Chapter 3 Setup 23
3.13 Relays
There are 4 relays in the instrument which can be associated with up to
8 setpoints. Three of the relays may also be used for pulsing (see
following page). The setpoint values appear in the following windows
(each window has its number marked above it in the illustration below):
Window Setpoint Unit Range
1 High voltage V 0 - Vmax
3 Low voltage V 0 - Vmax
4 High current A 0 - Imax
7 Low total power factor lag 0 - 1.000
8 High accumulated power demand kW
9 High total reactive power import kvar 0 - Pmax
10 High total apparent power kVA 0 - Pmax
11 - standard High unbalanced current A 0 - Imax
11 - Option L High ground leakage current A 0 - GLImax
Notes:
Parameter limits:
Vmax (660V input) = (400 x k)V, where k=1 if no PT, or k=PT ratio if PT used
Imax (20% overrange) = 1.2 x CT primary current A
Pmax = (Imax x Vmax x 3)/1000 kW @ wiring mode 4L-n
Pmax = (Imax x Vmax x 2)/1000 kW @ wiring mode 4L-L, 3OP, 3dir
GLImax = 1.2 x ground leakage CT primary current mA
Wiring mode 4L-n: line-to-neutral voltages
Other wiring modes: line-to-line voltages
UNBA LANC ED C URRENT/
APPARENT POWER
(High Apparent Power)
(High Unbalanced
Current)
FREQUENCY
CURRENT
CURRENT
CURRENT
VOLTAGE
VOLTAGE
VOLTAGE
( High Voltage)
(Low Voltage)
(High C urrent)
AC T IVE E NE R GY
MA X . D E M A ND
(High Accumulated Active
Power Dem and)
( High Reactive Power)
REACTIVE POWER
POWER FACTOR
(Low Power Factor)
AC TI V E PO WE R
MODEL
1.
14
8
69
5
10
7
112
3
MAX. AMP DEMAND
290
MAX. AMP DEMAND
MAX. AMP DEMAND
RE ACTIVE ENERGY
- Use the ⇑ ⇓ keys to scroll to the desired relay number: 1, 2, 3 or 4.
Assigned setpoint values will appear in their respective windows; dots
will appear if a setpoint value has not yet been defined.
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