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LP-2W3 Three Phase Watt Transducer
LP-2W3H Three Phase Watt Transducer with kWh Pulse Output
The LP-2W3 three phase watt transducer converts ac current and voltage signals into a bi-directional dc output signal proportional to the active power flowing in the circuit.
The transducer is designed for 3 phase 3 wire systems
with an unbalanced load.
Optional output for scalable kW-hour pulses. (LP-2W3H)
Ordering information: LP-2W3, inputs including CT & VT ratios, output, calibration, power supply.
Example: LP-2W3, inputs 500/5A 11kV/110V, output -10mA to 0 to +10mA,
-10MW to 0 to +10MW, 110Vdc supply
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| Basic Specifications: |
| Inputs | AC current and voltage, 3-phase 3 wire unbalanced load |
| Current | : 0 - 1A or 0 - 5A (others on request) |
| Voltage | : All ac system voltages to 440V |
| Frequency | : 50Hz, 60Hz |
| Output | Load independent bi-directional dc current and voltage |
| (others on request) | : -10mA to 0 to 10mA dc <1500Ω load |
| | : -20mA to 0 to 20mA dc <750Ω load |
| | : 4 to 20mA dc <750Ω load |
| | : -5V to 0 to 5V dc >2kΩ load |
| | : -10V to 0 to 10V dc >2kΩ load |
| Pulse | : Relay or opto coupler, scalable kW-hour pulses |
| | : 2A, 110V, <10W dc (non-inductive) relay |
| | : 50V, 50mA, 100mW max. optocoupler |
| Accuracy | | : Class 0.5 to IEC 60688 |
| Range | : 0 to 120% of nominal input |
| Power Supply | | : 24V, 110V, 230-240V, 400-415V ac ±20%, 1.5VA |
| | : 24V dc ±20% or 110V/125V dc (88V-138V), 2W |
| Isolation | Galvanic isolation between inputs, output circuit and supply |
| Test voltage | : 4kV 50Hz ac for 1 minute |
| Temperature | Operating | : 0°C to +23°C to +60°C |
| EMC Compliance | : AS/NZS 61000.6.3:2012 |
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