接地与接零的区别

A.b.c.d.380/220V-1RAA-2CBBCR-1-3RcIdRd-2-3IDRdRdUo=IdR=U/Rd+Ro*R(-1RU-41010KV380/220V380/220-4IcdUrUo=Idro-2IcdU-4120ro120/Icd(-3)1030r4R4-5AB-6CIdUd=3URr/3Rr+Z(-4U--Rr--Z--R-5ZZIdUd=3URr/3Rr-JXc=3URr/9Rr2+1/2c2(-5C--Xc=1/wc;=2?RrId-6-7RbRbRrRbRrUd=3URb/3Rb+Z(-6RbZRbZId1KM380V1500Rr127V84.5MARb=4Rb0.415VId0.277MA-7----1.2.3.4---ABCO-8IdR-8-9ABIdCORdRdIdRRc220V-9-10ABIR=U/Rr+Ro-7U220VCRrROR4Rr1000IR=220/1000=0.22=220Rr20-25100220RIR-10-11ARdBC-10ORdR-12UDRrURdRrRdJtRdIDIDIRRdIRRr-11UIDR-12ID=U/Ro+Rd(-8RRd44ID=220/4+4=27.5AUR=IDRd=27.5*4=110(V)1000IR=UR/Rr=110/1000=0.11A=110(MA)27.51.25427.527.5/1.25=2227.5/4=6.9RRd100A400ARo+RdU/ID=220/400=0.55YDUD=36VU=U-UD=220-36=184VR4RD=UD/U*R=36/184*4=0.78220/380V-12ABBRdRUo=U/Rd+Ro*Ro-9-14RIRRd1.-13-15ABCOUd=Ui=IdlZl=(U/Zx+Zi)*Zi-10RRcIdl-Zi-Zx-U--14Ud=50V220/380V30%3.450%2Ud=(Zi/Zx+Zi)*U=(2Zx/Zx+2Zx)*U=2/3*220147V-16RoRcABCOIdlIdlUUlRUiU-15RIdRcIdRUd=Uc=IdRc=(Ul/Rc+Ro)Rc(11-16147VRcRoRc=10Ro=4Ud=(147/10+4)10=105V2.-17R-18UAABBCCOORoIdRoIdRcUUc=IdRc-17Uo=IdRoURcRo-18Uc=IdRc(-12)Uo=IdRo(-13),UcUoUcUo-19RRRc-19-20-20RcRc3.4.