Function and Purpose
The ZT-830 series intelligent low-voltage reactive power automatic compensation controller (referred to as the controller) is a new generation of reactive power compensation controllers developed using dedicated power parameter acquisition chips and MCU processors. The product has an elegant appearance and is convenient to install and use. It realizes human-machine interaction through a digital tube display and buttons. It can be connected to smart capacitors through a 485 communication data line
Detailed Parameters
Parameter Table 1
| Parameter Category | Parameter Item | Parameter Value |
|---|
| System Parameters | Environmental Temperature | -25℃～+40℃ |
| Relative Humidity | 40℃≤50%, 20℃≤90% |
| Altitude | ≤2000m |
| Sampling Voltage | Common Compensation 380VAC±20%, Mixed Compensation 220VAC±20%×3 |
| Sampling Current | 150mA~5A, Input Impedance ≤0.1Ω, Current Sampling Has No Polarity. |
Current sampling of custom four-quadrant photovoltaic dedicated program has polarityRated frequency50Hz±5%Power factor cut-off thresholdSet range (0.90~0.81)Power factor input thresholdSet range (0.80~1.00)Overvoltage threshold settingCommon compensation set range (400V~480V)450S-UHHybrid compensation set range (240V~280V)260Overvoltage alarmCommon compensation set range (380V~460V)425S-UOHybrid compensation set range (220V~260V)245Undervoltage threshold settingCommon compensation set range (280V~380V)360S-ULHybrid compensation set range (170V~220V)208Delay time settingDelay set range (5~250)s10S-YSUndervoltage threshold settingUndervoltage set range (50~500)mA100S-ILCurrent ratio setting1 for power factor mode, no need to set ratio, set actual ratio CT (ratio) for reactive mode, set range (1~5000)1S-CTVoltage harmonic distortion total rateSet range (3~60%)4S-UTCircuit mode0 is dual circuit, 1 is single circuit, ZT-830GB, ZT-830FB0S-OTZT-830GBL, ZT-830FBL1Operating modeAuto / Manual operation, simulation switching testOutput control signalRS485 communicationNetworked numberMaximum number of common compensation control units: 30 unitsMaximum number of hybrid compensation control units: common compensation 20 units + separate compensation 10 unitsMaximum power consumption5WTightening torqueTerminal screw torque ≤ 0.5N·mSecurity protectionIP40Installation methodEmbeddedWeightApproximately 0.8kgPerformance indicatorsEnvironmental temperature-25℃～+40℃Relative humidity40℃≤50%, 20℃≤90%Altitude≤2000mSampling voltageCommon compensation 380VAC±20%, impedance ≥ 1mΩ Hybrid compensation 220VAC±20%×3, impedance ≥ 1mΩSampling current50mA~6A, input impedance ≤ 0.1Ω, current sampling has no polarityRated frequency45Hz~65Hz automatic adaptationUndervoltage lockout≤ 150 mA, (≤ 50 mA protection and cut off, (50~150)mA between not input nor cut off)Input factorInductive 0.70~ Capacitive 0.70Disconnection factorInductive 0.70~ Capacitive 0.70Switching delay (s)10~18015Overvoltage threshold (V)Common compensation 410~480430Hybrid compensation 240~280250THDV threshold (%)Off, 5~907CT primary value setting5~4000800Separate compensation circuit number (3/6/9/12, ZT-830FBD)6Capacitor configuration (kvar)OFF-60Capacitor discharge (s)10~24060Maximum power consumption (W)6Output circuit number12 circuits (number of circuits 1~12 can be set)12Output control signalDC12VDC12VMounting hole size (mm)113×113Tightening torqueTerminal screw torque ≤ 0.5N·mSecurity protectionIP30Installation methodEmbeddedWeightAround 0.76kgProtection functionEnvironmental temperature-25℃～+40℃Relative humidity40℃≤50%, 20℃≤90%Altitude≤2000mRated voltageCommon compensation 220VAC±15%×3, mixed compensation 220VAC±15%×3Sampling current50mA~6A, input impedance ≤ 0.1Ω, current sampling is polarity-free, this model can be customized for photovoltaic special programs
Parameter Table 2
| Parameter category | Parameter item | Parameter value |
|---|
| ZT-830BLZT-830BL (mixed compensation) | Rated frequency | 50Hz±5% |
| Sensitivity | ≤ 0.2A |
| Engagement factor | 0.96 |
| Disengagement factor | 0.99 |
| Engagement and disengagement delay (s) | 10 |
| CT ratio setting (ratio) | 100 |
| Overvoltage threshold (V) | Common compensation |
| | Mixed compensation |
| Overcurrent protection | Function not available, cannot be modified |
| Harmonic setting (%) | Function not available, cannot be modified |
| Maximum power consumption (W) | 5 |
| Number of networked units | Maximum number of controlled units for common compensation: 30 units |
| | Maximum number of controlled units for mixed compensation: 20 units of common compensation + 10 units of separate compensation |
| Output control signal | RS485 |
| Mounting hole size (mm) | 111×111 |
| Tightening torque | Terminal screw torque ≤ 0.5N·m |
| Security protection | IP30 |
| Installation method | Embedded |
| Weight | Around 0.76kg |
