PRECOMMISSIONING & COMMISSIONING PROCEDURE
PRE-COMMISSIONING CHECKS FOR DIGITAL VOLTAGE REGULATOR FOR M/S AES, KELANITISSA, Colombo SRILANKA
1. Insp Inspec ectt Digit Digital al Volta oltage ge Regul Regulat ator or panel panel.. Remo Remove ve tool tools, s, cond conduc ucto tor r strands and any other material lying loose. 2. Use Use vacu vacuum um clean cleaner er to remo remove ve dust dust smal smalll parti particl cles es.. Don’ Don’tt use use air air hoses, which may contain oil, moisture etc. 3. hec! hec! all power power and control control circuit circuit connectio connections ns at termina terminall "loc!s "loc!s,, ca"le terminals, contactor terminals and "us "olts #or tightness. $. %lug all unused unused holes and and openings, openings, including including those #or ca"le ca"le entries. entries. &. In case, meters meters and relays are pac!ed pac!ed separately separately,, mount these these on the respe respect ctiv ive e cuto cutout uts s and conn connec ectt them. them. Re#e Re#err the the '()* '()*ch chem emat atic ic diagrams and terminal chart "e#ore connecting the meters and relays. +. hile dispatchin dispatching g the panel, secondaries secondaries o# -s -s are shorted. shorted. Remove Remove these shorting while connecting relays )meters. . hec! that that #uses are #itted #itted in main and au/iliary au/iliary circuit circuit and that that ratings are appropriate #or the circuit. 0. los lose e all all acce access ss plat plates es,, door doors s and and open openin ings gs "e#o "e#ore re the the Voltag ltage e Regulator is energied. . nsur nsure e that hat wires res are are not not hang hangiing loos loose. e. (ncho nchorr them hem #irm irmly, ly, pre#era"ly with plastic clamps. 14. -emporary mporary connec connectio tions ns made made durin during g testi testing ng shou should ld "e "e remove removed. d. 11. ( thor thorou ough gh chec! chec! o# cont contro roll and and prot protec ecti tion on schem scheme e is esse essent ntia iall "e#ore commissioning. 12. 12. nsu nsure re that that all all outg outgoi oing ng swit switch ches es are in the the 566 566 posi positi tion on "e#or "e#ore e energiing the Voltage Regulator %anel. 13. 13. Recom ecomm mende ended d clea cleara ranc nce e on #ron #rontt and and rea rear o# the the pane panell is 1.& 1.& meter.
1
1$. nsure 74’Volt arth 8 *creen arth o# (VR shall pre#era"ly "e earthed to separate lectronic arth points in the %lant "e#ore charging the panel. 1&. hec!ing o# ca"le connectors 1. hec! ca"le connectors9 : (- 5; ;D 5;<= ⇒ ((:>41:210 ⇒ ((:>41:22+ ⇒ ((:>4&:234 ⇒ ((:>2:222 ⇒ ((:>3:210 ⇒ ((:>3:22+ ⇒ ((:>$1:234 ⇒ ((:>+&:222 ⇒ (?:>41:210 ⇒ (?:>41:22+ ⇒ (?:>2&:210 ⇒ (?:>33:214 2. hec! ca"le connectors9: (- ?5-@ ;D* ⇒ (?:>21:242 -5 ((:>+1:214 ⇒ (?:>21:214 -5 ((:>$1:214 ⇒ (?:>21:210 -5 ((:>$1:210 ⇒ (?:>21:22+ -5 ((:>+1:210 ⇒ (?:/2&:242 -5 ((:>+&:21$ ⇒ (?:>2&:24+ -5 ((:>2:21$ -5 ((:>+&:242 ⇒ (?:>2&:214
⇒
(?:>2&:22+ -5 ((:>2:242
(?:>33:210 -5 (D:>21:42 ⇒ (?:>33:22+ -5 (D:>21:14 ⇒ ((:>&3:24+ -5 (?:>:242 ⇒ ((:>$1:22+ -5 (?:>1:242 ⇒ (?:>&3:210 -5 (41 ⇒ (?:>&3:242 -5 (42 ⇒ (?:>$:242 -5 (43 ⇒
2
(?:>$:22+ -5 (&1 -5 (&2 ⇒ (?:>$&:22+ -5 U1 ⇒ ((:>&3:22+ -5 U1 ⇒ ((:>+&:234 ⇒ ((:>2:234 -5 U2 ⇒
3.hec! all cards, "urg Aumpers, switch settings etc. as per the test report no.9 24&)42)433 as "elow9 1. U;$++4a:p B Ceasuring value processing #or channel:1 (utoE9 D414)U1 2. U;4++1 : Interrupt Unit #or hannel:19 ((&3 3. U;4+14 B (nalog Input)5utput unit #or hannel:19 ((& $. U;4++2 B ?inary Input ) 5utput unit #or channel:19 ((+1 &. U;4++3 B 'ate control unit #or channel:19 ((+& +. Un404 B %ulse #inal stage #or channel:19 ('41 . U;4++4 B omputer unit #or channel:19 (($ 0. Un4++$ B %ower supply unit #or channel:19 ((3 . U;$++4a:p : Ceasuring value processing #or channel:2CanualE 9 D424)U2 14. U;4++3 B 'ate control unit #or channel: 29 ((2 11. U;404 B %ulse #inal stage #or channel:29 ('43 12. U;4++$ B %ower supply unit #or channel:29 ((41 13. Un4++$ B %ower supply unit #or %<9 (?41 1$. F> 104 B$0 V *upply unit9 ('4+ 1&. F> 104 B$0 V *upply unit9 ('1+ 1+. U;4++4 B omputer unit #or %<9 (?13 1. U;$++1 B Digital Input inter#ace #or %<9 R' (41 10. U;$++1 B Digital Input inter#ace #or %<9 R' (42 1. U;$++1 B Digital Input inter#ace #or %<9 R' (43 24. U;$++2a:p B Digital 5utput inter#ace used #or %<9 R': &1 21. U;$++2a:p B Digital 5utput inter#ace used #or %<9 R':(&2 22. U;4++2 B ?inary Input ) 5utput unit #or %<9 (?21 23. U;4++2 B ?inary Input ) 5utput unit #or %<9 (?2& 2$. U;4++2 B ?inary Input ) 5utput unit #or %<9 (?33 2&. U;4++2 B ?inary Input ) 5utput unit #or %<9 (?$& 2+. U;4++2 B ?inary Input ) 5utput unit #or %<9 (?$ 2. U;4++2 B ?inary Input ) 5utput unit #or %<9 (?&3 20. Un4++2 B (larm indication unit9 (?+1
3
2. 34. 31. 32.
U;4+11 B (nalog Input)5utput unit #or monitoring9 (?1 Un4++4 B omputer unit #or Conitoring9 (?3 U;4+11 B (nalog Input)5utput unit #or monitoring9 (? U;4++2 B ?inary Input ) 5utput unit #or monitoring9 (?01
$.
&. ( and D power supply circuits9 aE *tation ( (u/. *upply9 3:%hase, &4 @, $1& V with ;eutral -?R: ,14,11,12 "E *tation "attery supply -?R B 1$,1& cE 'enerator %- supply B3:ph, &4 @, 114 V (, -?R:1, 10,1 dE 'enerator - supply B 1 ( -?R:21 to 2+ eE %C' *upply B3:ph, 224 V ac, 1&4 @ B-?R:$, &,+ #E @eater and illumination supply9 1:ph, 2$4 V (, -?R:, 0
+.hec!ing o#
o! o! o! 4! o! o! o! o! o! o! o! $
.
$anual %hannel& *l. ;o.
ontrol Voltage Ust DE
DVR Voltmeter D Volts
1 2 3 $ & + 0 14 11
4.44 4.$ 2.441 2.0 $.44 &.44 +.41 .41 0.41 .42 .04
13 24 2+ 33 $2 &1 +2 2 03 4 &
DVR (mmeter D (mps
1.1 1.2 1.$ 1.+ 1.0 2.4 2.2 2.3 2.+ 2. 2.0
-erminal Voltage 1R 8 2RE D Volts
13.10 10.04 2&.30 33.44 $1.0 &1.+ +2.1 2.+ 0&.1$ 4.12 +.+&
Auto %hannel&
&
*l. ;o.
1 2 3 $ & + 0 14 11
ontrol Voltage, Ust D Volts
DVR Voltmeter
4.44 4. 2.44 3.41 $.41 &.44 +.41 .44 0.42 .42 .04
1& 24 2+ 33 $2 &1 &3 &+ +0 2
D Volts
DVR (mmeter D (mps
1.1 1.2 1.& 1. 1.0& 1. 1.& 2.4 2.1 2.& 2.0
-erminal Voltage 1R 8 2RE D Volts
13.24 10.&$ 2&.41 32.4 $1.& &1.2 &3.44 &&.0& ++.$ .+ +.4
C?’s *ettings9 Regulation cu"icle 6&+ 6&1 -5 6&&, 6& 61 61, 62 62, 63, 601 602, 6&, 0 6$, 6, 604
Range 2& ( 3( :1$ ( 12.&( to 1+( 4.+3 to 1 ( 4.1 to 4.1+ ( 2.& -5 $ (
Recommended settings 6I>D 6I>D 12 ( 12.& ( 4.+3 ( 4.1 ( 2.& (
+
