ABB REG216 Numerical Generator

ABB REG216 Numerical Generator

Application

The REG216 is intended for the protection of  generators and block transformers.

The modular hardware and software design  allows an extremely flexible installation.  Simplicity of adaption to the size of the primary system and the desired protection  schemes are achieved through the combination of a software library and hardware  modules. Economic solutions can thus be  achieved in the full range of applications for  which it is intended.

The REG216 software system offers a library  of protective functions. Functions suitable for  generator and transformer protection are listed in the table below.

Different degrees of redundancy can be selected. Availability and reliability of the protection can be chosen to suit the application by  duplicating e.g. auxiliary supply units of the  whole system.  Standard interfaces make REG216 compatible with different process control systems.  Data exchange with higher process control  levels are possible, e.g. one-way reporting of  digital states and events, measured values and  protection parameters. REG216 and REG216 Classic differ with  regard to the binary process connection:  

- REG216 uses the E/A-module 216GD61a.  

- The REG216 Classic uses the modules  216GE61 / 216GA61 and 216GA62.

Features

• Modular hardware 

• Selectable protection functions 

• Multitude of applications 

• Menu-assisted setting with PC 

• Fully numerical signal processing 

• Continuous self-monitoring of hardware 

• Cyclical testing routines mostly performed  by the software 

• Setting of parameters and recording of the  settings by PC

• Display of measured values 

• Display of events, their acknowledgment  and printout 

• Disturbance recording 

• Self-documentation 

• Long-term stability 

• Communication and coordination with station control 

• Two design versions available; REG216 /  REG216 Classic.

Protection functions

All protection functions required for the  stand-alone protection of generators, power  transformers and feeders are available. The  system therefore replaces several relays of a  conventional protection scheme for such  power system equipment. The table on page 2  gives a survey of the most significant protection functions.

The desired protection functions to suit the  particular application can simply be selected  from a comprehensive library using the personal computer. No knowledge of computer  programming is required.

All setting ranges are extremely wide to make  the protection functions suitable for a multitude of applications. The following main parameters can be set:

• Allocation of processing units 

• Input channel or channels 

• Pick-up setting 

• Time delay 

• Definition of the operating characteristic 

• 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  internally combined logically:

• The tripping outputs of each protection  function can be assigned to channels of the  tripping auxiliary relay assembly in a manner corresponding to a matrix.

• The pick-up and tripping signals can be  assigned to the channels of the signalling  auxiliary relay assembly. 

• Provision is available for blocking each  protection function with a digital signal  (e.g. digital inputs or by using the tripping  signal of another protection function). 

• External signals applied to the digital  inputs can be processed in any desired  fashion. 

• Digital signals can be combined to perform logical functions e.g. external enabling or blocking signals with the output  signals of an internal protection function  and then used to block one of the other  protection functions.