ABB Relion 670 Series Applications Manual page 421

1MRK 505 370-UUS Rev. K
Alternatively, the energy values can be presented with use of the pulse counters function (PCGGIO). The
output energy values are scaled with the pulse output setting values EAFAccPlsQty, EARAccPlsQty,
ERFAccPlsQty and ERVAccPlsQty of the energy metering function and then the pulse counter can be
set-up to present the correct values by scaling in this function. Pulse counter values can then be
presented on the local HMI in the same way and/or sent to the SA (Substation Automation) system
through communication where the total energy then is calculated by summation of the energy pulses.
This principle is good for very high values of energy as the saturation of numbers else will limit energy
integration to about one year with 50 kV and 3000 A. After that the accumulation will start on zero again.
15.2.3 Setting guidelines
The parameters are set via the local HMI or PCM600.
The following settings can be done for the energy calculation and demand handling function ETPMMTR:
GlobalBaseSel: Selects the global base value group used by the function to define IBase, VBase and
SBase. Note that this function will only use IBase value.
Operation: Disabled/Enabled
EnaAcc: Disabled/Enabled is used to switch the accumulation of energy on and off.
tEnergy: Time interval when energy is measured.
tEnergyOnPls: gives the pulse length ON time of the pulse. It should be at least 100 ms when connected
to the Pulse counter function block. Typical value can be 100 ms.
tEnergyOffPls: gives the OFF time between pulses. Typical value can be 100 ms.
EAFAccPlsQty and EARAccPlsQty: gives the MWh value in each pulse. It should be selected together
with the setting of the Pulse counter (PCGGIO) settings to give the correct total pulse value.
ERFAccPlsQty and ERVAccPlsQty : gives the MVArh value in each pulse. It should be selected together
with the setting of the Pulse counter (PCGGIO) settings to give the correct total pulse value.
For the advanced user there are a number of settings for direction, zero clamping, max limit, and so on.
Normally, the default values are suitable for these parameters.
Busbar protection REB670
Application manual
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Section 15
Metering
SEMOD175556-4 v6
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