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10.6 Setting the Comparator Limit Values (optional)
Explanation
10-12
Setting the Comparator Limit Values in case of Normal Measurement
You can set the type of the limit and its value for each relay seperately.
• Relay setting
Selects the relay (ch1 to ch4) for which the type of limit and its value will be set.
• Setting the type of limit (corresponding to column A in the procedure)
The following selections are available. When the comparator mode is dual, ch1&ch2 and
ch3&ch4 are pairs and the same type of limit should be set for the channels of one pair.
V (voltage), A (current), P (active power), VAr (reactive power), VA (apparent power), PF
(power factor), VFrq (voltage frequency), AFrq (current frequency), Ph (total Watt-hour Wh),
Ah (total Ampere-hour), dEG (phase angle), VP(peak value of voltage)
*2
current)
, MATH(computation)
hour value Wh–), Ah+ (positive ampere hour value
– – – – (no data)
*1 For details concerning the positive value of the ampere hour, refer to page 7-3.
*2 Available on WT110/WT130 with ROM version 2.01 or later.
• Setting the element (corresponds to column B in the operating
procedure)
• WT110 (253401) no such element setting available;
• WT130 (253502) element can be selected from 1, 3 or 4
• WT130 (253503) element can be selected from 1, 2, 3 or 4
The element number 4 represents ∑.
• Setting the limit value
No element setting is available on the WT110.
Setting range: 0.000 to ±9999
Initial setting:
ch1 : V (type)
: 1 (element) : 600.0 (value) : E+0 (exponent) [ 600V voltage limit of
ch2 : A (type)
: 1 (element) : 20.00 (value) : E+0 (exponent) [ 20.00A current limit
ch3 : P (type): 1 (element) : 1.200 (value)
ch4 : PF (type) : 1 (element) : 1.000 (value) : E+0 (exponent) [ Power factor 1 limit
• Setting the exponent
The following selections are available. The initial value is as described above.
–3
0
E–3 (10
), E+0 (10
), E+3 (10
Setting the Comparator Limit Values in case of Harmonic Analysis
You can set the type of the limit and its value for each relay seperately.
• Relay setting
Selects the relay (ch1 to ch4) for which the type of limit and its value will be set.
• Setting the type of limit (corresponding to column A in the procedure)
The following selections are available. When the comparator mode is dual, ch1&ch2 and
ch3&ch4 are pairs and the same type of limit should be set for the channels of one pair.
V (voltage), A (current), P (active power), PF (power factor), Vt (harmonic distortion of
voltage), At (harmonic distortion of current), CV (relative harmonic content of each voltage
harmonic order), CA (relative harmonic content of each current harmonic order), CP (relative
harmonic content of each active power harmonic order), Vd (voltage phase angle of each
order), Ad (current phase angle of each order), – – – – (no data)
* For details concerning the meaning of harmonic analysis values, refer to chapter 8.
• Setting the element (corresponds to column B in the operating procedure)
• WT110 (253401) no such element setting available;
• WT130 (253502) element can be selected from 1 or 3
• WT130 (253503) element can be selected from 1, 2 or 3
*2
, Ph+ (positive watt hour value Wh+), Ph– (negative watt
*1
), Ah– (negative ampere hour value
element 1 for channel 1]
of element 1 for channel 2]
: E+3 (exponent) [ 1.2kW active power
limit of element 1 for channel 3]
of element 1 for channel 4]
3
6
), E+6 (10
)
*2
, AP(peak value of
*1
),
IM 253401-01E
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