronic module compensate quickly |
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 ¤t display | Voltage ¤t TRMS display on LCD |
6 working principle
ZBW series microcomputer non contact AC voltage regulator, using microcomputer (MCU+PLD+12 high-speed AD) intelligent detection, the output command control electronic module (IGBT or SCR) the fast switching principle, through the transformers in the same frequency, PLL, sine wave superposition compensation to maintain output voltage stability.
Extremely fast speed, high voltage regulation precision, automatic balance of three-phase voltage!