Feature
Suit for LV/ HV voltage system
For low voltage system, ECM770 direct connect up to 600VAC
For high voltage system, ECM770 need to connect with PTs, PT ratio programmable
New appearance and design
Large LCD display and button, replace AI capacitor by Tam capacitor
Self-testing phase sequence error
In case of error phase sequence input, ECM770 will display on LCD
Real-time measurement
True-RMS measuring parameters includes:
U, I, P, Q, S, PF, F, kWh, kvarh, kVAh, demand, max./min. value
Demand calculation mode is programmable
2 kinds of demand modes: fixed mode and slip mode
Demand cycle programmable: 5/ 10/ 15/ 30/ 60mins
Slip window programmable: 1/ 2/ 3 mins
Multi-tariff billing, historical data of 31 days and 12 months
2 kinds of setting modes: time zone mode and holiday mode
Time zone mode: 2 time zones in one year
Holiday mode: working days ( Mon.- Fri.) and holidays ( Sat.- Sun.)
There are 2 lists of tariff rate, each list can setup 8 periods of time in 24 hours, 4 tariff rates.
Power quality analysis
Harmonic analysis, crest and K factor, unbalance etc.
Optional module and upgradeable
Pluggable in option module, support online upgrade
Setpoint alarm
Under/ over limit alarm, monitoring objects include: U, I, PF, F, THD, unbalance
If any parameters is over or under limit and persists over the specified time, ECM770 will record the event, and trip relay output signal.
High accuracy
Active energy: according to IEC62053-22, class 0.5s
Reactive energy: according to IEC62053-23, class 2
Small size and thin style
Panel: 96x96x13.5mm Cut-out: 90x90mm,
Depth: 45.1mm (basic unit) + 21.5mm (optional module)
Standard
IEC62053-22/ 23, CE. KEMA
