ASEA BROWN BOVERI

REG 100 SERIES

Pyramid protecti on tenninals

The Series 100 modular conceptDedicated hardware/software moduIes, esignedand tested for each main function, chara terize theSeries 100 modular concept. The multip ocessortechnique makes it possible to optimize achfunction separately. The basic structure f a termi-nal comprises the foIlowing parts: an 1/ modulewith a built in test switch and progr ableoutput relays; a measuring module for e ch mainprotection and measuring function; a re ordingmodule for local storage of data and eve ts and aMMI moduIe for local display of events Ioad andfallit data as weIl as for parameter settin s.

The Pyramid concept for total protection andcontroI is based upon state-of-the-art technol-ogy. This technology includes the use of micro-processors and fibre optic interfaces providing:

~ Improved functionality~ ~omprehensive self-supervision~ Communication of load and fault data as

weil as relay settiings~ User-friendly workstations

ABB offers protection terminals for all applica-tions. These terminals are divided into four series:Series 100 modular terminals, Series 200 multi- .

terminals, Series 300 compact terminals andSeries 400 terminal systems.

Series 100 modular terminalsSeries 100 includes the following high perform-ance modular terminals for HV and EHV applica-tions:

The intelligent protection terminalThe main objective for power system pr tection isto ensure dependable tripping for all int mal faultsand to secure against unwanted tripping or otherconditions.

The Series 100 combines advanced n ricalalgorithms for all complex measuremen s and weIlproven, ultra high speed analogue fault etectionto fulfil these objectives for single or du licatedprotection schemes.

Ll REG 1 00 Series for generators

Ll RET 100 Series for transformers

Ll REL 100 Series for transmission lines

Li REB 100 Series for bus and breakers

These terminals can be equipped with an interfaceto ABB Relays' Sub station ControI Systems andSub station Monitoring System. The RES 100monitoring and recording system and theREY 100tes ting and simulation system provide efficientfault analysis and preventive maintenance.

Workstations with software tools for th operator,the relay engineer and the service engin er offermany new possibilities to obtain reliabl powersystem protection, improved operation d moni-toring as weIl as simplified installation d main-tenance.~~C"'o","'r

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REG 100 SERIES

il Complete and compact packageil Application flexibilityil Suitable for retrofit and new installationsil Dependable modular multi processor concleptil Simple to extend via optional boardsil ~signed for subdivided redundant systems

Generators are the most complex and expensivesingle elements used in a power system. Thegenerator protection system must therefore pro-vide dependability; ensure clearing of electricalfallIts, even if Olle included protection function .should fail. Maximum dependability is obtainedby combining two REG 100 Series relays into twosubsystems. Each subsystem has a test-switch,input transformers, dc supply, measuring functionsand trip relays.

The modular structure and optional plug in mod-nIes provide adaption to different generator appli-cations and different customer requirements.

The REG 100 generator protection system in-cludes several functions for protection againstabnormal service conditions.

The REG 100 Series is designed to fulfil the needsof a modem generator protection system. Im-proved relay system dependability is also achievedby utilizing a muItiprocessor concept.

A software trip matrix with four channels, eachwith trip pulse prolongation, minimizes the re-quirement of auxiliary equipment, thus simplify-ing plant design. Each separate function has addi-tional outputs.

Settings are performed via the buiIt-in MM! tillitRTIA or optionally via serial communication. Allmeasurements and settings can be displayed. Tripvalues are recorded in an events register.

The REG 100 Series of generator protectionterminals are delivered as complete systems, inOlle or two 6U, 19" racks, making them verysuitable for retrofit installations.

REG 100 SERIES

the MM! module. The MM! module an m~asur-ing modules are star connected.

The MM!, with text window, is used for th~ set-ting of protection functions, configurati n,as weIlas for the reading of events, fallit and se idevalues. The set values are stored locally n ~achmeasuring module.

~ Modular multiprocessor design

~ Weil structured tllardware based on analogueand digital bus

~ Compact, factory tested system

~ Built-in trip relay~; and test switch

~ Avanced self-suJ>ervision for maximum

availability

Hardware structure-Test switch RTXP 24-Input transformer unit

-Basic measuring module-Four optional measuring modules-MMI module with MMI display-Output relay unit

-Dddc converter

Bus structureSignals from the input transformers are transferredon the analogue bus to each measuring module.The signals are filtered, multiplexed and independ-ently converted to digital signals in AID convert-ers on each measuring module. Each module hasits own microprocessor, RAM and ROM memo-lies; i.e. all the measuring modules work inde-pendently and store settings individually.

The structured hardware and multiproce SOTdesign provides the advantages of self -s pervisionon two levels:

Level!: Internal, advanced self -supervi iotwithin each measuring module, such as:

-Watch dog function-Read-write-read-write cycling of memo cells

and internai registers

-Check of the NO converter

-Check sum verification of the program emoryand setting parameters stored in the EEPROM

Level 2: Cross-supervision of the totalr otyctionbased on star communication between .J and

measuring units, etc. I

In addition, the REG 100 Series relC:lYs i~ ClUde a

manually initiated self test which additio al~y

includes checking of LED's and output ontacts.The digital bus connect the measuringmodules tothe input/output modules as weIl as to

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Signal flow in REG 100/110

4

REG 100 SERIES

The under-impedance function has two iFt end- ent impedance zone settings. Olle zone c e

used to provide fast back-up function for thgenerator transformer block.

t::. Weil defined measuring functions

t::. Adaptable to varying applications

t::. Wide setling ranges

t::. High measuring accuracy

t::. Software tri p matrix The stator differential protection is of th hi himpedance type, which secures maximu s nsitiv-ity (normally 1-4 % of rated generator c e t).Absolute stability is ensured for external fa ltseven for fully saturated CTs and the ope ti gtime is less than 25 mg.

Maximum dependability is achieved by the weIldefined and tested measuring functions. Outputsare is directly connected tQ the trip relays via logiccircuitry in each separate unit.

Each unit also has direct outputs to alarm relaysand contains indicating diades for the variousfulictions.

The reverse protection has extremely hi gularaccuracy and the operate value is settabl d wn to0.5 % of rated machine MYA. A true rev rspower function can therefore be used for all typesof generator-turbine sets. The function c e usedas a low forward power function when r u ed.To ensure operation for power swings, glcompensation and seal in circuits are inc ded.The field failure function is included on e farneboard. !

The wide setting ranges, together with high oper-ating accuracy result in flexible protection suitablefor many different generator types.

Numerical settings and operating valnes set in perunit of rated generator valnes make the settings easy.

~e rotor earth fauIt ~ncti?n is bas~d ont ac linjec- tlon. A system self cahbratlon funcnon e sures

that measuring accuracy is maximized. il

Inverse time negative sequence overcurr nt,inverse time thermal overload and 4 stag fr-quency relay options provide added func io alityfor the REG 100 Series. The frequency o ti nboard includes an inverse time V /Rzfun ti nsuitable for the generator or power statio tf ns-

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Measuring functionsThe stator earth-fallIt protectionin REG 100comprise both neutral voltage and current measUf-ing circuits. The latter is used for generatorsdirectly connected to a distribution bus. The singleelement neutral current measuring function canaltematively be used as a shaft current protectionfunction.

For the overcurrent phase short-circuit protection,normal inverse or independent time lag character-istics can be selected.

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Two-zone impedance function

5

REG 100 SERIES

L\. Easy commissioning

L\. Easy maintenance

L\. "Easy" reliability

L\. "Easy" price

Reliability I

Each measuring unit is independent, hav. g~.ts own A/D conversion, filtering and micro ro essor.

This results in flexibility, shorter optimiz d ro-grams and a minimized DumheT of camp nents.

InstallationREG"100 is housed in a 19" equipment frame, 6 U(226 mm) high which can be mounted in a cubic1ein existing support frames, in panel cutouts, etc.The reduced dimensions compare advantageouslywith traditional individual protection assemblies.

A severe disturbance test (IEC class 4) i~: to e to

every liDit. REG has also been comprehe si ely

radio frequency tested. The numerical te quegives high, long term stability. !

Price f I The REG 100 Series offers several onts .ng

features including remote communicatio ,; less

cost than that of traditional protection. i

CommissioningThe structure of the REG 100 Series and thenumerical technique make it possible to consider-ably reduce the commissioning time.

Secondary testing is carried out via a test-plughandle and a software controlled test mode inwhich only Olle function at a time is activated. Selftesting and measuring functions enable simplifiedcommissioning and maintenance.

Matching the protection to the application issoftware based. There is no need for interposingtransformers, due to wide settings availablebasedon generator per unit values.

Current and voltage values can be continuouslyshown on the MMI display making primary testingsimple. The digital, high precision settings makeadjustment and resetting unnecessary . REG with withdrawn module

MaintenanceIn the event of an interna! reIay fallIt the interna!supervision will immediateIy indicate which reIayunit is damaged.

All internai and externa!continuously monitored.the signal and trip relayssoftware and the keypad.

The various tillits can be replaced in a very shorttime; the only tool required being a small screw-driver.

REG with test-plug inserted

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REG 100 SERIES,in

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/). User friendly, built-in local MMI

/). Back-lit display for clear legibility

/). Event registers

/). Service and trip values in per unit

/). Series communication outputs to SMS and SCS

Communication with the REG 100 Series of relayscan be either from the front mounted MMI unit,type RTIA or, via dual series communicationparts, with a SCS or SMS system.

The handling is extremely simple and the user can,without previous training, use the push-buttons onthe front of RTIA, to move through the menu tree.Text to assist the user is shown on the display'stwo sixteen character rows.

From the RTIA, setting values can be changed andread, service values can be checked and trip valuesstored for postfault disturbance evaluation.

MMI unit RTIA I

same menu parts found on the RTIA u t are thenavailable on the PC's display. IThis allows information about primary is~r-bances to be available, quickly and corr ctly, atthe relay engineer's workplace. This im~roves boththe speed and the quality of disturbanCeteValua- .I

hons.

Service and trip values as weIl as setting valuesare all based on per unit values of rated currentsandvoltages. All values are set digita1ly, givinglong tenn stabilityand high accuracy, which

simplifies secondary testing.

The last three events are stored and automaticallydisplayed. Events are defined by setting to bestarts and trips only. All functions operatingduring an event are stored in the register.

An optional interface module with two optical iniout channels is available and is connected at therear of the rack. This enables the user to communi-cate with the relays from a remote/local PC. The

Remote communication only requires c~nvention-ally available equi~me~t, such a~ telePh

r' ne mo-

dems, etc. ConnectIon IS made VIa plas or glassoptical fibre. I

Portion of RTIA menu tree

7

REG 100 SERIES

Series communication*The series communication allows simpl d cu-

mentation of stored setting values and e a les animproved disturbance evaluation. Info ationabout primary fallits is easily transmitte tf the felar engineer's workstation. The info at on

includes all information about the fallit; i.e bothtime marked events and the RMS value o CUf-rents and voltages. 11

!!!. Self-supervision!!!. Compact design

!!!. Dual series communication ports

!!!. New functions

!!!. Extendable via optional boards

Th~ REG 100 Series of numerical relays offers theuser many advantages. The relays are designed tominimize the life cycle cost of instalied equipmentand to optimize the availability, security and

dependabilityNew functionsThe new functions, such as service val d tripvalues together with the digital setting ,allow for simple and time saving testin gcommissioning and maintenance. !

Self-supervisionSelf -supervision ensures maximum dependabilityand security. Hardware and software parts arecontinuously supervised. This iesuIts in higheravailability of the power system, avoids undesiredand missing functions. The mean time to repair isminimized. Information about interna! fallits isimmediately available.

ExtendableJ ~The addition of new functions to achie e nc-

tional redundancy or increased protecti n. s donesimply, as a result of the modular degig .

ICompact designThe compact design with very few hardwarecomponents results in savings of installation andspare part costs.

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ABB Power &~ Go.Relays '

Goral Sprin s, ~L.33065 USAPhone +1 752-6700Fax +1 752-6700

ext 2283

ABB Relays AB8-72171Västerås,8wedenPhone +4621321300Fax +4621146918

ABB Relays AGCH-5401Baden,Switzerlandrhone +41 56 75 2386Fax +4156226718

ABB Strömberg Power Oy

RelaysSF-651 01 Vasa,FinlandPhone +358 61 162111Fax +35861161 094