Vt Ratio; Ct Ratio - Omron KE1 User Manual

Functions
 VT ratio
PGR1C PVS1C
(Electric power (Electric power
/leakage) /voltage sag)
○
O: With function X: Without function
• Setting a VT ratio can measure a voltage higher than the standard by using general VT.
• Accuracy assurance is not applicable to general VT.
• Setting range: 001 to 99.99 (initial value: 1.00)
* The settings of CTD8E (CT expansion) should conform to those of the measurement
master. In addition, CTD8E (CT expansion) can perform the two-system measurement
only when it is connected to PMU2A (power two-system).
 CT ratio
PGR1C PVS1C
(Electric power (Electric power
/leakage) /voltage sag)
○
O: With function X: Without function
• Setting the CT ratio by using general CT can measure currents higher than the standard of
dedicated CT.
• The CT ratio of general CT is set to make measurements by combining existing general
CT.
• Accuracy assurance is not applicable to general CT.
• Setting range: 1 to 1000 (Initial value: 1)
* Set it to 1 when it is not used.
* CTD8E (CT expansion) can perform the two-system measurement only when it is
connected to PMU2A (power two-system).
3-4
VSU1B
(Voltage sag) (Voltage/current)
○ ○
VSU1B
(Voltage sag) (Voltage/current)
○ ×
<When 5ACT is connected>
二次側 5A 出力の
General CT of secondary 5 A output
汎用 CT
専用 CT
( 形 KM20-CTF-5A
または形 KM20-CTB-5A/50A)
Model KE1
1000A
VAU1B CTD8E
(CT extension) (ZCT extension)
○ ○
VAU1B CTD8E
(CT extension) (ZCT extension)
○ ○
5A
Dedicated CT
Model KM20-CTB-5A or Model KM20-CTB-5A/50A
形 KM1
ZCT8E
×
ZCT8E
×