Measurement
· Class1.0 accuracy
· Three element four quadrant
· Compliance with IEC 62052-11,62053-21, 62053-23
· Import/Export kWh, kvarh and kVAh
· PhaseA, B, C & Total
· Power: kW, kvar, kVA
· True RMS Voltage (3 phase)
· True RMS Current (3 phase), neutral current
· Power factor(per phase and total)
· Frequency, PhaseAngles
Voltage & Power Supply
· Nominal Voltage: 100V – 240V (phase to neutral)
· Operating Limit: 85V – 290V (phase to neutral)
· Frequency: 50/60Hz
Power Quality Indication
· Unbalance
· Total Harmonic Distortion (THD)
· Fundamental Voltage, Current and Active Power
(optional)
· Up to 32th harmonics (optional)
Prepayment
· 20 digit encryption STS
· Open relay automatically if credit run out
· Up to 99 two digit short code for customer to operate
and get meter information
· LED indication and Buzzer for Low credit alarm,
programmable alarm thresholds(in kWh) and buzzer
delay setting (in Minutes)through keypad
· Power and current overload control and Configurable
limit
· Prepaid mode and credit/postpaid mode
· Open relay automatically if power outage
LCD display
· Large 7-Segment LCD Display, easy for reading
· LCD with backlight display
· Default display balance
· Display readable without main power
Time Clock & Calendar
· Accuracy within 15 Seconds per Month at 23?C
· Backup Time of 2Years without Power (Lithium
Battery)
· Internal Crystal Timing
· Support Gregorian Calendars
Load profile
· AMI ready
· Up to 16 channels
· 3072K bytes available in total
· Intervals programmable from 5 to 60 minutes
· Energy date, Instantaneous value, THD
Load control
· Up to 80A, 100 A and 120A(optional)
· Over load control with fixed logic
· Programmable power limit and current limit
Anti-tamper
· Open meter cover
· Open terminal cover
· Bypass
· Reverse current
· Reversed phase sequence
· Reversed polarity
· Loss phase
· Neutral line cut off
· Magnetic interference(500mT)
· Open relay automatically if tampering
Data storage
· Up to 50 grid event log (include power off, unbalance
and overload)
· Up to 50 tampering log
· Up to 100 recharge token and credit
· Up to 50 engineering token
· Up to 12 history month billing data
Battery Options
· Internal rechargeable super capacitor (48h)
· Replaceable external battery
· Internal battery (optional)
Communications
· Optical with IEC62056-21 (E mode)
· RJ45 port with DLMS/HDLC