Models which are not more series-produced PSCH-4ÒÀ.04.2 PURPOSE AND FIELD OF APPLICATION The meter is designed for accounting of active energy in three-phase three-wire or four-wire power circuits of a.c. with the frequency of 50Hz, independently or as a component of any automated systems for commercial energy accounting (ASKUE). NORMATIVE AND LEGAL BACKING IEC 62052-11:2003 TECHNICAL FEATURES - Internal tasksetter.
- The liquid-crystal display indicates the amount of the consumed active energy in kilowatt-hour with the accuracy of one thousandth of a unit.
- Nonvolatile memory.
- Electronic seal (option).
- Two programmable pulse outputs for commercial and technical accounting.
- RS-485 communication interface.
FUNCTIONAL CAPABILITIES - Exchange of information from a personal computer through RS-485 communication interface.
- Registration and storage of the data on the consumed electrical energy as per each tariff zone with the possibility to scan the information on a liquid-crystal display:
with total accrual accounting; for each of preceding 11 months; with exceeding the power limit. - Registration and storage of energy data as per tariff zones as at the beginning of each half-hour in the course of 1,5 months (power profile).
- Setting power and electrical energy limit.
- Registration and storage of the time data when the meter was energized and de-energized and registration of the time when the meter’s terminal cover was opened.
- Automatic changing-over to ‘summer’ or ‘winter’ time.
- Assigning a tariff schedule for every day of the week, taking into consideration holidays, current time, day of the week, date, month, year, category of a consumer.
- Transmitting a signal from the pulse output to the actuator, which switches on/off the consumer’s load when the consumer exceeds the fixed limits.
- Protection against unauthorized changing of the information, entered and stored in the meter.
TECHNICAL DATA Quantity | Value | Nominal voltage, V | 3õ57,7/100 | Network frequency, Hz | 50±2,5 | Frequency range of measuring network, Hz | from 47,5 to 52,5 | Nominal current, À | 5 | Maximum current, À | 7,5 | Accuracy class | 0,5 S | Sensitivity in each phase, À | 0,005 | Total power consumed by every serial circuit of the meter, at nominal current and rated frequency, V·À | not more than 1 | Power consumed by every voltage circuit at nominal voltage: active, W total, V·À | not more than 0,8 not more than 1,5 | Telemetric output transmission ratio, pulses/kwh: in the main mode in calibration mode | 8000 64000 | Fixed and maximum working temperature range, °Ñ | from – 40 to +55 | Recalibration interval, years | 6 | Average error-free running time, h | 55000 | Average service life till overhaul, years | 30 | Measurements of the meter, mm | 170õ325õ77 | Mass of the meter, kg | not more than 1,5 | |