hager h3+, Communication Instruction Manual

Page: 55 / 127

55
6LE005550A
Function of the Energy trip unit
3.3 Measurement function
IEEE convention
P < 0 P > 0
Q > 0
Ii
Capacitive
(lead or ahead)
I
Inductive
(lag or delay)
PF > 0
cos > 0 PF < 0
cos < 0
Q < 0
III
Inductive
(lag or delay)
IV
Capacitive
(lead or ahead)
PF < 0
cos < 0 PF > 0
cos > 0
The IEEE convention is indicated when the equipment downstream of the circuit
breaker operates exclusively as a receiver or exclusively as a generator.
In this case, the + sign designates the capacitive behaviour and the – sign
designates the inductive behaviour.
Note
The sign convention for power factors and cos is configured from the HTD210H
panel display or the HTP610H configuration tool (see $3.3.10 – Configuring
measurements).
3.3.10
Configuring measurements
The following configurations are possible from the HTD210H panel display or the
HTP610H configuration tool.
Adjusting the reference phase sequence
This parameter is used to configure the sequence of phases for the network
supplying the Energy circuit breaker. In the case of a network with inverse phase
rotation, the reference sequence is: 1, 2, 3.
Phase sequence
Phase sequence setting Default setting
1, 2, 3 – 1, 3, 2 1, 2, 3