IME NEMO 96 HD+, Manual

Page: 25 / 80

Nemo 96HD+
07/17 10783482 WEB E cod.MF9602.A
5
Power: 3-phase active rated power
Programmable value: 0...50%Pn
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 CT or VT ratio
Ct =
External primary/secondary CT ratio
(eX. CT 800/5A Ct = 160)
Ct = Selection in the field 1...9999
(max. primary current CT 50kA/5A – 10kA/1A)
Vt = External primary/secondary VT ratio
(eX. VT 600/100V Vt = 6)
Vt = Selection in the field 1,00...1500,00
(max. primary voltage VT 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
(See point 3 page19)
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 con-
nection sequence provided that the following conditions are respected:
1)
The neutral wire
(in a 4-wire network)
is connected to the right terminal
(normally number1)
2) No crossings between cables connected to CT’s
(e.g. avoid that on phase 1 of the meter-terminals 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”.