Kamstrup 162M User Manual

TECHNICAL DESCRIPTION Kamstrup 162M/382M
5512-1040 GB/05.2012/Rev. C1
40
6.4 Smart disconnect
Smart disconnect activates the internal relays when exceeding a preprogrammed limit. The meters can be
programmed with a current or power limit that, when it is exceeded, will disconnect the supply to the consumer.
As default, the meter is provided with the smart disconnect function. If the function is to be used, it must be
activated from the factory at delivery, or it can be activated with METERTOOL.
Be aware that the JJ code can only be changed via the module port, not via the optical head.
At configuration, the cut-off current I
disconnect
(I
d
) or the cut-off power P
disconnect
(P
d
) is programmed, and the cutt-off
configuration (JJ, see 10.2.3 Configuration 3 ( JJ-K-LL-M-NN )) is configured to cut off at either current or power.
The meter will disconnect the consumer when I
d
or P
d
is exceeded.
Register Min. value Max. value
I
disconnect
0 A
80 A
P
disconnect
0 kW
80 kW
Table 17: Configuration limits for smart disconnect.
P (kW), I (A)
80
t
Figure 16: Configuration limits for smart disconnect.
6.4.1 Delayed disconnection
The meter can be configured for delayed disconnection or for having a disconnection characteristic. The meter is
configured via configuration set-up with multiplication factors for both time : t
1
, t
2
, t
3
and current/power: k
1
, k
2
, k
3
.
Register Min. value Max. value
k
1
,
k
2
,
k
3
0 9.9
t
1
, t
2
, t
3
[sec.] 0 65535
Table 18: Multiplication factors for smart disconnect.
The following conditions for the factors must be met at configuration:
t
1
=< t
2
=< t
3
and k
3
=< k
2
=< k
1
The meter will disconnect the consumer when one of the below conditions is met for current and power,
respectively:
Current Power
I > I
d
*
k
3
and t > t
1
+ t
2
+ t
3
P > P
d
*
k
3
and
t > t
1
+ t
2
+ t
3
I > I
d
*
k
2
and t > t
1
+ t
2
P > P
d
*
k
2
and
t > t
1
+ t
2
I > I
d
*
k
1
and t > t
1
P >
P
d
*
k
1
and
t > t
1

Kamstrup 162M Specifications

General

Brand	Kamstrup
Model	162M
Category	Measuring Instruments
Language	English