Toshiba GR200 Series Instruction Manual page 1070

AP+PR setting
(ii)
When the plus or minus sign of the PF value is required to be in conjunction with the states of
the leading current (i.e., supplying power) and the ragging current (i.e., absorbing power), the
user should set AP+RP for the set [PF_sign]. Note that the plus or minus signs of the P and Q
values cause the difference from the sign of the PF value; thus, the user should figure out the
correspondences between the settings [Power] and [Current] of Figure 9.2-6.
II
(PF <0)
III
(PF >0)
II
(PF >0)
III
(PF <0)
[Power]= Receive
Figure 9.2-6 PF corresponding with P and Q (i.e., [PF sign]=AP+RP)
Setting for the report (Dead band feature)
9.2.6
The data collected in the metering function will be sent to the network upward, but the data
sent may give the network a heavy burden because the amount of the data sent could be larger.
Thus, the dead band (SD) feature is designed not to send unnecessary data will not be sent
(say, the dead band feature regulates not to send the same data repeatedly). In practice the
analog values in the metering are not always the same; hence, the regulation for not sending
is defined by the user can change it using a setting in each power quantity.
Counting operation in SD feature
(i)
Figure 9.2-7 illustrates the operation for the SD feature about entering a current. At Time=0,
the current enters into the VCT and it is observed (Time=0). When the entering current is
being beyond the upper limit (Time=a), a repeated number is set for '1'. If the entering current
is out of the upper and lower limits (Time=b), the repeat number gets to have '2'. Note that the
repeated number is kept to have '2' even if the entering current goes back within the upper
and lower limits (Time=c). The repeated number will be larger than the setting [Period SD]=3,
when the entering current is out of the upper and lower limits again (i.e., Time=d). Then, at
I
(PF>0)
V
IV
I
(PF<0)
[Power]=Send
[Current]=Lag
I
(PF<0)
V
IV
I
(PF>0)
[Current]=Lag
- 1049 -
II I
(PF <0)
(PF >0)
V
IV
III
I
(PF >0)
(PF <0)
[Power]=Send
[Current]=Lead
II I
(PF >0)
(PF <0)
V
IV
III
I
(PF <0)
(PF >0)
[Power]=Receive
[Current]=Lead
GRZ200 (Soft 031 & 032)
6F2S1915 (0.46)
a. Q has a minus sign
the outside. The d
sending P having
lags the voltage.
[Current]=Lag
[Powe
[Curr