Siemens NXAIR P - 19.6 High Potential Tests

Maintenance NXAIR P - ANSI
0$,17(1$1&(1;$,53$16,6*,0
19.5 Electrical Control Checks
7KHHOHFWULFDOFRQWUROVRIWKH$.FLUFXLWEUHDNHU
VKRXOGEHFKHFNHGGXULQJLQVSHFWLRQVWRYHULW\
DEVHQFHRIDQ\PHFKDQLFDOGDPDJHDQGSURSHURSHUD
WLRQRIWKHDXWRPDWLFVSULQJFKDUJLQJDQG&ORVHDQG
7ULSFLUFXLWV
8QOHVVRWKHUZLVHQRWHGDOORIWKHVHWHVWVDUHSHU
IRUPHGZLWKRXWDQ\FRQWUROSRZHUDSSOLHGWRWKHFLUFXLW
EUHDNHU
Check of the Wiring and Terminals:
Õ &KHFNSK\VLFDOO\DOORIWKHEUHDNHUZLULQJIRUHYL
GHQFHRIDEUDVLRQFXWVEXUQLQJRUPHFKDQLFDOGDP
DJH
Õ &KHFNDOOWHUPLQDOVWREHFHUWDLQWKH\DUHVROLGO\
DWWDFKHGWRWKHLUUHVSHFWLYHGHYLFH
Check of the Secondary Disconnect:
Automatic Spring Charging Check - Control Power
Required:3ULPDU\WDVNVRIWKLVFKHFNDUH
Õ (QHUJL]HWKHFLUFXLWEUHDNHUZLWKFRQWUROSRZHUIRU
WKLVFKHFN
Õ 'HHQHUJL]HWKHVRXUFHRIFRQWUROSRZHU
Õ ,QVWDOOWKHFLUFXLWEUHDNHUHQGRIWKHVSOLWSOXJ
MXPSHURYHUWKHVHFRQGDU\GLVFRQQHFWRIWKHFLUFXLW
EUHDNHU7KHVSOLWSOXJMXPSHUKDVRQHPDOHDQGRQH
IHPDOHFRQQHFWRUDQGFDQQRWEHLQVWDOOHGLQFRU
UHFWO\
Õ ,QVWDOOWKHVZLWFKJHDUHQGRIWKHSOXJMXPSHURYHU
WKHVHFRQGDU\GLVFRQQHFWEORFNLQVLGHWKHVZLWFK
JHDU
Õ (QHUJL]HWKHFRQWUROSRZHUVRXUFH
Õ :KHQFRQWUROSRZHULVFRQQHFWHGWRWKHFLUFXLW
EUHDNHUWKHFORVLQJVSULQJVVKRXOGDXWRPDWLFDOO\
FKDUJH9LVXDOO\YHULI\WKDWWKHFORVLQJVSULQJVDUH
FKDUJHG
Note:$WHPSRUDU\VRXUFHRIFRQWUROSRZHUDQGWHVW
OHDGVPD\EHUHTXLUHGLIWKHFRQWUROSRZHUVRXUFHKDV
QRWEHHQFRQQHFWHGWRWKHVZLWFKJHDU:KHQFRQWURO
SRZHULVFRQQHFWHGWRWKH$.FLUFXLWEUHDNHUWKH
FORVLQJVSULQJVVKRXOGDXWRPDWLFDOO\FKDUJH
Electrical Close and Trip Check - Control Power Required:$
FKHFNRIWKHEUHDNHUFRQWUROFLUFXLWVLVSHUIRUPHGZKLOH
WKHXQLWLVVWLOOFRQQHFWHGWRWKHVZLWFKJHDUE\WKHSOXJ
MXPSHU7KLVFKHFNLVPDGHZLWKWKHEUHDNHUHQHUJL]HG
E\FRQWUROSRZHUIURPWKHVZLWFKJHDU
Õ 0RYHWKHVZLWFKJHDU&ORVH7ULSVZLWFKWRWKH&ORVH
SRVLWLRQRQFHWKHEUHDNHUVSULQJVDUHFKDUJHG
7KHUHVKRXOGEHERWKWKHVRXQGRIWKHEUHDNHUFORV
LQJDQGLQGLFDWLRQWKDWWKHEUHDNHUFRQWDFWVDUH
FORVHGE\WKHPDLQFRQWDFWVWDWXVLQGLFDWRU
Õ $VVRRQDVWKHEUHDNHUKDVFORVHGWKHDXWRPDWLF
VSULQJFKDUJLQJSURFHVVLVUHSHDWHG
Õ 0RYHWKHVZLWFKJHDU&ORVH7ULSVZLWFKWRWKH7ULS
SRVLWLRQDIWHUDVDWLVIDFWRU\FORVHRSHUDWLRQLVYHUL
ILHG
Õ 9HULW\E\ERWKVRXQGDQGFRQWDFWSRVLWLRQWKDWWKH
FRQWDFWVDUHRSHQ
&RPSOHWLRQRIWKHVHFKHFNVGHPRQVWUDWHVVDWLVIDF
WRU\RSHUDWLRQRIDX[LOLDU\VZLWFKHVLQWHUQDOUHOD\V
DQGVROHQRLGV
Checks of the Spring Charging Motor: 1RDGGLWLRQDO
FKHFNVRIWKHVSULQJFKDUJLQJPRWRUDUHQHFHVVDU\
2QFHHYHU\RSHUDWLRQVWKHPRWRUEUXVKHV
QHHGUHSODFHPHQW
Õ 8VHWKHRSHUDWLRQFRXQWHUDVWKHEDVLVIRUHVWDEOLVK
LQJWKHRSHUDWLRQIUHTXHQF\
19.6 High Potential Tests
7KHQH[WVHULHVRIWHVWV9DFXXP,QWHJULW\7HVWDQG
,QVXODWLRQ7HVWVLQYROYHXVHRIKLJKYROWDJHWHVWHTXLS
PHQW7KHEUHDNHUXQGHUWHVWVKRXOGEHLQVLGHDVXLW
DEOHWHVWEDUULHUHTXLSSHGZLWKZDUQLQJOLJKWV
7KHYROWDJHVIRUKLJKSRWHQWLDOWHVWVDUHVKRZQLQ
IRORZLQJWDEOH
High Potential Test Voltages
Equipment kV Rating Max AC rms kV Max DC Avg kV
  
  
  