Technology of Electrical Automatic

QP-X Combined transducer

QP-X Combined 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 combination in one 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 combination in one 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.

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

Specification

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

Downloads

Brochure of Electrical Transducer

BJ-QPX Transducer Usermanual V1.3