CHAPTER 2: INSTALLATION ELECTRICAL INSTALLATION889 GENERATOR PROTECTION SYSTEM – INSTRUCTION MANUAL 2–13Figure 2-14: Current Differential Typical wiring diagramWYE VTDIRECTION OF POWER FLOW FOR POSITIVE WATTSNEUTRAL SIDE CTsSLOT JTERMINAL SIDE CTsTypical auxiliarycontacts connectionTRIPTRIPCOIL52b52aBREAKER (52)Phase CPhase BPhase AOPEN DELTA VT CONNECTIONSLOT KCOIL+--+CIRCUIT889 Generator Protection System52b52a+24 VF21COMMONDIGITAL INPUT 7DIGITAL INPUT 6DIGITAL INPUT 5DIGITAL INPUT 4DIGITAL INPUT 3DIGITAL INPUT 2DIGITAL INPUT 1F20F19F18F17F16F15F14F13G1 G2 G3 G4 G5 G6 G7 G8 G9 G10 G11 G12 G13 G14 G15 G16 G17 G18 G19 G20 G21 G22 G23 G24DCmA I/OANALOG OUTPUT ANALOG INPUT RTD11 2 3 4 5 6 7 11 2 3 4SHIELDSHIELDSHIELDRETURNHOTCOMPRESER VEDRESER VEDRETURNRETURNAMBIENTTEMPERATURERESER VEDRESER VEDRESER VEDH9DIGITAL INPUT 7DIGITAL INPUT 6DIGITAL INPUT 5DIGITAL INPUT 4DIGITAL INPUT 3DIGITAL INPUT 2DIGITAL INPUT 1H8H7H6H5H4H3H2H1+24 VH12COMMONDIGITAL INPUT 10H11H10DIGITAL INPUT 9DIGITAL INPUT 8SLOT G: I/O_L (OPTIONAL)CH1CH4CH3CH2FIBER INPUT 1FIBER INPUT 2FIBER INPUT 3FIBER INPUT 4C9C8C7C6C5C4C3C2C1C12C11C10C15C14C13C18C17C16SHIELDRETURNCOMPHOTCOMPHOTRETURNCOMPHOTHOTRESERVEDSHIELDCOMPRETURNCOMPHOTCOMPHOTRTD 7RTD 7/8RTD 8RTD 9RTD 10RTD 11RTD 12RTD 9/10B9B8B7B6B5B4B3B2B1B12B11B10B15B14B13B18B17B16SHIELDRETURNCOMPHOTCOMPHOTRETURNCOMPHOTHOTRESERVEDSHIELDCOMPRETURNCOMPHOTCOMPHOTRTD 1RTD 1/2RTD 2RTD 3RTD 4RTD 5RTD 6RTD 3/4RTD 5/6SLOT B OR C: I/O_R OR I/O_S* (OPTIONAL)* SUPPORTS 10 OHM COPPER RTD AS WELLG/H2G/H1G/H24G/H23G/H22G/H12G/H11G/H10G/H9G/H8G/H7G/H6G/H5G/H4G/H3+24 VG/H21COMMONDIGITAL INPUT 7DIGITAL INPUT 6DIGITAL INPUT 5DIGITAL INPUT 4DIGITAL INPUT 3DIGITAL INPUT 2DIGITAL INPUT 1G/H20G/H19G/H18G/H17G/H16G/H15G/H14G/H13SLOT G OR H: I/O_A* (OPTIONAL)ANY MEASUREDOR METEREDANALOG PARAMETEROUTPUTS* SLOT H I/O_A IS AVAILABLE WHEN SLOT G IS WITH I/O_LANY MEASURED ORMETERED ANALOG PARAMETERINPUTSCLOSECIRCUITSLOT ACABLE SHIELD TO BE GROUNDEDAT PLC/COMPUTER END ONLYSLOT DSLOT E892842A2
