Classic Control

Course Chapter 9: Special Relayes

Prepared By: Eng, Abd ulkawy Mobarak

Tel: 01014871075

E-Mail: Eng.Abdelkawy.Mobarak@Gmail.com

Industrial Automation Group Link :

https://www.facebook.com/groups/1485569765018920/

2 esruoC lortnoC cissalC | KARABOM YWAK-LE DBA .GNE

:seyaleR laicepS

lortnoC cissalC -

stnenopmoC tcapmoC -

: stnenopmoc syaleR stnenopmoC

yaleR etatS diloS o

yaleR -

lioC

stcatnoC

. yaleR

. ON

)CN+ON(

ENG. ABD EL-KAWY MOBARAK | Classic Control Course 3

2 Control Voltage & NOContact & NC Contact

3 Control Voltage & NOContact & NC Contact

4 esruoC lortnoC cissalC | KARABOM YWAK-LE DBA .GNE

.)A52,CAV083(ON 2

rotoM HP 3 yaleR -

rotoM

)4/3(&)2/1(

TUPNI -

8&5 7&6

: yaleR tatS diloS

-

. yaleR -

-

.

-

5 esruoC lortnoC cissalC | KARABOM YWAK-LE DBA .GNE

):74(

: -

level hgih

)taolF( hctiwS leveL 2 level woL

hctiwS leveL woL = 1SL

hctiwS leveL hgiH = 2SL

)1(pmuP

:

)CN( hctiwS taolF :1SL

)CN( hctiwS taolF :2SL

:

1SL -

2SL -

:

)NO lortnoC(1S -

1K -

1MK 1K -

1P 1MK -

1SL 1SL -

1MK 1P

2SL 2SL -

1P 1MK

2SL -

1SL 1P

1SL -

1K 1P 1MK

)FFO lortnoC(2S -

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:yaleR level diuqiL o

-

.

. -

-

. -

)esaB , rewoL ,reppU ( sedortcelE 3 -

sedortcelE -

)ytivitsneS ( -

sedortcelE

:

yaleR sedortcelE 3 -

. edortcelE esaB sedortcelE 2

yaleR edortcelE reppU -

) esolC = 3/2 , nepO = 2/1 , 1 = P/O (

edortcelE rewoL yaleR

esaC lamroN yaleR edortcelE rewoL -

.) nepO = 3/2 , esolC = 2/1 , 0 = P/O (

ENG. ABD EL-KAWY MOBARAK | Classic Control Course 7

Operation of the Relay:

- Liquid Level Control Relay :

- Case (1) :

- Low Level Electrode

Relay Normal Case &O/P = 0

1/2 = Close 1/3 = Open

- Case (2):

- Low Level Electrod High Level Electrode

Relay Normal Case &O/P = 0

1/2 = Close 1/3 = Open

- Case (3):

- Low Level Electrode High Level Electrode.

Relay Non-Normal Case &O/P = 1

1/2 = Open 1/3 = Close

- Case (4):

- Low Level Electrode High Level Electrode.

Relay Non-Normal Case & O/P = 1

1/2 = Open 1/3 = Close

- Case (5):

- Low Level Electrode High Level Electrode

Relay Non-Normal Case &O/P = 1

1/2 = Open 1/3 = Close

- Case (6):

- Low Level Electrode

Relay Normal Case &O/P = 0

1/2 = Close 1/3 = Open

8 esruoC lortnoC cissalC | KARABOM YWAK-LE DBA .GNE

:

)2/1( -

:

esolC =)2/1(

edortcelE leveL reppU

edortcelE leveL rewoL

:

)3/2( -

:

nepO = )3/2(

dortcelE leveL reppU

esolC =)3/2(

edortcelE leveL rewoL

edortcelE leveL reppU

: yaleR lortnoC leveL diuqiL -

.: .i

.ii

. staolF sedortcelE .iii

: -

yaleR leveL diuqiL .i

yaleR edortcelE esaB .ii

edortcelE esaB

tsriF L & U( ) sedortcelE 2 .iii

. B edortcelE dnoceS dortcelE

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yaleR gnihctaL lacinahcemortcelE o

)3/1( lioC )2/1( lioC slioC 2 -

:

)2/1( lioC -

lioC

)3/1( lioC -

.

:

. lioC -

. yaleR . slioC 2 -

lioC yaleR gnihctaL -

. gnihctaL

. lioC . -

10 esruoC lortnoC cissalC | KARABOM YWAK-LE DBA .GNE

):74(

.B.P potS/tratS -

:

)B.P eloP 3( potS/tratS : 1S

tcatnoC CN 1 + tcatnoC ON 2

:

)potS/tratS(1S -

1MK -

1M

1K -

1S -

1S 1MK -

1K 1K -

. 1S -

1S 2K -

1S 1MK 1S 1K -

1S -

1MK 2K 1S -

1M 1MK -

:

:

1S -

1K

1MK 1K -

1M 1MK -

1K 1MK -

2K 1MK -

2K 1S -

1MK

lamroN 1M 1MK

1M 1S -

00 esruoC lortnoC cissalC | KARABOM YWAK-LE DBA .GNE

yaleR potS/tratS o

. C/M potS & tratS yaleR cinortcelE -

esolC nepO yaleR 2B/1B -

.

. . -

.

yaleR -

( 2B/1B -

).

. 2A/1A yaleR -

)3/2(tcatnoC nepO yllamroN -

yaleR -

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. -

:

. WS leggoT -

yaleR petS o

: yaleR -

yaleR potS/tratS

)2A/1A(lioC

. -

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):74(

hctiwS leveL spmuP 2 -

)1(pmuP wS leveL

)1(P wS leveL

)2(pmuP wS leveL

)2(P wS leveL

wS leveL

. )1(pmuP

:

)taolF( hctiwS leveL diuqiL :1SL

:

CN lamroN WS leveL diuqiL -

. 1K )1(pmuP 1MK

WS leveL diuqiL -

. )1(pmuP

hctiwS leveL diuqiL -

1MK 1K )2(pmuP 2MK -

2MK

1P 1K 2P 2MK -

40 esruoC lortnoC cissalC | KARABOM YWAK-LE DBA .GNE

):44(

. spmuP3 -

yaleR 2 srotoM 3 -

50 esruoC lortnoC cissalC | KARABOM YWAK-LE DBA .GNE

yaleR ecneuqeS rotoM o

( ) rotoM yaleR -

. . -

)1P( -

.

.

yaleR C.N hctiwS erusserP -

.

nepO esolC hctiwS erusserP -

. yaleR

-

rotoM

60 esruoC lortnoC cissalC | KARABOM YWAK-LE DBA .GNE

):74(

spmuP 2 -

: -

level woL level hgiH

spmuP 2

sWS level diuqiL 2 spmuP 2 -

ENG. ABD EL-KAWY MOBARAK | Classic Control Course 07

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