LYND
A C
I2
t I2
t
.strana 55
12.
.
K GLVSR]LFLMHSUDKRYêFKKRGQRWNWHUpMVRXGHILQRYiQ\QiVOHGRYQ ..LYND'⇒ vypínací doba 0,5 SLSURXGX[,Q PLQLPiOQtGREDY\EDYHQt PV
7DEXONDQtåHXGiYiPRåQiQDVWDYHQt
I2
t I2
t
. 48, písmeno P
T
þDVRY ]iYLVOiY\EDYRYDFtNLYNDV NUiWNRXþDVRYRXSURGOHYRX ,2
t ON)
T
þDVRY QH]iYLVOiY\EDYRYDFtNLYNDV NUiWNRXþDVRYRXSURGOHYRX ,2
t OFF). 48, písmeno Q.LYND
B.LYND& Y\StQDFtGREDVSLSURXGX[,Q PLQLPiOQtGREDY\EDYHQt PV
.LYND%⇒ vypínací doba 0,1 SLSURXGX[,Q PLQLPiOQtGREDY\EDYHQt PV
.
9\EDYRYDFt WULS NLYN\XþDVRY ]iYLVOpRFKUDQ\V krátkodobou prodlevou
þDVRY ]iYLVOpNLYN\MVRXGHILQRYiQ\IXQNFt,2
t definovaná konstanta, PLWRKRGQRWDPL
.DåGêW\SPiNLYN\NWHUpVHYROtSHStQDþL',3R]QDþHQêPLStVPHQHP4QDREU
Tolerance vybavovací doby %. Ochranu MHPRåQR
Y\DGLW..
9ROED]iYLVtQDKRGQRW ]ORPNXSRP UXSURXG$,Q,7ROHUDQFHW FKWRSUDKRYêFKKRGQRWMH± 20%.LYND .RQWUROND
]KiãtSLVNRQþHQtSHWtåHQtQHERSLY\SQXWtMLVWLþHY G$VOHGNXSHWtåHQt
V druhém uYHGHQêFKStSDG$MHMLVWLþY\StQiQSRPRFtY\StQDFtKRHOHNWURPDJQHWX
9êE USUDKRYpKRGQRW\
1DVWDYHQtSUDKRYpKRGQRW\SURIXQNFL´6´VHSURYiGtSHStQiQtPWtSHStQDþ$',3- viz obr.LYND . In, krocích 2xIn
1iVOHGXMtFtREUi]HNXYiGtPRåQiQDVWDYHQt
OFF In
1 In
2 In
3 In
9êE UY\StQDFt WULS NLYN\ W
3RPRFt',3SHStQDþ$MHPRåQRQDVWDYLWU$]QpW\S\Y\StQDFtFK Y\EDYRYDFtFK FKDUDNWHULVWLN- viz obr.2 Ochrana proti zkratu NUiWNRXþDVRYRXSURGOHYRX 6
3UDKRYiKRGQRWDWpWRRFKUDQ\MHR]QDþHQDMDNR,UHODWLYQtY\EDYRYDFtGREDMHR]QDþHQDW7DWRIXQNFHPiY\EDYRYDFtFK
NLYHN] QLFKåMVRXþDVRY ]iYLVOpV SURGOHYRXSURY\EDYHQtDþDVRY QH]iYLVOp NUiWNRXSURGOHYRXSLY\EDYHQt
V SHGQtPSDQHOXMHGQRWN\MHLQVWDORYiQDVY WHOQiGLRGD NRQWUROND /(' REU( NWHUiVHSLSHWtåHQtUR]VYtWt.3.LYND$⇒ vypínací doba 0,05 SLSURXGX[,Q PLQLPiOQtGREDY\EDYHQt PV
