ABB RELION 630 Series Product Manual

Also see for Relion 630 Series: Quick start guide Quick start guide Operation manual Engineering manual Operation manual

Contents

ABB RELION 630 Series Product Manual Manual pdf 12 page image

Table 2. Functions used in preconfigurations, continuedDescription A nSequence voltage measurement 1 1Disturbance recorder functionAnalog channels 1-10 (samples) 1 1Analog channels 11-20 (samples) - 1Analog channels 21-30 (calc. val.) - 1Analog channels 31-40 (calc. val.) - 1Binary channels 1-16 1 1Binary channels 17-32 1 1Binary channels 33-48 1 1Binary channels 49-64 1 1Station communication (GOOSE)Binary receive - 10Double point receive - 32Interlock receive - 59Integer receive - 32Measured value receive - 60Single point receive - 64n = total number of available function instances regardless of the preconfiguration selected1, 2, ... = number of included instances4. Protection functionsREG630 offers wide protection functionality for synchronousgenerators against internal faults and abnormal conditions ofexternal systems. The generator management protection relayfeatures non-directional and directional overcurrent and earth-fault protection functions, over- and undervoltage protectionfunctions and specific functions for the protection ofgenerators, for example, voltage-controlled overcurrentprotection, reverse/directional overpower protection,differential protection, underexcitation protection,overexcitation protection, high-impedance-based restrictedearth-fault protection, underimpedance protection (line back-up protection), thermal overload protection, negative-phasesequence protection, frequency protection and underpowerprotection. Rotor earth-fault protection function to be used witha separate fundamental frequency voltage injection device isalso included.REG630 incorporates third harmonic-based stator earth-faultprotection as an optional function. Transformer differentialprotection for two-winding transformers is another optionalfunction applicable for generator-transformer blocks.Low-voltage ride-through, reactive power undervoltage andvoltage vector shift protection can be used to ensure gridstability and reliability, and thus avoid grid collapse. The low-voltage ride-through protection allows monitoring of distributedgeneration during low-voltage or fault ride-through, in order todetermine whether and when to disconnect from the grid. Areactive power undervoltage protection (QU) can be used atgrid connection point of distributed power generation units. Thevoltage vector shift protection detects islanding from the grid. Itmeasures continuously the duration of voltage cycle. At theinstance of islanding, the duration of measured voltage cyclebecomes shorter or longer than the previous one, i.e. themeasured voltage cycle shifts with time.Generator Protection and Control 1MRS757583 CREG630Product version: 1.312 ABB