Toshiba GR200 Series Instruction Manual page 1073

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Statistics data (Power value group)

Table 9.3-1 shows the statistics information and its abbreviation in power value data.

Power values

Power information on the screen

Figure 9.3-1 shows the information about the watt-hour and var-hour (Wh and varh).

Note: See Chapter

Setting for power values

The user can select the unit for each power value. For example, set the [Wh-Display Unit]=kWh,

when kWh is perferred to display.

Statisics items

Wh-Display Unit

Varh-Display Unit

Regulation of power values

The number of digits for the power value can be reduced based on the units kWh, MWh and

kvarh+. For instance when the power is measured as "123,456kWh" then it is displayed as

"123MWh". If this value has to be changed then the user can key in a new compensated value.

For example, if "78MWh" should be displayed on the IED screen even though the measured

value is "123,456kWh" then the user can set the new value of "78MWh". Note that the

compensated value "78MWh" is "78,000kWh", and it is not "78,456kWh" or "123,456kWh"; the

compensated value will be affected when a change in the setting of VCT ratio. That is, the user

can set a value of "78MW" during the CT ratio of "2000:1", but the CT ratio would be changed

from "2000:1" to "4000:1"; hence, the value will be displayed as "156MW" on the IED screen

later. Therefore, when the CT ratio setting is required to be changed, remember to set the value

of "78MW" again to display the compensated value.

Table 9.3-1 Power value data

Displayed quantities

Watt-hour (plus/minus), var-hour (plus/minus)

Figure 9.3-1 Example of Power Value screen

User interface: Monitoring sub-menu: Statistics sub-menu

Table 9.3-2 Selection of units for displaying

Kilo-watt-hour (kWh) or Mega-watt-hour (MWh)

Kilo-var-hour (kvarh) or Mega-var-hour (Mvarh)

Selection of a unit fot the displaying

6F2S1915 (0.46)

Abbreviations

GRZ200 (Soft 031 & 032)