Standard and Compliance
Ø IEC 62052-11: Electricity metering equipment (a.c.) – General requirements, tests and test conditions – Part 11: Metering equipment
Ø IEC 62053-21: Electricity metering equipment (a.c.) – Particular requirements – Part 21: Static meter for active energy (classes 1 and 2)
Ø IEC 62055-41: Electricity metering – Payment systems – Part 41: Standard transfer specification (STS) - Application layer protocol for one-way token carrier systems
Ø DLMS/COSEM: Device Language Message Specification/Companion specification for Energy Metering
Product Features
Ø Non-volatile memory to store meter data without the use of a backup battery
Ø Support local/remote firmware upgrades.
Ø Split design, UIU with keypad installed in customer premise to monitor meter use
Main Functions
Measurements
Ø kWh (import, export and absolute)
Ø Maximum kW demand (import, export)
Ø Cumulative kW demand (import, export)
Ø Instantaneous value of voltage, current, phase angle, active power, power factor
Ø Current date and time
Ø Frequency
Ø Neutral line current measurement
Billing
Ø Automatic monthly billing reset on 00:00:00 of the 1st day in each month, configurable
Ø Remotely billing reset from AMI central system
Ø Up to 12 months of data in meter memory
Prepayment Functions
Ø Support online prepayment remotely from the AMI central system
Ø Low balance alert by audible alarm & LED alarm to remind user to top up
Ø Support emergency and friendly holiday mode
Ø STS/CTS mode switchable
Ø Prepaid/postpaid mode switchable
Ø A standard 12-key keypad on UIU with audio feedback upon key press
Load Profiles
Ø Record up to 100 days of 15-minute load profiles with 16 channels on a FIFO basis.
Ø Load profile interval configurable from 1-60 minutes
Tariff Functions
Ø Time of Use (TOU) measurement of import and export energies (kWh) and import and export demands (kW) (up to 4 tariffs, 12 seasons, 12 weeks, 16 switches, 100 special days)
Ø Internal battery to maintain clock and calendar
Power Quality
Ø Current reverse
Ø Over-voltage and under-voltage detection with a configurable time threshold
Ø Long and short outage detection with a configurable time threshold
Ø Over current detection with a configurable time threshold
Ø All power quality events will be recorded on meter memory
Anti-tamper
Ø Detection of terminal, external magnetic field, bypass etc.
Ø Show tamper alarm on the LED.
Ø All tamper events will be recorded on meter memory and sent to the AMI central system remotely
Disconnect/reconnect switch
Ø 2-pole internal latching relay supporting load limiting, load shedding, and prepayment function
Ø Remote disconnect/reconnect from AMI central system
Ø Scheduled disconnect/reconnect
Communication
Ø Full DLMS/COSEM and IEC 62056-21 compliance optical port
Ø MC171 for communication when there is no power
Internal PLC/RF module
Operating Voltage | 230V |
Current rating | 5(100)A |
Starting current | 0.4% of Ib |
Frequency | 50Hz±5% |
Accuracy Class | Active Energy: CL 1.0 1000 imp/kWh |
Real-time Clock Accuracy | 0.5s/Day |
EMC | Electrostatic discharges(Contact discharges) | 8kV |
Electrostatic discharges(Air discharges) | 15kV |
Fast transient burst test | 4kV |
Surge immunity test | 6kV |
Electromagnetic RF field (80MHz to 2000MHz) | 10V/m(with current), 30V/m(without current) |
Diameter of terminal holes | 10 mm |
Environment | Temperature Range: -40 °C ~ +70 °C Humidity: Up to 95% |
Protective class | II |
Degree of protection | IP54 |
Applicable scenarios：
Ø Industrial and commercial buildings.
Ø Small power distribution system.
