Theta 30P power transducer is a compact, multi-function panel mount power quality monitor,
which measures, calculates and displays major electrical parameters of three phase power system.
Special Features
True RMS measurement
Fully on-site programmable input voltage range & input current range.
On-site Configurable as Active / Reactive / Apparent Power Transducer / Phase Angle / Power Factor.
On-site selectable output type (DC current / DC voltage).
Single or Dual output.
Accuracy Class 0.2 ( IEC / EN 60688) for Power.
Accuracy Class 0.5 ( IEC / EN 60688) for Phase Angle / Power Factor.
Seven Segment LCD Display.
RS-485 (Modbus) Communication.
Product Features
Measuring Input: AC Current/ Voltage input signal, sine wave or distorted wave form.
Analog Output (Single or dual): Isolated analog output, which can be voltage or current output.
Accuracy: Output signal accuracy class 0.2 as per International Standard IEC/EN 60 688.
Programmable Input / Output: The Transducer can be programmed onsite using front key & display or through programming port (COM) or through RS-485.
LED Indication: LED indication for power on and output type. (Current output: Red LED, Voltage output: Green LED).
Display Module (Optional): Optional 7 segment LCD display with backlit & keypad. For displaying measured parameters & onsite configuration of Input / Output.
RS485 Communication: Optional RS485 communication is available. For reading measured parameters & onsite configuration of Input / Output.
Application
The Transducer is used to measure and convert active, reactive, apparent power, Phase angle & Power Factor of
a Single phase or three-phase AC system with balanced or unbalanced load into a proportional load independent
DC current or voltage output signal.
Measured Parameters: Active Power / Reactive Powew / Apparent Power / Phase Angle / Power Factor
Nominal Voltage Input (UN) |
Nominal input Voltage (PT Secondary range) AC RMS |
100V ≤ UN ≤ 500 VL-L |
PT Primary range |
100V to 692 kVL-L |
Nominal Frequency FN |
25...60 Hz |
Overload Capacity |
1.2 * UN continuously
2* UN for 1 second, repeated 10 times at 10 minutes intervals (UN maximum 300V with power supply powered from measuring input). |
Nominal Current Input (IN) |
Nominal input Current IN (AC RMS) (CT Secondary range) |
1 A ≤ IN ≤ 5 A |
CT Primary range |
1 A to 9999 A |
Nominal Frequency FN |
45.....66 Hz |
Nominal input Current burden |
< 0.2VA per phase at IN |
Overload Capacity |
1.2 * IN continuously,
10* IN for 3 seconds, repeated 5 times at 5 minutes intervals,
50* IN for 1 second, repeated 1 time at 1 hour nterval (max 250 A). |
No need of external potentiometer. User can set full scale output for desired input with the help of programmable CT secondary. |
Measuring output Y (Single or Optional Dual) |
Output type |
Load independent DC Voltage or DC Current (Onsite selectable through DIP switches & programming.) |
Load independent DC output (Y) |
Unipolar: 0…20mA / 4…20mA OR 0…10V
Bipolar: -20mA...0... +20mA OR -10V...0…+10V |
Output burden with DC current output Signal |
0 ≤ R ≤ 15V/Y2 |
Output burden with DC voltage output Signal Y |
Y2 / (2 mA) ≤ R ≤ ∞ |
Current limit under overload R=0 |
≤ 1.25 * Y2 with current output | ≤ 100 mA with voltage output |
Voltage limit under R=∞ |
≤ 1.25 * Y2 with voltage output. ≤ 30 V with current output |
Residual Ripple in Output signal |
≤ 1% pk-pk |
Response Time |
< 750 msec |
Safety |
Protection Class |
II (Protection Isolated, EN 61 010) |
Protection |
IP 40, housing according to EN 60529
IP 20, terminal according to EN 60529 |
Pollution degree |
2 |
Installation Category |
III |
Insulation Voltage |
1min. ( EN 61 010-1)
7700VDC, Input versus outer surface
5200VDC, Input versus all other circuits
5200VDC, Auxiliary supply versus outer surface and output
690VDC, Output versus output versus each other versus outer surface. |
|
Environmental
Operating temperature: 0°C...23°C...45°C (usage group II).
Storage temperature: -40°C to 70°C.
Relative humidity of annual mean: ≤ 75%.
Altitude: up to 2000m max
Installation Data
Mechanical Housing: Lexan 940 (polycarbonate) Flammability Class V-o acc to UL 94, self extinguishing, non dripping, free of halogen with indirect wire pressure.
Mounting position: Rail mounting / Wall mounting.
Weight: Approx, 0.4 kg.
Ambient Tests
IEC 60068-2-6: Vibration.
Acceleration: ± 2 g.
Frequency range: 10...150...10Hz, rate of frequency sweep: 1 octave/minute.
Number of cycles: 10, in each of the three axes.
IEC 60068-2-27: Shock.
Acceleration: 3 x 50g. 3 shocks in each in 6 directions.
EN 60 068-2-1/-2/-3: Cold, Dry heat, Damp heat.
IEC 61000-4-2/-3/-4/-5/-6 EN 55011: Electromagnetic compatibility.
