SL7000 User Guide
6.9.2.
Total energy registers (TER)
Total energy registers (TER) are:
•
dedicated to storing the total accumulation of an energy quantity
•
independent of any tariff switching or calendar definition
•
not reset at the end of a billing period
•
not programmable
Total energy registers can be configured to accumulate energy in three discrete multiplier steps, as shown in the
watt hour (Wh) example below (kvarh and kVAh follow the same pattern):
Unit
Value
Name
Wh
Watt hour
kWh
10
3
Kilowatt hour
MWh
10
6
Megawatt hour
Note:
It is very important that the register multiplier is chosen correctly with regard to the meter installation
requirements, pulse input and summation register values.
Energy register contents are displayed with a maximum of nine digits, the following table illustrates the full range
available for each unit multiplier:
Unit
Energy register unit
Energy register max value
Wh
999 999 999 Wh
999 999.999 kWh
kWh
999 999 999 kWh
999 999.999 MWh
MWh
999 999 999 MWh
999 999.999 GWh
The maximum energy register value is just under 1000TWh.
6.9.3.
Energy registering
All the measured energy quantities (page 35) recorded by the meter are available for energy registering, such as:
•
Per phase
•
Aggregate
•
Summation
6.9.3.1.
Energy channels
For energy registering purposes the meter can be configured with up to ten independent energy channels, each
channel being selected from the available measured energy quantities. If required, a specific energy quantity can
be allocated to more than one channel.
Typically, only energy channels configured with active and reactive energy types are used for billing purposes.
However, it is possible to configure any remaining channels with alternative energy quantities for analysis
purposes.
