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Multipurpose meter of active and reactive energy for three-phase four-wire networks, designed to operate in prepayment LEWsystem Apator. The autonomous prepayment mode is complemented by the ability to work in multi-rate credit mode. Advanced calendars functions, controlled by a real-time clock, ensure high flexibility and configurability for both modes of operation.
- Bidirectional and reverse measurement of active and reactive energy
- Measurement of power grid parameters: effective current and voltage, frequency, power factor
- Measurement of instantaneous power and maximum power
- Load profile logging
- Built-in contactor allowing disconnection of the current circuits
- Operating mode: prepayment, credit or switched prepayment-credit
- Advanced prepayment functions
- Manual or automatic ending of a billing period
- Memory of at least 21 billing periods data
- Real-time clock managing two switchable complex calendars
- Calendars supporting 16 time zones and allowing to define any number of special days and permanent holidays, and 240 movable holidays
- Current and power limiting features
- Event logging
- Communication via an optical port
- TV remote control via infrared port
- Control via remote LEW CIU customer interface unit
- LED display for easy readouts in all conditions
Technical data
Model | LEW 3 |
Connection method |
direct |
Rated voltage Un |
3x230/400 |
Reference current Iref |
5 |
Maximum current Imax |
80 |