ABB Numerical generator protection REG316*4 1MRK502004-Ben

Features • Selectable protection functions • Multitude of applications • Setting menu-assisted with personal com puter by means of the Windows-based operator program CAP2/316 • Fully numerical signal processing • Continuous self-monitoring by hardware • Cyclically executed testing routines, mostly by software • Setting of parameters and recording of the settings • Display of measured values • Display of events, their acknowledgment and printout • Disturbance recording • Self-documentation • Long-term stability • Serial port for communication • Available for 19″ rack mounting in panel, surface or flush mounting. • Four independent, user-selectable param eter sets able to be activated via binary input • Multi-activation facility of the available function

Application The main areas of application of the REG316*4 terminal are the protection of gen erators, motors and unit transformers. The modular design makes it extremely flexi ble and simple to adapt to the size of the pri mary system installation and the desired pro tection schemes to be included. Economic solutions can thus be achieved in the full range of applications for which it is intended. Different degrees of redundancy are possible, availability and reliability of the protection can be chosen to suit the application by dupli cating of REG316*4 units, but also by multi ple configuration of the protection functions. The use of standard interfaces makes REG316*4 compatible with process control systems. Different forms of data exchange with higher process control levels are possi ble, e.g. one-way reporting of digital states and events, measured values and protection parameters

Application (cont’d) Protection functions All important protection functions required for the protection of generators, motors and unit transformers are included. The system can therefore replace several relays of a con ventional protection scheme. The following table gives a survey of the most significant protection functions of REG316*4. The desired protection functions to suit the particular application can simply be selected from a comprehensive library using the per sonal computer. No knowledge of program ming whatsoever is required. All setting ranges are extremely wide to make the protection functions suitable for a multi tude of applications. The following main pa rameters can be set, among others: • input channel or channels • pick-up setting • time delay • definition of the operating characteristics • tripping logic • control signal logic Setting a corresponding parameter enables the protection functions to be ‘connected’ to particular input channels. Digital input and output signals can also be connected together logically: • The tripping outputs of each protection function can be allocated to channels of the tripping auxiliary relay assembly in a man ner corresponding to a matrix. • The pick-up and tripping signals can be al located to the channels of the signalling auxiliary relay assembly. • Provision is made for blocking each pro tection function with a digital signal (e. g. digital inputs or the tripping signal of an other protection function).• External signals applied to the digital in puts can be processed in any desired fash ion. • Digital signals can be combined to per form logical functions, e.g. external en abling or blocking signals with the output signals of an internal protection function and then used to block one of the other protection functions.

The REG316*4 belongs to the generation of fully numerical generator protection termi nals, i.e. analogue to digital conversion of the input variables takes place immediately after the input transformers and all further process ing of the resulting numerical signals is per formed by microprocessors and controlled by programs. Standard interfaces enable REG316*4 to communicate with other control systems. Provision is thus made for the exchange of data such as reactionless reporting of binary states, events, measurements and protection parameters or the activation of a different set of settings by higher level control systems. Because of its compact design, the very few hardware units it needs, its modular software and the integrated continuous self-diagnosis and supervision functions, REG316*4 ideally fulfils the user’s expectations of a modern protection terminal at a cost-effective price. The AVAILABILITY of a terminal, i.e. the

ratio between its mean time in service with out failure and the total life, is most certainly the most important characteristic required of protection equipment. As a consequence of the continuous supervision of its functions, this quotient in the case of REG316*4 is typi cally always close to 1. The menu-based HMI (human machine inter face) and the REG316*4 small size makes the tasks of connection, configuration and setting simple. A maximum of FLEXIBILITY, i.e. the ability to adapt the protection for applica tion in a particular power system or to coordi nate with, or replace units in an existing pro tection scheme, is provided in REG316*4 by ancillary software functions and the assign ment of input and output signals via the HMI. REG316*4’s RELIABILITY, SELECTIV ITY and STABILITY are backed by decades of experience in the protection of generators and motors in transmission and distribution systems. Numerical processing ensures con sistent ACCURACY and SENSITIVITY throughout its operational life.