Regulus uREG User manual

uREG
UNIVERSAL BAY CONTROLLER UNIT
&PROTECTION RELAY
USER MANUAL
REGULUS, POZNAŃ 2011-2018
Version 1.14_ENG

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LogCZIP® and uREG® are registered trademarks of REGULUS Zygmunt Liszyński.

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SAFETY RULES
Operating or tested electric equipment is connected to sources supplying electric energy.
Therefore, some parts of the equipment may expose dangerous voltage. Also, for a certain period of
time after disconnection, this voltage may continue to exist across some elements or equipment
terminals. Failure to follow warnings or use the equipment properly may pose a hazard of injuries
and/or cause damage to the equipment.
Proper and safe operation depends on proper transport and handling, appropriate storage, installation
and final inspection prior to start-up, proper functioning as well as careful maintenance and service.
Proper earthing of the equipment must be established.
Therefore, any work with the device and operation of the controller unit should be entrusted only to
qualified personnel.
QUALIFIED PERSONNEL means any person who:
- is authorized to install, commission and operate equipment and the associated system,
- is authorized to perform switching operations in substation bays in accordance with safety instructions,
- is trained in safe equipment operation in accordance with standards,
- is trained in OH&S and first aid.
CAUTION
The documentation of the uREG relay contains necessary instructions relating to installation, start-up
and operation of the equipment. However, it is not possible to mention all essential circumstances or
detailed information regarding all probable concepts in this particular document. In case of any doubt or
specific problem, please refrain from any action until an authorized confirmation is obtained. In this
case, please consult technical staff at REGULUS to obtain necessary explanations.

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DECLARATION OF CONFORMITY
Manufacturer:
REGULUS Zygmunt Liszyński,
ul. Bonin 20/28, 60-658 Poznań,
ul. Piątkowska 122/9 – 10, 60-649 Poznań,
Poland
hereby declares that
Universal Bay Controller and Protection Device: uREG®
has been designed and manufactured in conformance with essential requirements
provided in
Directive 2014/30/EU of the European Parliament and of the Council
of 26 February 2014
on the harmonisation of the laws of the Member States
relating to electromagnetic compatibility
(recast)
and in accordance with recommendations provided in the following standards
PN-EN 60255-1:2010 (Measuring relays and protection equipment.
Part 1: Common requirements),
PN-EN 60255-25:2002 (Electrical relays. Part 25: Electromagnetic
emission tests for measuring relays and protection equipment),
PN-EN 60255-26:2013 (Measuring relays and protection equipment.
Part 26: Electromagnetic compatibility requirements),
PN-EN 60255-27:2006 (Measuring relays and protection equipment.
Part 27: Product safety requirements),
PN-EN 61000-6-2:2008 (Electromagnetic compatibility (EMC).
Part 6-2 Generic standards. Immunity for industrial environments) and
related standards.
The equipment shall be used in accordance with requirements provided in the operating
manual.
2013.05.10. –2018.07.16. Zygmunt Liszyński

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TABLE OF CONTENTS
1. INTRODUCTION & INTENDED USE............................................................................................................................ 9
2. SCOPE OF THE MANUAL ........................................................................................................................................... 9
3. FUNCTIONS AND FEATURES ................................................................................................................................... 10
4. TECHNICAL DATA.................................................................................................................................................... 14
5. INSTALLATION DATA............................................................................................................................................... 19
6. DESIGN AND STRUCTURE OF THE uREG SYSTEM.................................................................................................... 24
6.1. HARDWARE ............................................................................................................................................................ 24
6.2. SOFTWARE STRUCTURE.......................................................................................................................................... 27
7. uREG HARDWARE MODULES................................................................................................................................. 28
7.1. IF-0 / IF-4 MODULE (SLOT 0)................................................................................................................................ 29
7.2. IF-1 / IF-2 MODULE (SLOT 0)................................................................................................................................... 30
7.3. IF-4 MODULE (SLOT 0)............................................................................................................................................ 30
7.4. CT-0 MODULE (SLOT 1)........................................................................................................................................... 31
7.5. VP-0 MODULE (SLOT 1) .......................................................................................................................................... 32
7.6. VT-0 / VT-5 MODULE (SLOT #2) ............................................................................................................................. 33
7.7. VT-2 / VT-1 MODULE (SLOT #2).............................................................................................................................. 34
7.8. VT-3 / VT-4 / VT-8 MODULE (SLOT #2) ................................................................................................................... 35
7.9. VT-6 MODULE (SLOT #2)......................................................................................................................................... 36
7.10. VT-7 MODULE (SLOT #2)......................................................................................................................................... 36
7.11. PS -0/ SS-0 MODULE (SLOTS 3 & 6) ........................................................................................................................ 37
7.12. PS -1 MODULE (SLOTS 3 & 6).................................................................................................................................. 38
7.13. CR-0 MODULE (SLOTS 3 to 13…)............................................................................................................................. 39
7.14. CM-0 MODULE (SLOTS 3 to 13…)............................................................................................................................ 40
7.15. CO-0 MODULE (SLOTS 3 to 13…) ............................................................................................................................ 41
7.16. CI-0 MODULE (SLOTS 3 to 13…).............................................................................................................................. 41
7.17. IO-0 MODULE (SLOTS 3 to 13…) ............................................................................................................................. 42
7.18. GP-0 MODULE (SLOTS 6 to 13…) ............................................................................................................................ 42
7.19. FIXED HARDWARE CONFIGURATIONS .................................................................................................................... 44
8. OPERATOR PANEL –FRONT PANEL ........................................................................................................................ 45
8.1. COMMON FEATURES OF THE PANELS .................................................................................................................... 47
8.2. SIGNALING LEDs ..................................................................................................................................................... 47
8.3. KEYBOARD .............................................................................................................................................................. 48
8.4. LCD SCREEN ............................................................................................................................................................ 50
8.4.1. MONOCHROMATIC ALPHANUMERIC DISPLAY ....................................................................................................... 50
8.4.2. COLOUR GRAPHIC DISPLAY .................................................................................................................................... 50
8.4.3. TEXTS...................................................................................................................................................................... 51
8.5. RS-232 COMMUNICATION LINK ............................................................................................................................. 52
8.6. USB COMMUNICATION LINK (B-TYPE).................................................................................................................... 52
9. uREG APPLICATION SOFTWARE.............................................................................................................................. 53
9.1. EDITING THE LogCZIP APPLICATION ....................................................................................................................... 54
9.2. PROJECT COMPILATION.......................................................................................................................................... 60

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9.3. STATIC DEBUGGER ..................................................................................................................................................60
9.4. uREG DYNAMIC DEBUGGER ....................................................................................................................................62
10. uREG START-UP.......................................................................................................................................................63
10.1. BOOT mode.............................................................................................................................................................63
10.2. APPLICATION mode.................................................................................................................................................65
10.2.1. START AND VERIFICATION.......................................................................................................................................65
10.2.2. OPERATION .............................................................................................................................................................65
11. MENU......................................................................................................................................................................67
12. KEYBOARD OPERATIONS .........................................................................................................................................71
12.1. PASSWORD..............................................................................................................................................................71
12.2. DATE AND TIME SETTINGS ......................................................................................................................................72
12.3. DISPLAY SETTINGS...................................................................................................................................................73
12.3.1. BRIGHTNESS &CONTRAST.......................................................................................................................................73
12.3.2. HISTORY ..................................................................................................................................................................73
12.4. MINI-MONITOR (GH / GV).......................................................................................................................................73
13. MEASUREMENTS.....................................................................................................................................................74
13.1. SECONDARY MEASUREMENTS ................................................................................................................................76
13.2. PRIMARY MEASUREMENTS.....................................................................................................................................78
14. EVENT RECORDER –REPORTS .................................................................................................................................81
14.1. REPORTS –PREVIEW THOUGH uREG MENU ...........................................................................................................81
14.2. REPORTS –PREVIEW THOUGH THE APPLICATION SOFTWARE ...............................................................................83
14.3. SYSTEM REPORTS ....................................................................................................................................................84
15. DATA RECORDERS ...................................................................................................................................................86
15.1. DAR - Digital and Analog Recorder..........................................................................................................................86
15.2. CDAR - Criterial RMS Recorder................................................................................................................................88
16. COMMUNICATION ..................................................................................................................................................89
16.1. GENERAL COMMUNICATION RULES .......................................................................................................................89
16.1.1. RS-232 INTERFACE...................................................................................................................................................90
16.1.2. USB INTERFACE (B-type) .........................................................................................................................................91
16.1.3. RS-485 /AUX-485 INTERFACES ................................................................................................................................92
16.1.4. PN-485 INTERFACE (PANEL) ....................................................................................................................................93
16.1.5. ETHERNET (ETH) INTERFACE ...................................................................................................................................94
16.2. COMMUNICATION SETTINGS ..................................................................................................................................96
17. TESTS AND EVALUATION OF PERFORMANCE........................................................................................................100
17.1. TEST CLASSIFICATION............................................................................................................................................100
17.2. MEASURED INTERNAL PARAMETERS ....................................................................................................................101
17.3. ON-DEMAND TESTS...............................................................................................................................................101
17.3.1. LED TEST................................................................................................................................................................101
17.3.2. SERIAL NUMBER....................................................................................................................................................102
17.3.3. PROJECT SIGNATURE.............................................................................................................................................102
18. FAULT TROUBLESHOOTING...................................................................................................................................103
19. PERFORMANCE AND INTERNAL TESTING..............................................................................................................105
20. STORAGE / PRIOR TO OPERATION ........................................................................................................................106

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21. GUIDELINES FOR THE PURCHASER ....................................................................................................................... 107
22. WARRANTY........................................................................................................................................................... 107

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1. INTRODUCTION & INTENDED USE
uREG®is a universal Intelligent Electronic Device (IED) providing fault protection,
measurements, control, communication, logging, to be operated together with automation
solutions installed in MV and HV power system substations.
uREG is based on many years of experience gained by its designers during development,
production and operation of previous versions: uCZIP and systems such as CZIP and
CZIP-1,2,3,4.
Applications of uREG include:
commercial power industry,
power stations and CHP plants,
wind and hydroelectric power stations, biogas plants, cogeneration, photovoltaics, etc.,
industry.
uREG provides protective functions for equipment and consumer devices associated with a
bay in the scope of different fault criteria: over and undercurrent, over and undervoltage,
admittance, over and underfrequency, power, delay and non-delay, measurements and logging
of electrical quantities as well as execution of substation automatic controls.
A modular flexible hardware design of the equipment ensures maximum adaptation to the
scheme of a specific application in the power sector and industry. Also, it guarantees
optimization of project expenditures by providing high functionality, even if the simplest
configuration is selected.
Three versions of operator panels (including two panels with high resolution color displays),
with a wide range of I/O modules and options of enclosure installation methods can be used to
customize the equipment to individual needs.
The device supports many transmission protocols (including DNP3 and IEC-60870) to ensure
communication conforming to currently applicable and, by compliance with IEC-61850, also
upcoming standards. Also, uREG is designed for operation together with a supervisory system
or locally via PTP IEEE1588 for precise time synchronization of devices.
Hardware unification enables dedicating uREG to a specific bay, mostly by means of its
software (APPLICATION), with the hardware-based approach limited to a minimum.
2. SCOPE OF THE MANUAL
This manual relates to uREG which is a common hardware/software base for
comprehensive bay operations in a power system substation with regards to protective
functions, measurements, controls, communication, logging and operation together with
substation automation solutions.
The part of uREG defining soft functionality (ie. dedication to a specific bay) is referred to as
APPLICATION (Applications are described in a separate manual).

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3. FUNCTIONS AND FEATURES
(depending on the developed APPLICATION)
The most important features:
Short-circuit overcurrent fault protection (ANSI 50/51) from effects of line-to-line short-circuit
fault with an independent single-stage characteristic curve. For the short time after operational
power-up of a bay, current and time settings can be dynamically modified by adjustable
increments to shift the tripping shutdown point. Increments become inactive after successful
closing. The protection function can be deactivated. Activation is possible.
Time-dependent overcurrent protection (51) provides three dependent time-current
characteristic curves with a different slope: moderate, standard and rapid. Tripped protection
results in shutdown. The protection function can be shut down.
Overcurrent protection against overloading (51) with one-stage feature. The protection can be
shut down, set to respond to a signal or trip-out.
Negative sequence overcurrent fault protection (51_2).
Directional power interlock (32) for any protective function (67).
Voltage (59) protective functions including the overvoltage (59P) fault protection and the
undervoltage (59U) fault protection, both of which have independent characteristic curves;
they are of single-stage type; optionally to be shut down; they can cause local and general-
substation (UP) alarms or tripping; for both cases, it is possible to select the increase (decrease)
mode for one voltage or all voltages simultaneously.
Line-to-earth short-circuit fault protections group according to selectable criteria relating to:
overcurrent (directional or nondirectional)with an independent characteristic curve, admittance
and susceptance. The unit is equipped with a common input for Ferranti-Holmgreen filters.
Protective functions can be shut down, and used to activate local or substation (UP) alarms or
cause trip-out. Admittance criteria are activated once threshold U0> (predefined by setting) is
exceeded.
Under (81L) and overfrequency (81O) fault protection.
Derived frequency criterion (df/dt) (81R –Rate-Of-Change Of Frequency).
‘Vector shift’ criterion (three-phase type), adjustable within the range of 1 to 25 angle degrees
(measuring accuracy 0.5 deg), instantaneous (internal time approx. 30 ms).
Current asymmetry criterion (60P).
Differential fault protection (87, 87T, 87G) for each phase with multi-slope bias characteristics
and selectable slope knee point. Ideally suited for the protection of transformers with two or
three windings configured in one of the most popular vector group (Yy0,Yy6,Yd1,Yd5,Yd7,Yd11).
In this case 2nd and 5th harmonic restraint functions can be applied. The differential protection
function is also suitable for generators and large motors against two or three phase internal
faults and inter-turn faults.
Three-phase overpower (P3f>) and underpower (P3f<) protection for active power with an 1-
second average, adjustable for the active power value across device terminals within the range
of 10 to 1000 W (easily converted into primary power by multiplying the setting by the thetaIf
current transformation ratio and voltage transformation ration –i.e. 150 for the 15 kV grid),
with directional setting in three modes: non-directional, positive power direction, negative
power direction.
Three-phase overpower (Q3f>) and underpower (Q3f<) protection for reactive power with an
1-minute average, adjustable for the reactive power value across device terminals within the
range of 10 to -1000 var (easily converted into primary power by multiplying the setting by the
thetaIf current transformation ratio and voltage transformation ration –i.e. 150 for the 15 kV
grid), with directional setting in three modes: non-directional, positive power direction, negative
power direction.
Cooperation with external protective devices via terminals of input signals.

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Distributed busbar protection in incoming feeders and busbar protection interlock in outgoing
feeders (activated if current setting IZS>> is exceeded).
Closing interlocks for any selectable criteria.
Distributed multistage smart load (SCO) and load restoration (Reclose the circuit breaker after
tripping ANSI 79 - SPZ/SCO) automation and/or two-stage SCO automation, centralized with
SPZ/SCO.
Capability to operate together with other substation automation solutions –start-up of a local
circuit-breaker failure protection (LRW) with a separated contact-type input.
Operation together with current transformers with the rated secondary current of 1 A or 5 A.
Support of the following configurations of busbars disconnectors:
a) single-type busbars:
- disconnectors in conventional configurations,
- three-position disconnectors, including disconnector-earthing switch,
- switchgear w/ withdrawable circuit-breaker segment,
b) double-type busbars:
- two systems of disconnectors,
- disconnector-earthing switch and disconnector.
Control of circuit-breaker and electric driving mechanism of bay disconnectors (depending on
the current APPLICATION version, the control is operated via keyboard using three additional
buttons; operation together with a conventional controller is optional).
Summation of braking currents (switched Amperes) by the circuit-breaker in four adjustable
ranges.
Interlock against “surging”, i.e. multiple closing operations of the circuit-breaker during short-
circuit.
Switch-off and switch-on heavy contacts relays (type SR6 –number of relays depending on
module configuration), dedicated to operate together with circuit-breaker coils (in emergency,
the contact can break a circuit with a typical breaker coil resistance of 185 Ohm without risk of
damage. The number of such emergency operations is up to 300.
Make-contact SPST NO and change-over relays SPDT (number depending on module
configuration), used to fulfill additional functions.
Free allocation of digital inputs (physical terminals and computer inputs) and relay outputs to
selected functions of the application.
Unipolar and bipolar digital inputs (number depending on module configuration), including
inputs with a programmable sensitivity threshold setting >20/>50 V DC and bipolar inputs (with
220/24 V DC input resistance to be readjusted by program).
All logic inputs and outputs are programmable, independently of whether they are
described in external wiring diagrams as dedicated to a specific function or not.
Visual signaling on the LCD screen (QVGA color or alphanumeric –2x16 characters),
programmable LEDs (monochromatic or two-color) –depending on the operator panel type,
two diodes to indicate the circuit-breaker status (for configurations w/o graphic display), diode
to indicate proper device operation, diode AW to indicate emergency shutdown, diode UP to
indicate bay supervision request and diodes to indicate activity of interfaces, and remote control
interlock (BTS) diodes.

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Conventional remote control (telemechanics) by wired circuits for receiving/transmitting
signals (via terminal inputs/outputs) as an alternative to communication channels.
Operation of substations switchgear with SF6 and enclosed switchgears (support of relief
vents).
Measurements of true RMS values for 12 analog voltage and current signals, power coefficient
tgor cosand derivative values: frequency, active/reactive power and selected type of
energy (including subdivision into day-time zones) and admittance, conductance and
susceptance of earth fault branch (conditionally, when U0>U0n is satisfied), based on calculated
RMS values.
Up to 4 banks for main settings + 1 bank for auxiliary settings (for transmission channels set-
points purposes).
Event log recorder which can save 1024 reports (stored in non-volatile memory), each day and
time-stamped with resolution up to 100us, event code as protocol index (e.g. DNP3), and user
definable description.
Data recorder (DAR) which records recent samples in an active circular buffer; in a standard
version, buffer memory can be organized in one of the following buffer configurations: 2 *
20.48s (ie. 2 buffers, each of 20.48s) , 4 * 10.24s, 8 * 5.12s, 16 * 2.56s, 32 * 1.28s, 2 * 40.96s, 4 *
20.48s, 8 * 10.24s, 16 * 5.12s or 32 * 2.56s.
There are always 10 electrical quantities recorded in each buffer.
→ Example: configuration with CT-0 + VT-0:
• Voltage U12 • Current I1
• Voltage U23 • Current I2
• Voltage U31 • Current I3
• Voltage U0 • Current I0
• Input AUXI0 (VT) • Current Ig
and 96 digital values (states of functors).
For IF-4 modules, the range of buffer configuration is extended by the following settings:
2 * 81.92 s, 4 * 40.96 s, 8 * 20.48 s, 16 * 10.24 s and 32 * 5.12 s.
In addition, the IF-4 module (combined with MB-2/3) provides a data recorder operating at 3200
Hz (64 samples per period) and even a wider buffer configuration range and up to 192 digital
states to be recorded.
Criteria recorder (CDAR) –records up to 16 selectable RMS values in max. 32 buffers with
settable recording frequency.
Time synchronization acc. to IEEE 1588 PTP with a precision of 1 us with autonomic local
synchronization (if no supervisory system is present).
Operation together with a supervisory system via:
–two independent RS-485 links –to be selected with one of many transmission protocols:
uCZIPstd, uCZIPnet, DNP-3.0, IEC-60870-5-101, IEC-60870-5-103, CZIPstd (backward
compatibility), Modbus, CAN-PPM2, etc. It is possible to use optical fiber cables (FO);
–10/100 Mb Ethernet link –to be selected with TCP / UDP protocols (with protocol tunneling:
uCZIPstd, DNP-3.0, etc.) and IEC-60870-5-104.
Operation with a local PC via independent communication interfaces: RS232 and USB (via
uCZIPstd and uCZIPnet).
Self-check of operational correctness of important unit elements; all semiconductor
components are manufactured according to reliable static logic (also in case of memory) for
industrial applications.
Software upgrade –all software components (both firmware and the APPLICATION for a given
bay) can be reprogrammed via RS-232, RS-485 and USB.

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Access to change settings via operator panel keyboard, secured by a two-level user code (two
buttons pressed in a defined sequence). Changing settings via PC requires no password. The
manufacturer recommends changing settings via PC since this approach is simple.
Universal power supply by DC or AC within a wide voltage range, optionally “hot standby” (two
power units); quick operational readiness after device powering-up (typically 3.5 seconds).

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4. TECHNICAL DATA
Phase current input circuits
Rated current In 5 A or 1A
Measurement range 0 ÷ 192 A
Measurement error within ranges: 0.05 ÷ 0.35 A <5 %
0.35 ÷ 50 A <1.5 %
50 ÷ 192 A <5 %
Power input at I=In <0.5 VA
Rated frequency fn 50 Hz
Continuous current-carrying capacity 3 * In
1-second thermal endurance 100 * In
Dynamic withstand value (surge current) 250 * In
Phase voltage input circuits [VT-0, VT-2, VT-3]
Rated voltage Un 100 V
Measurement range 0 ÷ 130 V
Measurement error within the measuring range <1.5 %
Power input at U=Un <0.4 VA
Rated frequency fn 50 Hz
Continuous voltage endurance* 1.4 * Un
Phase voltage input circuits [VT-1, VT-4, VT-5, VT-7, VT-8]
Rated voltage Un 230 V
Measurement range 5 ÷ 500 V
Measurement error within the measuring range <3 %
Power input at U=Un <1 VA
Rated frequency fn 50 Hz
Continuous voltage endurance* 1.5 * Un
Zero-sequence current input circuit
Rated current Ion 1 A
Measurement range 0 ÷ 10 A
Measurement error within ranges: 3 ÷ 25 mA <5 %
25 mA ÷ 3.5 A<1.5 %
3.5 ÷ 10 A <5 %
Power input at I=Ion <0.28 VA
Rated frequency fn 50 Hz
Continuous current-carrying capacity 3 * Ion
1-second thermal endurance 100 * In
Dynamic withstand value (surge current) 250 * Ion
Forceful short-circuit overcurrent protection
Tripping current setting range I>> 0.9 ÷ 100 A or 0.1 ÷ 50 A
Internal operate time for 2-fold overcurrent value 20 ÷ 50 ms (typical 35 ms)
Adjustable resetting ratio 0.910 ÷ 0.985

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Dependent overcurrent protection
Activity and mode of the dependent criterion RI > inactive, OW
Overcurrent-stage starting current I> 0.3...50 A
Time delay of 2-fold overcurrent tI> 0.05...24 s
Slope of the dependent characteristic curve wtI > moderate,
standard, rapid
Short-circuit overcurrent protection
Tripping current setting range I> 0.1 ÷ 50 A
Internal operate time time for 2-fold overcurrent value 20 ÷ 50 ms (typical 35 ms)
Adjustable resetting ratio 0.910 ÷ 0.985
Differential overcurrent protection
Internal operate time for 2-fold overcurrent value 15 ÷ 40 ms (typical 22 ms)
Internal operate time with harmonic lock-out 25 ÷ 50 ms (typical 30 ms)
Inrush stabilization (harmonic restraint deviation) +- 10%
Overvoltage protection [VT-0, VT-2, VT-3]
Line-to-line operating voltage of overvoltage protection U> 5 ÷ 130 V
Internal operate time for 2-fold value of exceeded setting 20 ÷ 50 ms (typical 35 ms)
Adjustable resetting ratio 0.910 ÷ 0.985
Undervoltage protection [VT-0, VT-2, VT-3]
Line-to-line operating voltage of undervoltage protection U< 5 ÷ 130 V
Internal operate time for 2-fold value of exceeded setting 20 ÷ 50 ms (typical 35 ms)
Adjustable resetting ratio 1.015 ÷ 1.059
Under and overfrequency protection
Minimum voltage threshold of protection start-up f< and f> 18 V
Internal operate time for 2-fold value of exceeded setting 60 ÷ 85 ms (typical 65 ms)
Adjustable resetting ratio for f> and f< 0.05 Hz
Measurement range 45 –55 Hz
Frequency measurement deviation +- 3 mHz max.
df/dt frequency derivative protection (ROCOF)
Minimum voltage threshold of protection start-up df/dt 18 V
Internal operate time for 2-fold value exceeded threshold 60 ÷ 85 ms (typical 65 ms)
Adjustable resetting ratio for f< 0.910 ÷ 0.985
Measurement range 0.1 –25 Hz/s
Protection against contact lost with power grid (Vector Shift)
Recognized vector shift of line-to-line voltage vectors (in 3-phase)
within the range 0 to 60° with an accuracy of 0.5°; adjustable within 1 - 25°
Internal operate time app. 30 ms

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Line-to-earth short-circuit fault protection
Starting current of Io> 50 ÷ 5000 mA
Internal start-up time for 2-fold value of exceeded setting 20 ÷ 50 ms (typical 35 ms)
Adjustable resetting ratio 0.910 ÷ 0.985
Admittance non directional protective functions Y0>, G0>
Admittance directional protective functions G0k>, B0k>
Current I0 vs. voltage U0 phase angle correction: fii -90÷ +90
Starting admittance Y0> 0.50 ÷ 50 mS
Internal start-up time for 2-fold value of exceeded setting 50 ÷ 75 ms (typical 60 ms)
Adjustable resetting ratio 0.910 ÷ 0.985
Starting conductance G0>, G0k> 0.50 ÷ 5.0 mS
Internal start-up time for 2-fold value of exceeded setting 50 ÷ 75 ms (typical 60 ms)
Adjustable resetting ratio 0.910 ÷ 0.985
Starting susceptance B0k> 0.50 ÷ 5.0 mS
Internal start-up time for 2-fold value of exceeded setting 50 ÷ 75 ms (typical 60 ms)
Adjustable resetting ratio 0.910 ÷ 0.985
Busbar protection interlock
Starting current of busbar protection interlock IZS>> 0.1 ÷ 50 A or 0.9 ÷ 100 A
Internal start-up time for 2-fold value of exceeded setting 20 ÷ 50 ms (typical 35 ms)
Adjustable resetting ratio 0.910 ÷ 0.985
Binary input circuits (IO-0 module):
Remote control (telemechanics) circuits
- rated input voltage (adjustable by settings) 24 V or 220 V DC
- input voltage range (24V) 17 ÷ 32 V
or (220 V) 88 ÷ 253V
- current input at 24 V or 220 V <3 mA
Other circuits:
- input voltage 88 ÷ 253 V
- current input at 220 V < 3 mA
Special ordering option: AC inputs 230 VAC
Remote control (telemechanics) circuits (CM and CR modules):
- rated input voltage (adjustable by settings) >20 V or >50 V
- input voltage range (24V) 20 ÷ 36 V
or (220 V) 50 ÷253 V
- current input at 24 V or 220 V <3 mA
Other circuits:
- input voltage 88 ÷ 253 V
- current input at 220 V < 3 mA
Special ordering option: AC inputs 230 VAC

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Signaling relay output circuits
Rated voltage 220 V DC
Continuous current-carrying capacity 1 A
Inductive circuit breaking: 220 V DC, L/R= 40 ms 0.1 A
or
Rated voltage 250 V AC
Continuous current-carrying capacity 5 A
Breaking capacity: 220 V AC, cos =0.4 2 A
High-break contacts relay for use with the circuit-breaker coils
OW and ZW outputs:
Rated voltage 220 V DC
Continuous current-carrying capacity 2 A
Inductive circuit breaking: 220 V DC, L/R= 40 ms 1.2 A / 300 cycles
or
Rated voltage 250 V AC
Breaking capacity 8 A
Absolute accuracy of time delays
Delays acc. to precise setting ±1.5 ms
Delays acc. to accurate setting ±20 ms
Delays acc. to rough setting ±1 s
Delays acc. to long-time setting ±1 s
Input signals absolute positioning accuracy
For DC logic input signals <16 ms
For AC logic input signals 25 ÷40 ms
Explanation: This value results from filtration or input signal computation.
Power supply (PS-0)
Rated supply voltage 220 VDC (or 230 VAC)
Admissible range of supply voltage changes DC 88 ÷ 365 V DC
Admissible range of supply voltage changes AC 100 ÷ 260 V AC
Power input at 220 V DC <15 W (typ. 7.5W)
Device readiness after power-up 3.5 s
Power supply (PS-1)
Rated supply voltage 24 VDC
Admissible range of supply voltage changes DC 21 ÷ 38 V DC
Power input at 24 V DC <15 W (typ. 7.5W)
Device readiness after power-up 3.5 s
Insulation electric strength
For input circuits: - sinusoidal voltage 2 kV/60 s/0.5 kVA
- surge impulse voltage 5 kV/ 1.2/50 s/0.5 J
Contacts of relays - sinusoidal voltage 1 kV/60 s/0.5 kVA
I/O power unit - sinusoidal voltage 2.5 kV/60 s/0.5 kVA

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Immunity to external interference
Interfering signal 2.5 kV/1 MHz/400 ud/s
Environmental conditions
Ambient temperature -5 oC...+55 oC
Storage temperature -25 oC...+70 oC
Atmospheric pressure >800 hPa
Relative humidity <75% - no condensation or frost and ice formation inside case
Housing
High-grade steel (A4), acid-proof
Panel flush mounting and panel surface mounting: vertical / horizontal / lateral
IP rating of flush-mount enclosure:
- on the panel side IP 52
- on the terminal side IP 40
IP rating of panel surface-mount enclosure: IP 53
External dimensions and weight (7-slot enclosure)
Dimensions (integrated panel) H x W x D
- flush mounting: 240 x 150 x 124 mm
- panel surface mounting: 270 x 150 x 200 mm
Weight 3.5 kg
Serviceable elements none

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5. INSTALLATION DATA
For panel flush installation (7-slot enclosure).
Mechanical installation for the integrated panel version.
Drilling diagram.

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Panel flush (#2) version.
Mechanical installation for the remote panel version.
Drilling diagram for the panel.
Drilling diagram for 7-slot enclosure installation.