Page is loading ...
ã 1996 ABB Switzerland Ltd
Baden
6th Edition
Applies for software version V6.3
All rights with respect to this document, including applications for patent and
registration of other industrial property rights, are reserved. Unauthorised use, in
particular reproduction or making available to third parties, is prohibited.
This document has been carefully prepared and reviewed. Should in spite of this
the reader find an error, he is requested to inform us at his earliest convenience.
The data contained herein purport solely to describe the product and are not a
warranty of performance or characteristic. It is with the best interest of our
customers in mind that we constantly strive to improve our products and keep
them abreast of advances in technology. This may, however, lead to discrep-
ancies between a product and its “Technical Description” or “Operating Instructions”.
Version 6.3
1. Introduction B
2. Description of hardware C
3. Setting the function F
4. Description of function and application B
5. Operation (HMI) E
6. Self-testing and diagnostics C
7. Installation and maintenance C
8. Technical data B
9. Interbay bus (IBB) interface E
10. Supplementary information G
12. Appendices C
How to use the Operating Instructions for the REG316*4 V6.3
What do you wish to What precisely? Look in the following Indices (I) / Sections (S):
know about the device ...
* General theoretical
Brief introduction I 1 (Introduction)
familiarisation General overview I 1, S 2.1. to S 7.1. (all Section summaries)
Technical data I 8 (Technical data: Data Sheet)
Hardware I 2 (Description of hardware)
Software
I 3 (Setting the functions)
I 4 (Description of function and application)
I 6 (Self-testing and monitoring)
I 10 (Software changes)
* How to install
Checks upon receipt S 7.2.1.
and connect it Location S 7.2.2.
Process connections I 12 (Wiring diagram), S 7.2., S 7.3.2. to S 7.3.5.
Control system connections
I 9 (IBB)
S 9.6. (IBB address list)
* How to set and
Installing the MMI S 5.2.
configure it Starting the MMI S 7.3.1., S 5.2.3.
Configuration S 3.2. to S 3.4., S 5.4., S 5.5., S 5.11.
Setting functions S 3.5. to S 3.7., S 5.4., S 5.5., S 5.11.
Quitting the MMI S 5.2.3.
* How to check, test
Checking the connections S 7.2.3. to S 7.2.7.
and commission it Functional test S 5.9.
Commissioning checks S 7.3.6.
* How to maintain it
Fault-finding S 7.4.1., S 5.8.
Updating software S 7.5.
Adding hardware S 7.6.
* How to view and
Sequential recorder S 5.6.
transfer data Disturbance recorder S 5.6., S 3.7.4.
Measurements S 5.7.
Local Display Unit S 5.13.
REG 316*4 1MRB520049-Uen / Rev. B ABB Switzerland Ltd
1-1
March 01
1. INTRODUCTION
1.1. General.................................................................................... 1-2
1.2. Application ...............................................................................1-3
1.3. Main features ........................................................................... 1-3
ABB Switzerland Ltd REG 316*4 1MRB520049-Uen / Rev. B
1-2
1. INTRODUCTION
1.1. General
The numerical generator protection scheme REG 316*4 is one of
the new generation of fully digital protection systems, i.e. the
analogue-to-digital conversion of the measured input variables
takes place immediately after the input transformers and the re-
sulting digital signals are processed exclusively by programmed
micro-processors.
Within the PYRAMID
®
system for integrated control and protec-
tion, REG 316*4 represents one of the compact generator
protection units.
Because of its compact design, the use of only a few different
hardware units, modular software and continuous self-monitoring
and diagnostic functions, the REG 316*4 scheme optimally fulfils
all the demands and expectations of a modern protection
scheme with respect to efficient economic plant management
and technical performance.
The AVAILABILITY — the ratio between fault-free operating time
and total operational life — is certainly the most important re-
quirement a protection device has to fulfil. As a result of con-
tinuous monitoring, this ratio in the case of REG 316*4 is almost
unity.
Operation, wiring and compactness of the protection are the es-
sence of SIMPLICITY thanks to the interactive, menu-controlled
man/machine communication (HMC) program. Absolute FLEXI-
BILITY of the REG 316*4 scheme, i.e. adaptability to a specific
primary system or existing protection (retrofitting), is assured by
the supplementary functions incorporated in the software and by
the ability to freely assign inputs and outputs via the HMC.
Decades of experience in the protection of generators have gone
into the development of the REG 316*4 to give it the highest
possible degree of RELIABILITY, DISCRIMINATION and STA-
BILITY. Digital processing of all the signals endows the scheme
with ACCURACY and constant SENSITIVITY throughout its
useful life.
The designation “RE. 316*4” is used in the following
sections of these instructions whenever the information
applies to the entire series of devices.
REG 316*4 1MRB520049-Uen / Rev. B ABB Switzerland Ltd
1-3
1.2. Application
The REG 316*4 numerical generator protection has been
designed for the high-speed discriminative protection of small
and medium size generators. It can be applied to units with or
without step-up transformer in power utility or industrial power
plants.
REG 316*4 places relatively low requirements on the perform-
ance of c.t’s and v.t’s and is independent of their characteristics.
1.3. Main features
REG 316*4’s library of protection functions includes the follow-
ing:
· generator differential (Diff-Gen)
· transformer differential (Diff-Transf )
· definite time over and undercurrent (Current-DT)
· provision for inrush blocking
· peak value overcurrent (Current-Inst)
· voltage-controlled overcurrent (Imax-Umin)
· inverse time overcurrent (Current-Inv)
· directional definite time overcurrent (DirCurrentDT)
protection
· directional inverse time overcurrent (DirCurrentInv)
protection
· definite time NPS (NPS-DT)
· inverse time NPS (NPS-Inv)
· definite time over and undervoltage (Voltage-DT)
· peak value overvoltage (Voltage-Inst)
· underimpedance (Underimped)
· underreactance (MinReactance)
· power protection (Power)
· stator overload (OLoad-Stator)
· rotor overload (OLoad-Rotor)
· frequency (Frequency)
· rate-of-change frequency protection (df/dt)
· overexcitation (Overexcitat)
· inverse time overexcitation (U/f-Inv)
· voltage comparison (Voltage-Bal)
· overtemperature (Overtemp)
· 100 % stator ground fault (Stator-EFP)
· 100 % rotor ground fault (Rotor-EFP)
· pole slipping (Pole-Slip)
ABB Switzerland Ltd REG 316*4 1MRB520049-Uen / Rev. B
1-4
· invers time ground fault overcurrent (I0-Invers)
· breaker failure protection (BreakerFailure)
· supplementary logic functions such as
· supplementary user logic programmed using CAP316
(function plan programming language FUPLA). This
requires systems engineering.
· logic
· timers
· metering
· debounce.
The following measuring and monitoring functions are also avail-
able:
· single-phase measuring function UIfPQ
· three-phase measurement module
· three-phase current plausibility
· three-phase voltage plausibility
· disturbance recorder.
The scheme includes an event memory.
The allocation of the opto-coupler inputs, the LED signals and
the auxiliary relay signal outputs, the setting of the various pa-
rameters, the configuration of the scheme and the display of the
events and system variables are all performed interactively using
the menu-driven HMC (man/machine communication).
REG 316*4 is equipped with serial interfaces for the connection
of a local control PC and for remote communication with the
station control system.
REG 316*4 is also equipped with continuous self-monitoring and
self-diagnostic functions. Suitable testing devices (e.g. test set
XS92b) are available for quantitative testing.
REG 316*4 can be semi-flush or surface mounted or can be in-
stalled in an equipment rack.
REG 316*4 1MRB520049-Uen / Rev. C ABB Switzerland Ltd
2-1
March 01
2. DESCRIPTION OF HARDWARE
2.1. Summary..................................................................................2-2
2.2. Mechanical design ................................................................... 2-4
2.2.1. Hardware versions ................................................................... 2-4
2.2.2. Construction............................................................................. 2-4
2.2.3. Casing and methods of mounting ............................................ 2-4
2.2.4. Front of the protection.............................................................. 2-4
2.2.5. PC connection.......................................................................... 2-5
2.2.6. Test facilities ............................................................................2-5
2.3. Auxiliary supply unit ................................................................. 2-6
2.4. Input transformer unit............................................................... 2-6
2.5. Main processor unit.................................................................. 2-7
2.6. Binary I/O unit .......................................................................... 2-8
2.7. Interconnection unit.................................................................. 2-8
2.8. Injection unit REX 010 .............................................................2-9
2.9. Injection transformer block REX 011...................................... 2-13
2.9.1. REX 011.................................................................................2-13
2.9.2. REX 011-1, -2 ........................................................................ 2-14
2.9.3. Figures...................................................................................2-18
2.10. Testing without the generator.................................................2-27
ABB Switzerland Ltd REG 316*4 1MRB520049-Uen / Rev. C
2-2
2. DESCRIPTION OF HARDWARE
2.1. Summary
The hardware of the digital protection scheme RE. 316*4 com-
prises 4 to 8 plug-in units, a connection unit and the casing:
· Input transformer unit Type 316GW61
· A/D converter unit Type 316EA62
or Type 316EA63
· A/D converter unit Type 316EA62
· Main processor unit Type 316VC61a
or Type 316VC61b
· 1 up to 4 binary I/O units Type 316DB61
or Type 316DB62
or Type 316DB63
· Auxiliary supply unit Type 316NG65
· Connection unit Type 316ML61a
or Type 316ML62a
· Casing and terminals for analogue signals and connectors for
binary signals.
The A/D converter Type 316EA62 or 316EA63 is only used in
conjunction with the longitudinal differential protection and
includes the optical modems for transferring the measurements
to the remote station.
Binary process signals are detected by the binary I/O unit and
transferred to the main processor which processes them in rela-
tion to the control and protection functions for the specific project
and then activates the output relays and LED’s accordingly.
The analogue input variables are electrically insulated from the
electronic circuits by the screened windings of the transformers
in the input transformer unit. The transformers also reduce the
signals to a suitable level for processing by the electronic cir-
cuits. The input transformer unit provides accommodation for
nine transformers.
Essentially the main processor unit 316VC61a or 316VC61b
comprises the main processor (80486-based), the A/D converter
unit, the communication interface control system and 2 PCMCIA
slots.
REG 316*4 1MRB520049-Uen / Rev. C ABB Switzerland Ltd
2-3
Binary process signals, signals pre-processed by the control
logic, events, analogue variables, disturbance recorder files and
device control settings can be transferred via the communication
interface to the station control room. In the reverse direction,
signals to the control logic and for switching sets of parameter
settings are transferred by the station control system to the pro-
tection.
RE. 316*4 can be equipped with one up to four binary I/O units.
There are two tripping relays on the units 316DB61 and
316DB62, each with two contacts and according to version ei-
ther:
8 opto-coupler inputs and 6 signalling relays
or 4 opto-coupler inputs and 10 signalling relays.
The I/O unit 316DB63 is equipped with 14 opto-coupler inputs
and 8 signalling relays.
The 16 LED’s on the front are controlled by the 316DB6. units
located in slots 1 and 2.
ABB Switzerland Ltd REG 316*4 1MRB520049-Uen / Rev. C
2-4
2.2. Mechanical design
2.2.1. Hardware versions
RE. 316*4 is available in a number of different versions which
are listed in the data sheet under "Ordering information".
2.2.2. Construction
The RE. 316*4 is 6 U standard units high (U = 44.45 mm) and
either 225 mm (Order code N1) or 271 mm wide (Order code
N2). The various units are inserted into the casing from the rear
(see Fig. 12.3) and then screwed to the cover plate.
2.2.3. Casing and methods of mounting
The casing is suitable for three methods of mounting.
Semi-flush mounting
The casing can be mounted semi-flush in a switch panel with the
aid of four fixing brackets. The dimensions of the panel cut-out
can be seen from the data sheet. The terminals are located at
the rear.
Installation in a 19" rack
A mounting plate with all the appropriate cut-outs is available for
fitting the protection into a 19" rack (see Data Sheet). The termi-
nals are located at the rear.
Surface mounting
A hinged frame (see Data Sheet) is available for surface
mounting. The terminals are located at the rear.
2.2.4. Front of the protection
A front view of the protection and the functions of the frontplate
elements can be seen from Fig. 12.2.
A reset button is located behind the frontplate which serves three
purposes:
· resetting the tripping relays and where the are configured to
latch, also the signalling relays and LED's and deleting the
distance protection display when running the control program
REG 316*4 1MRB520049-Uen / Rev. C ABB Switzerland Ltd
2-5
· resetting of error messages resulting from defects detected
by the self-monitoring or diagnostic functions (short press)
· resetting the entire protection (warm start, press for at least
ten seconds) following the detection of a serious defect by
the self-monitoring or diagnostic functions.
These control operations can also be executed using the local
control unit on the front of the device. Should the latter fail, the
reset button can be pressed using a suitable implement through
the hole in the frontplate.
2.2.5. PC connection
In order to set the various parameters, read events and meas-
urements of system voltages and currents and also for diagnos-
tic and maintenance purposes, a personal computer (PC) must
be connected to the optical serial interface (Fig. 12.2).
2.2.6. Test facilities
A RE. 316*4 protection can be tested using a test set Type
XS92b.
ABB Switzerland Ltd REG 316*4 1MRB520049-Uen / Rev. C
2-6
2.3. Auxiliary supply unit
The auxiliary supply unit 316NG65 derives all the supply volt-
ages the protection requires from the station battery. Capacitors
are provided which are capable of bridging short interruptions
(max. 50 ms) of the input voltage. The auxiliary supply unit is
protected against changes of polarity.
In the event of loss of auxiliary supply, the auxiliary supply unit
also generates all the control signals such as re-initialisation and
blocking signals needed by all the other units.
The technical data of the auxiliary supply unit are to be found in
the data sheet.
2.4. Input transformer unit
The input transformer unit 316GW61 serves as input interface
between the analogue primary system variables such as cur-
rents and voltages and the protection. The mounting plate of the
unit can accommodate up to nine c.t's and v.t's. The shunts
across the secondaries of the c.t's are also mounted in the input
transformer unit.
The input transformers provide DC isolation between the primary
system and the electronic circuits and also reduce (in the case of
the c.t's, with the aid of a shunt) the voltage and current signals
to a suitable level for processing by the A/D converters. Thus the
input transformer unit produces voltage signals at its outputs for
both current and voltage channels.
The c.t's and v.t's actually fitted in the input transformer unit vary
according to version. Further information can be obtained from
the data sheet.
REG 316*4 1MRB520049-Uen / Rev. C ABB Switzerland Ltd
2-7
2.5. Main processor unit
The main processor runs the control and protection algorithms
as determined by the particular settings. It receives its data from
the A/D converter unit and the I/O unit. The results computed by
the algorithms are transferred either directly or after further logi-
cal processing to the binary I/O unit.
A 80486-based microprocessor is used in the main processor
unit 316VC61a or 316VC61b. The samples taken by the A/D
converter are pre-processed by a digital signal processor (DSP).
The interfaces for connecting an HMI PC and for communication
with the station control system (SPA, IEC60870-5-103) are
included. A PCMCIA interface with two slots facilitates
connection to other bus systems such as LON and MVB. The
flash EPROM’s used as program memory enable the software to
be downloaded from the PC via the port on the front.
A self-monitoring routine runs in the background on the main
processor. The main processor itself (respectively the correct
operation of the program) is monitored by a watchdog.
ABB Switzerland Ltd REG 316*4 1MRB520049-Uen / Rev. C
2-8
2.6. Binary I/O unit
The binary I/O unit 316DB6. enables binary signals received via
opto-couplers from station plant to be read and tripping and
other signals to be issued externally.
All the input and output units provide electrical insulation be-
tween the external signalling circuits and the internal electronic
circuits.
The I/O units in slots 1 and 2 also control the statuses of 8 LED's
each on the frontplate via a corresponding buffer memory.
The numbers of inputs and outputs required for the particular
version are achieved by fitting from one to four binary I/O units.
The relationship between the versions and the number of I/O
units is given in the data sheet.
The opto-coupler inputs are adapted to suit the available input
voltage range by choice of resistor soldered to soldering posts.
This work is normally carried at the works as specified in the or-
der.
The technical data of the opto-coupler inputs and the tripping
and signalling outputs can be seen from the data sheet.
2.7. Interconnection unit
The wiring between the various units is established by the inter-
connecting unit 316ML62a (width 271 mm) or 316ML61a (width
225 mm). It is located inside the housing behind the frontplate
and carries the connectors and wiring needed by the individual
units.
In addition, the interconnection unit includes the connections to
the local control unit, the reset button and 16 LED’s for status
signals.
REG 316*4 1MRB520049-Uen / Rev. C ABB Switzerland Ltd
2-9
2.8. Injection unit REX 010
The injection unit Type REX 010 provides the power supply for
the injection transformer block Type REX 011. The injection
transformer block generates the signals needed for the 100 %
stator and rotor ground fault protection schemes. The signals all
have the same waveform (see Fig. 2.6).
The injection unit is installed in an REG 316*4 casing and there-
fore the mechanical and general data are the same as specified
for the REG 316*4. Three versions of the injection unit with the
designations U1, U2 and U3 are available for the following sta-
tion battery voltages:
Battery voltage Tolerance Output
U1: 110 or 125 V DC +10% / -20% 110 V or 125 V, 1.1 A
U2: 110; 125; 220; 250V DC 88...312 V DC 96 V, 1 A
U3: 48; 60; 110 V DC 36...140 V DC 96 V, 1 A
Versions U2 and U3 operate with a DC/DC converter.
The frequency of the injection voltage which corresponds pre-
cisely to ¼ of the rated frequency of 50 Hz or 60 Hz can be se-
lected by positioning a plug-in jumper on PCB 316AI61. The
frequency is then 12.5 Hz in position X12 and 15.0 Hz in position
X11.
Controls and signals:
· Green LED READY:
Auxiliary supply switched on
· Red LED OVERLOAD:
The internal protection circuit has picked up and injection
is interrupted.
· Yellow LED DISABLED:
Injection is disabled on the switch on the frontplate or via
the opto-coupler input.
Only the green LED is lit during normal operation.
· Toggle switch ENABLE, DISABLE:
Position 0 : Injection enabled.
Position 1 : Injection disabled.
ABB Switzerland Ltd REG 316*4 1MRB520049-Uen / Rev. C
2-10
· Reset button RESET:
The protection circuit latches when it operates and is reset
by this button upon which the red LED extinguishes.
The protection circuit guards against excessive feedback
from the generator and interrupts the injection for zero-
crossing currents ³ 5 A.
The protection circuit will not reset, if the fault that caused it to
pick up is still present. In such a case, switch off the supply and
check the external wiring for short-circuits and open-circuits.
· Opto-coupler input:
This has the same function as the reset button and can
also be used to disable injection. The latter occurs when
the input is at logical ‘1’. Injection is resumed as soon as
the input returns to logical ‘0’.
Important:
Ensure that the injection voltage is switched off before car-
rying out any work at the star-point. The toggle switch on
the front of the injection unit REX 010 must be set to
“disable” and the yellow LED “disabled” must be lit.
The input voltage, the injection frequency and the opto-coupler
voltage must be specified in the customer’s order and are then
set in the works prior to delivery.
There are no controls inside the unit which have to be set by the
user.
Supply failure
If the green LED ‘READY’ is not lit in the case of version U1 al-
though the correct auxiliary supply voltage is applied, check and
if necessary replace the fuse on the supply unit 316NE61. The
fuse holder is
located at the rear next to the auxiliary supply termi-
nals.
Fuse type: cartridge 5 x 20 mm
2 A slow
Faulty U2 and U3 units must be returned to the nearest ABB
agent or directly to ABB Switzerland Ltd., Baden, Switzerland.
/
