01/16 10783480 WEB E cod.MF9602..
5
Nemo 96 HD+
Pn = 3-phase active rated power = 3-phase rated voltage Un x rated current In x√3
Un: 400V
In: 1A or 5A
Pn = 400V x5A x √3= 3464W or 400V x1A x√3= 692,8W
Level 2 Password = 2001
2.1
External VT or CT ratio
Ct = External primary/secondary CT ratio
(ex. TA 800/5A Vt = 160)
Ct = Selection in the field 1...9999 (max. primary current CT 50kA/5A – 10kA/1A)
Vt = External primary/secondary VT ratio (ex. TV 600/100V Vt = 6)
Vt = Selection in the field 1,00...1500,00 (max. primary voltage TV 150kV)
For voltage direct connection (without external VT) load Vt =1,00
By modifying the Ct and/or Vt ratios, the kWh meters are automatically
reset
Level 3 Password = 3002
3.0
Communication protocols (See point 3 page 19)
Phase sequence diagnostic
In the software of the device we have added a specific functionality to detect and correct
many problems concerning voltage and / or current connection.
This function can be activated through password and allows to display and modify the
connection sequence provided that the following conditions are respected:
1) The neutral wire
(in a 4-wire network)
is connected to the right terminal (normally number 1)
2) No crossings between cables connected to CT’s (e.g. avoid that on phase 1 of the meter-termi-
nals 1 and 3 - are connected some way both to CT1 and CT2)
.
3) The power factor is between 1 and 0,5 - Inductive load - for each phase.
See www.imeitaly.com “TECHNICAL SUPPORT”
.
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