Features
- 0.5 measurement accuracy
- RMS measurement and output
- 35mm Din rail mounting
- RS485 port optional
- Three phase independent measurement for 3P4W loops (optional)
- Support customized parameters
Technology of Electrical Automatic
QP-X AC Power Transducer
QP-X AC Power Transducer
QP-X series AC power transducer converts three phase ac signals into a load independent dc signal proportional to voltage(V), current(A), active power (watt) and reactive power (var) Frequency(Hz) etc. Three output signals are combined in one transducer so this ac power transducer can be called 3 phase voltage transducer.
The current and voltage signals are passed into the circuit via precision instrument transformers to provide galvanic isolation between the input circuits and the transducer circuitry. Each pair of current and voltage signals is mathematically multiplied together to produce a product signal proportional to true power and independent of wave shape and phase angle.
QP-X series AC power transducer converts three phase ac signals into a load independent dc signal proportional to voltage(V), current(A), active power (watt) and reactive power (var) Frequency(Hz) etc. Three output signals are combined in one transducer so this ac power transducer can be called 3 phase voltage transducer.
The current and voltage signals are passed into the circuit via precision instrument transformers to provide galvanic isolation between the input circuits and the transducer circuitry. Each pair of current and voltage signals is mathematically multiplied together to produce a product signal proportional to true power and independent of wave shape and phase angle.
Specifications
Power Signal Inputs:
| Nominal input | ../1A or ../5A C.T. connected |
| 110V, 230V, 400V, 415V ac | |
| Power consumption | <1 VA voltage |
| <0.2 VA current | |
| Overload capacity | 1.2 times continuous |
| 5sec @ 10 times of rated current 2sec @ 2 times of rated voltage |
|
| Frequency range | 50Hz, 60Hz |
Measurment Output:
| Standard outputs (others on request) |
4~20mA, 0~5V, |
| 0~20mA; | |
| 5~10V; | |
| 0~10V; | |
| Maximum load | <750 Ω (0-20mA, 4-20mA) |
| >2000 Ω (voltage output) | |
| Ripple | <1% peak to peak |
| Response time | <250ms 0-90% |
| <500ms 0-99% |
Measurement Accuracy:
| Class | ±0.5 % complying with IEC 60688 |
| Accurate range | 0 – 120% I |
| Frequency influence | <0.02% per Hz |
| Load influence | <0.25% of F.S. for specific load range |
Auxiliary Supply:
| Rating | 85-265Vac/dc, Optional 12V, 24V, 48VDC |
| Consumption | <3VA |
Galvanic isolation between I/O and AUX:
| Test voltage | 2KV RMS 50Hz for 1 minute |
| impulse | 4KV 1.2/50µsec waveform |
Temperature requirements:
| Operating | -10~55C |
| Storage | -40~70C, 20 ~ 93%RH ; Noncondensing |
Selectable Models
| BJ-QPVX | Three phase voltage transducer 3* Output |
| BJ-QPAX | Three phase current transducer 3* Output |
| BJ-QPW | Three phase active power transducer 3* Output |
| BJ-QPK | Three phase reactive power transducer 3* Output |
| BJ-QPKW | Three phase active & reactive power combined transducer 2* Output |
| BJ-QPCX | Three phase combine transducer 4* Output, with RS485, Accept customer order |
