Universal Substation Meters (USM)
Overview
USM-1 (Universal Substation Meter) Smart Meters are built to support substations and industrial energy consumers in fetching their energy-demand patterns. The advanced LCD display and remote-access feature of USM-1 make it an apt fit for substations and industries.
Technical Specifications
Measurement & Range
- kWh, kvarh and kVAh digital metering in import and export directions
- -10 to +60ºC operational temperature
- Three phase power supply: 318V L-N or 550V L-L
Battery and Storage
- EEPROM-storage (Minimum data retention of 20 years)
- Internal Real-time Clock with Battery Backup
Power Factor
- Voltage per phase
- Current per phase
- Total three-phase active power
- Total three-phase reactive power
- Total three-phase apparent power
Communication Capabilities
- Optical Communication port complies with IEC62056-21 Mode E, 9600bps
- RS485, 9600bps
- Ethernet port
International Standards
- IEC62052-11
- IEC62053-22
- IEC62053-23
Other Specifications
- 8 multiple tariffs according to time of use
- Up to 620 special days
- 20 regular days (repeated every year e.g. national day)
- 600 irregular days for 30 years (each year 20 days)
- Utility Sealed battery door and reset switch.
- Up to 10 seasons
- Up to 10 weeks
- Up to 31 days
- Each day up to 10 Scripts
