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Prometer 100 User Manual
BGX501-943-R01
7.12.4 Cumulative Maximum Demand Registers
A special register is also provided for energy type selected for maximum demand which stores cumulative
Maximum Demand for all MD register whenever a billing action takes place. Each time Billing Action takes
place, the cumulative register shall increase by the value of their source register.
The purpose of this register is to limit the scope of tampering with Maximum Demand by performing a billing
action repeatedly.
7.13 Meter Reading
The Prometer 100 uses DLMS for meter reading. In DLMS protocol the BCS is considered the client and the
meter is the server. On request by the BCS, the meter will send all its supported OBIS codes and expected
queries. All DLMS meters will communicate data only after ‘getting associated’ with the BCS client. Meter
reading is divided in to the following sessions:
Single parameter sessions
Profile sessions
1.
Instantaneous profile reading
2.
Midnight energy profile reading
3.
Load survey profile reading
4.
Log wise events profile reading
7.14 Scaling Tariff
The Prometer 100 Scaling Tariff supports CT / VT ratio adjustment, and CT-VT error compensation in the field.
The M-Cubed is used for preparing the scaling tariff. The existing meter configuration must first be opened and
read. The configuration can then be modified using the M-Cubed. The Prometer 100 does not require to be
switched off during the configuration mode and will only implement the new configuration when all the blocks
have been received and authenticated.
The Scaling Tariff contains the following sections:
1. Commissioning
2. Error Compensation
In a single scaling tariff, commissioning change and error compensation is treated & logged as three separate
transactions.
It is also possible to download a scaling tariff in meter using a suitable tool. Complete meter data will be washed
out by applying scaling tariff in meter.
7.15 Transformer compensation
Transformer compensation is a function for compensating for measurement errors in instrument transformers
and for losses in power transformers. The function enables the Prometer 100 to present measurement values
for which errors and losses have been compensated. The formulas used in the meter are presented in Appendix
E: Calculation Principles (pg. 61).
Changing the transformer compensation can be blocked by the security setting ‘Block configuration of
transformer compensation’. This setting can only be changed at access level 5.
7.15.1 Overview
The tables present an overview of the transformer compensations in Prometer 100.
Instrument transformer compensations
Name
Value to be entered
Voltage error L1, L2, L3
Amplitude error as percent
Phase angle in minutes
Current error L1, L2, L3
Amplitude error as percent
Phase angle in minutes
Summary of Contents for Prometer 100
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