2-2 D30 Line Distance Protection System GE Multilin2.1 INTRODUCTION 2 PRODUCT DESCRIPTION2Figure 2–1: SINGLE LINE DIAGRAM2.1.2 ORDERINGa) OVERVIEWThe D30 is available as a 19-inch rack horizontal mount or reduced-size (¾) vertical unit and consists of the following mod-ules: power supply, CPU, CT/VT, digital input and output, transducer input and output, and inter-relay communications.Each of these modules can be supplied in a number of configurations specified at the time of ordering. The informationrequired to completely specify the relay is provided in the following tables (see chapter 3 for full details of relay modules).Order codes are subject to change without notice. Refer to the GE Multilin ordering page athttp://www.GEindustrial.com/multilin/order.htm for the latest details concerning D30 ordering options.The order code structure is dependent on the mounting option (horizontal or vertical) and the type of CT/VT modules (regu-lar CT/VT modules or the HardFiber modules). The order code options are described in the following sub-sections.Table 2–2: OTHER DEVICE FUNCTIONSFUNCTION FUNCTION FUNCTIONBreaker arcing current (I 2 t) Fault detector and fault report Setting groups (6)Breaker control Fault locator Time synchronization over SNTPBroken conductor detection FlexElements™ (8) Transducer inputs and outputsContact inputs (up to 96) FlexLogic™ equations Trip busContact outputs (up to 64) IEC 61850 communications (optional) User-definable displaysControl pushbuttons Line pickup User-programmable LEDsDigital counters (8) Metering: current, voltage, power, powerfactor, frequencyUser-programmable pushbuttonsDigital elements (48) Modbus communications User-programmable self-testsDirect inputs and outputs (32) Modbus user map Virtual inputs (64)Disconnect switches (8) Non-volatile latches Virtual outputs (96)DNP 3.0 or IEC 60870-5-104 protocol Non-volatile selector switch VT fuse failureEvent recorder Oscillography837764A1.CDR50N (2) 51N (2) 67N/G (2) 21G (3)59P27P (2)59N527950P (2) 50_2 (2) 51P (2) 51_2 (2) 21P (3) 67P (2) 67_2 (2) 6859X7827X50G (2) 51G (2)50DDMonitoringD30 Line Distance RelayCLOSE TRIP25 (2)TransducerInputsMeteringNOTE
