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- Maximum of zero sequence voltage which is measured directly in the form of the system
residual voltage (Ve: max) for model 100 and 300 series
- Maximum of phase current (I a , I b , I c : max.)
- Maximum of zero sequence current from residual circuit (I e : max)
- Maximum of zero sequence current from core balance CT (Ise: max) for model 200 and 400 series
- Maximum, minimum and average of frequency (f: max, min, av)
The displayed quantities depend on [APPL-CT] and [APPL-VT] setting as shown in Table 2.6.5.
The input current and voltage more than 0.01 × In(rated current) and 0.06V at secondary side are
required for the measurement.
The above system quantities are displayed in values on the primary side or on the secondary side
as determined by a setting. Max, min, and av values in Demand show maximum, minimum and
average values in the terms of demand time setting ( 1 to 60 minutes). The updated cycle of
demand value is the time of the demand time setting. To display accurate values, it is necessary to
set the CT ratio as well. For the setting method, see "Setting the Status" in 4.2.6.5.
Phase angles above are expressed taking the positive sequence voltage as a reference phase angle,
where leading phase angles are expressed as positive, (+).
The signing of active and reactive power flow direction can be set positive for either power
sending or power receiving. The signing of reactive power can be also set positive for either
lagging phase or leading phase.
The values of active energy (Wh) and reactive energy (varh) can be changed by setting.
A-phase to B-phase voltage is used to measure frequency (f).
Table 2.6.5
APPL setting
Quantity
Ia
Ib
Ic
Ie
Ise
I1
I2
I0
Va
Vb
Vc
Vab
Vbc
Vca
Ve
Vs
V1
V2
Displayed Quantity Depends on APPL setting
APPL-CT
3P
2P
1P
3PN
⎯
⎯
114
6 F 2 S 0 8 4 2
APPL-VT
3PV
3PP
2PP
--
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