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KPM53 Three phase smart digital power meter
KPM53 Three phase smart digital power meter
KPM53 three phase smart digital power meter is used to measure three-phase electrical parameters, display, power statistics, power quality analysis, digital input / output and network communications in one. With high precision Class 0.5s, strong isolation, stable performance, anti-interference ability, etc.; the device also has a very strong expansion capabilities, such as monitoring of external switching action, 4-20mA analog output. Also the network management of the instrument can be realized through RS-485 / Modbus communication protocol.
Function
Model Selection
Specification
Application scenerio
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Function
- Digital panel three phase smart digital power meter
- Full electrical parameter measurement: UL-L, UL-N, I, F, PF, P, Q, S, four-quadrant energy, etc.
- High accuracy: U Class 0.2;I Class 0.2.
- High accuracy: P Class 0.5S; Active energy Class 0.5S.
- Power quality analysis:
- 2-31st harmonic analysis;I/U Total distortion rate.
- Crest coefficient;Valley coefficient.
- Current, Voltage imbalance rate.
- Record function:
- Monthly average power factor and power data for the last three months.
- Electrical parameters maximum and minimum data.
- Meter working time, load time statics.
- Communication: RS485/Modbus-RTU;Profibus-DP
- Optional function:
- 2 digital inputs;
- 2 digital outputs
- PT100 temperature monitoring;
- 4-20mA analog output
Model Selection
Specification
| Working power source | Operating Voltage | AC 85-265V/ DC 80-310V |
| Rated power consumption | < 3VA | |
| Input voltage | Rated voltage | 57.7/100V,220/380V,380/660V |
| Overvoltage capability | 1.2 times rated voltage allowed, continuous work; 2 times the rated voltage allowed 10S |
|
| Rated power consumption | <0.5VA(per phase) | |
| Measurement range | LN：50~260VAC， LL：90~450VAC | |
| Input current | Rated current | Default 5A, input range 1-6A; optional 1A, input range 1-1.2A |
| Overload capacity | 1.2 times rated current allowed, continuous work; 20 times the rated current allowed 1S |
|
| Rated power consumption | ＜0.75VA/phase（5A）; <0.45VA/phase (1A) | |
| Measurement range | 5A：0~6A； 1A：0~1.2A | |
| Power quality monitor | Harmonic measurement | U/I 2-31st harmonic distortion rate |
| Harmonic distortion rate | Phase voltage，Phase current | |
| Imbalance rate | Voltage，Current | |
| Measurement accuracy | Voltage | ±0.2%（0.01V） |
| Current | ±0.2%（0.01A） | |
| Active power | ±0.5%（0.01W） | |
| Reactive power | ±2.0%（0.01var） | |
| Power factor | ±0.5%（0.001） | |
| Frequency | ±0.02 (0.01Hz) | |
| Active energy | ±0.5%（0.1kwh） | |
| Reactive energy | ±2.0%（0.1kvarh） | |
| Temperature | ±1℃（1℃） | |
| Communication | communication port | RS485，Photoelectric isolation interface |
| Communication protocol | Modbus-RTU, 1200-38400BPS Probibus-DP，9600-12Mbps |
|
| DI & DO | Switch value input | 2-way passive main line contact DI input, internal supply DC24V power supply |
| Relay output | 2-Way DO output, contact capacity 250VAC / 5A, 30VDC / 5A | |
| Analog output | Output range 4-20mA, overload 1.2 times | |
| Temperature input | Temperature range 0-100℃ | |
| Working environment | Operating temperature | -25℃ ~ +70℃ |
| Storage temperature | -30℃ ~ +75℃ | |
| Relative humidity | 5% ~ 95% No condensation | |
| Altitude | Not more than 4000m | |
| Electrical insulation |
Dielectric strength | Power frequency voltage AC 2kV, working time 1 min |
| Insulation resistance | ＞50MΩ | |
| Impact voltage | 5kV (Peak),1.2/50us | |
| Electromagnetic Compatibility | Electrostatic discharge immunity | IEC61000-4-3, level 4 |
| Fast pulse group immunity | IEC61000-4-4, level 4 | |
| Surge immunity | IEC61000-4-5, level 4 | |
| Power frequency magnetic field immunity | IEC61000-4-8, level 4 |
Application scenerio
KPM53ZRK High-voltage three-phase three-wire typical wiring diagram
KPM53ZRK Low-voltage three-phase four-wire typical wiring diagram
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