Functions
2.9 Auxiliary Functions
SIPROTEC, 7VK61, Manual
C53000-G1176-C159-3, Release date 05.2009
170
2.9.4
Energy
Metered values for active and reactive power are determined in the background by the processor system. They
can be called up at the front of the device, read out via the operating interface using a PC with DIGSI, or trans-
ferred to a central master station via the system interface.
2.9.4.1
Energy Metering
7VK61 integrates the calculated power which is then made available with the measured values. The compo-
nents as listed in table 2-9 can be read out. The signs of the operating values depend on the setting at address
1107
P,Q sign
(see Section 2.9.3 under margin heading „Display of Measured Values“).
Please consider that 7VK61 is primarily a protection device. The accuracy of the metered values depends on
the instrument transformers (normally protection core) and the device tolerances. The metering is therefore not
suited for billing metering.
The counters can be reset to zero or any initial value (see also SIPROTEC 4 System Description).
Table 2-9
Operational metered values
2.9.4.2
Setting Notes
Retrieving parameters
The SIPROTEC® System Description describes in detail how to read out the statistical counters via the device
front panel or DIGSI. The values are added up in direction of the protected object, provided the direction was
set as „forward“ (address
201
).
2.9.4.3
Information List
Measured values
Primary
W
p
+
Active power, output
kWh, MWh, GWh
W
p
–
Active power, input
kWh, MWh, GWh
W
q
+
Reactive power, output
kVARh, MVARh, GVARh
W
q
–
Reactive power, input
kVARh, MVARh, GVARh
No.
Information
Type of In-
formation
Comments
-
Meter res
IntSP_Ev
Reset meter
888
Wp(puls)
PMV
Pulsed Energy Wp (active)
889
Wq(puls)
PMV
Pulsed Energy Wq (reactive)
924
Wp+=
MVMV
Wp Forward
925
Wq+=
MVMV
Wq Forward
928
Wp-=
MVMV
Wp Reverse
929
Wq-=
MVMV
Wq Reverse
Summary of Contents for Siprotec 7VK61
Page 8: ...Preface SIPROTEC 7VK61 Manual C53000 G1176 C159 3 Release date 05 2009 8 ...
Page 14: ...Contents SIPROTEC 7VK61 Manual C53000 G1176 C159 3 Release date 05 2009 14 ...
Page 316: ...Literature SIPROTEC 7VK61 Manual C53000 G1176 C159 3 Release date 05 2009 316 ...
Page 328: ...Glossary SIPROTEC 7VK61 Manual C53000 G1176 C159 3 Release date 05 2009 328 ...