XITRON XT2640 - Ø 3 W or 3 Ø 3 W (2 Ch ) Wiring Using External Current Measurement

XT2640OperatingManual 13July2016 Page24of187
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9.5 2Ø3WOR3Ø3W(2CH)WIRINGUSINGEXTERNALCURRENTMEASUREMENT
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CAUTION:
 FORANA:ATYPECT:USEWITHSH,SD,AH,AD,LH,LD,WHORWDCHANNELSONLY
 FORANA:VTYPECTORASHUNT:USEWITHSX,AX,LXORWXCHANNELSONLY
 DONOTCONNECTWIRINGWHILEVOLTAGEPRESENT.
 ENSURE
WIRINGISCORRECTBEFOREAPPLYINGVOLTAGE.
WIRING:
 Thickerconnectionsarecurrentcarrying.Ensurewireusedisratedforthemaximumvoltageandcurrenttobe
encountered.
 Thinnerconnectionsarenotcurrentcarrying.Ensurewireusedisratedforthemaximumvoltagetobeencountered.
 Phasesareshownfordescriptivepurposes,theXT2640placesnorelianceontheactualphasinghoweverusingthose
shownensuresthattheXT2640displaymatchestheactualphasingifthechannelshaveincreasingchannelnumbersfrom
lefttorightinthediagramabove.
 ManyCTdevicesareisolating,inthosecasesyoushouldgroundtheA‐(BLUE)terminalofthechanneliftheCTdoesnot
groundit.
XT2640CONFIGURATION:
 IntheXT2640MEASCONFIGmenuyoushouldappropriatelysetSCALEforeachchanneltosuittheCTorshuntbeingused
(bothascalefactorandanoffsetareavailable).
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A
V
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XT2640
C
H
CT
+ -
øA
From
SOURCE
N or øC
From
SOURCE
øA
To
LOAD
A
V

XT2640
CH
CT
+ -
øB
From
SOURCE
øB
To
LOAD
N or øC
To
LOAD