ZIV 7IRD-A User manual

Instructions Manual for 7IRD-A/J/M Models
M7IRDA2003Iv00
REV. 00 - March, 2020 ©ZIV APLICACIONES Y TECNOLOGÍA, S.L.U. 2020
7IRD-A/J/M
Distribution
Protection & Control
Terminal

I M7IRDA2003I
7IRD-A/J/M: Distribution Protection & Control Terminal
© ZIV APLICACIONES Y TECNOLOGÍA, S.L.U. 2020
Table of Contents
1.Description ........................................................................................................... 1-1
1.1General Overview .................................................................................................. 1-2
1.2Protection Subsystem Functions ........................................................................... 1-3
1.2.1Non-Directional Overcurrent Protection 3-Phase and Ground .............................. 1-3
1.2.2Recloser (7IRD-A/J Models) .................................................................................. 1-3
1.2.3Breaker Failure Protection ..................................................................................... 1-3
1.2.4Open Phase Protection .......................................................................................... 1-3
1.2.5Residual Current Detection (Neutral Unbalance Unit) ........................................... 1-3
1.3Control Subsystem Functions ................................................................................ 1-4
1.3.1Local Control and Status Indication of all Bay Elements ....................................... 1-4
1.3.2Local Recloser Control (7IRD-A/J Models) ............................................................ 1-4
1.3.3Measurement Presentation.................................................................................... 1-4
1.3.4Presentation of Local Alarms as Conventional Alarms ......................................... 1-4
1.3.5Indication of Digital Inputs / Outputs ...................................................................... 1-4
1.3.6Indication of Auxiliary Inputs / Outputs States and Protection LEDs ..................... 1-4
1.4Additional Functions .............................................................................................. 1-5
1.5Model Selection ..................................................................................................... 1-7
2.Technical Data ..................................................................................................... 2-1
2.1Power Supply Voltage ........................................................................................... 2-2
2.2Protection Subsystem ............................................................................................ 2-2
2.2.1Power Supply Burden ............................................................................................ 2-2
2.2.2Current Analog Inputs ............................................................................................ 2-2
2.2.3Measurement Accuracy ......................................................................................... 2-2
2.2.4Accuracy of Time Measurement ............................................................................ 2-2
2.2.5Repeatability .......................................................................................................... 2-3
2.2.6Transient Overreach .............................................................................................. 2-3
2.2.7Status Contact Inputs ............................................................................................ 2-3
2.2.8Trip and Close Outputs .......................................................................................... 2-4
2.2.9Auxiliary Contact Outputs ...................................................................................... 2-4
2.3Control Subsystem ................................................................................................ 2-5
2.3.1Power Supply Burden ............................................................................................ 2-5
2.3.2Current Analog Inputs (Measurement Circuit Board) ............................................ 2-5
2.3.3Voltage Inputs (Measurement Circuit Board) ........................................................ 2-5
2.3.4Measurement Accuracy (Measurement Circuit Board) ......................................... 2-5
2.3.5Accuracy of Time Measurement ............................................................................ 2-5
2.3.6Status Contact Inputs ............................................................................................ 2-6
2.3.7Double Contact Outputs (SD1 and SD2) ............................................................... 2-6
2.3.8Simple Contact Outputs ......................................................................................... 2-6
2.3.9Transducer Input/Outputs ...................................................................................... 2-6
2.4Communications Link ............................................................................................ 2-7
3.Standards and Type Test .................................................................................... 3-1
3.1Insulation................................................................................................................ 3-2
3.2Electromagnetic Compatibility ............................................................................... 3-2
3.3Environmental Test ................................................................................................ 3-3
3.4Power Supply ......................................................................................................... 3-3
3.5Mechanical Test ..................................................................................................... 3-3
4.Physical Architecture .......................................................................................... 4-1
4.1General .................................................................................................................. 4-2

Table of Contents
M7IRDA2003I
7IRD-A/J/M: Distribution Protection & Control Terminal
© ZIV APLICACIONES Y TECNOLOGÍA, S.L.U. 2020 II
4.2Protection and Control Interconnection ................................................................. 4-3
4.3Dimensions ............................................................................................................ 4-3
4.4Connection Elements ............................................................................................. 4-4
4.4.1Terminal Connectors and Connector Blocks ......................................................... 4-4
4.4.2Removing of Printed Circuit Boards (Non Self-shorting) ....................................... 4-4
5.Settings ................................................................................................................. 5-1
5.1Protection Subsystem Settings .............................................................................. 5-2
5.1.1Configuration Settings ............................................................................................ 5-2
5.1.2General Settings .................................................................................................... 5-2
5.1.3Protection Settings ................................................................................................. 5-3
5.1.4Recloser Settings (7IRD-A/J Models) .................................................................... 5-4
5.1.5Logic Settings......................................................................................................... 5-6
5.1.6Breaker Monitoring Settings ................................................................................... 5-7
5.1.7Metering History Log .............................................................................................. 5-7
5.1.8Oscillographic Recording (Optional) ...................................................................... 5-8
5.2Control Subsystem Settings ................................................................................... 5-9
5.2.1Configuration Settings ............................................................................................ 5-9
5.2.2General Settings .................................................................................................... 5-9
5.2.3Time Settings ....................................................................................................... 5-10
5.2.4Logic Settings....................................................................................................... 5-10
5.2.5Analogic Settings ................................................................................................. 5-10
6.Description of Operation of Protection Subsystem ......................................... 6-1
6.1Overcurrent Elements ............................................................................................ 6-3
6.1.1Time Elements ....................................................................................................... 6-3
6.1.1.aTime/ Current Characteristics ................................................................................ 6-4
6.1.2Instantaneous Elements ........................................................................................ 6-7
6.1.3Overcurrent Units Block Diagrams......................................................................... 6-7
6.1.4Torque Control (Pickup Blocking Enable) .............................................................. 6-8
6.1.5Trip Blocking and Time Delay Disable ................................................................... 6-9
6.2Breaker Failure....................................................................................................... 6-9
6.3Open Phase Element ........................................................................................... 6-10
6.4Residual Current Element .................................................................................... 6-11
6.5General Settings .................................................................................................. 6-12
6.6Recloser (7IRD-A/J Models) ................................................................................ 6-13
6.6.1Reclose Sequence ............................................................................................... 6-13
6.6.2Recloser Lockout ................................................................................................. 6-17
6.6.3Manual Close ....................................................................................................... 6-17
6.6.4Manual and External Blocking ............................................................................. 6-18
6.6.5Definite Trip .......................................................................................................... 6-19
6.6.6Recloser Not in Service ....................................................................................... 6-19
6.6.7Reclose Counter .................................................................................................. 6-19
6.6.8Recloser and Trip Control Masks......................................................................... 6-19
6.7Logic ..................................................................................................................... 6-21
6.7.1Trip Seal-In ........................................................................................................... 6-21
6.7.2Breaker Open and Breaker Close Failure Time ................................................... 6-21
6.7.3Manual Closing through Recloser (7IRD-A/J Models) ......................................... 6-21
6.8Trip and Close Coil Circuit Supervision ............................................................... 6-22
6.8.1Trip Coil Circuit..................................................................................................... 6-23
6.8.2Close Coil Circuit ................................................................................................. 6-23
6.8.3Trip/Close Coil Circuit Supervision Input Programming ...................................... 6-24
6.8.4Trip/Close Output Supervision ............................................................................. 6-24
6.9Breaker Monitoring ............................................................................................... 6-25
6.9.1Excessive Number of Trips .................................................................................. 6-25
6.10Change Settings Group ....................................................................................... 6-26
6.11Event Record ....................................................................................................... 6-27
6.12Fault Reports ........................................................................................................ 6-32

Table of Contents
III M7IRDA2003I
7IRD-A/J/M: Distribution Protection & Control Terminal
© ZIV APLICACIONES Y TECNOLOGÍA, S.L.U. 2020
6.13Metering History Log ............................................................................................ 6-33
6.14Oscillographic Register (Optional) ....................................................................... 6-34
6.15Inputs, Outputs and LED Targets ........................................................................ 6-36
6.15.1Inputs ................................................................................................................... 6-36
6.15.2Auxiliary Outputs and Trip Contact Outputs ........................................................ 6-38
6.15.3LED Targets ......................................................................................................... 6-43
6.16Communications .................................................................................................. 6-44
6.16.1Communications Settings .................................................................................... 6-44
6.16.2Communications Types ....................................................................................... 6-44
6.16.3Communication with the Unit ............................................................................... 6-44
6.17Alarm Codes ........................................................................................................ 6-45
7.Description of Operation of the Control Subsystem ....................................... 7-1
7.1Operational Characteristics ................................................................................... 7-2
7.2Control Unit ............................................................................................................ 7-3
7.2.1Elements of the Control Subsystem ...................................................................... 7-6
7.2.2Inputting Data to the Control Unit .......................................................................... 7-7
7.2.2.aInputs through Communications ............................................................................ 7-7
7.2.2.bInputs from the Protection Subsystem ................................................................... 7-8
7.2.2.cPhysical Inputs ....................................................................................................... 7-8
7.2.2.dHMI Inputs (control HMI) ........................................................................................ 7-9
7.2.3Outputting Data from the Control Unit ................................................................... 7-9
7.2.3.aOutputs through Communications ......................................................................... 7-9
7.2.3.bSignals sent to the Protection Subsystem ............................................................. 7-9
7.2.3.cPhysical Outputs .................................................................................................. 7-10
7.2.3.dHMI Outputs (control HMI) ................................................................................... 7-10
8.Alphanumeric Keypad and Display ................................................................... 8-1
8.1Alphanumeric Display and Keypad ........................................................................ 8-2
8.2Keys, Functions and Operation Modes ................................................................. 8-3
8.3Access to Functions Using Key F2 ........................................................................ 8-6
8.3.1Last Trip Indication and Recloser Status ............................................................... 8-6
8.3.2Screen Sequences Using F2 ................................................................................. 8-7
8.4Function Access Using the Keypad ....................................................................... 8-9
8.5Control Function Access ...................................................................................... 8-22
9.Local Interface: Graphic Display ........................................................................ 9-1
9.1General .................................................................................................................. 9-2
9.2Symbols Associated with the Graphic Display ...................................................... 9-3
9.3Accessing the Information ..................................................................................... 9-6
9.3.1Alarm Panel ........................................................................................................... 9-7
9.3.2Information about the State of Inputs/Outputs and Active LEDs ........................... 9-8
9.3.3Information about the Indication of Measurements ............................................... 9-8
9.3.4Date and Time Information .................................................................................... 9-9
9.4Control Function Operations ................................................................................ 9-10
9.4.1General Procedure for Command Execution ....................................................... 9-10
9.4.2Procedure for Opening/Closing Breakers and Disconnecting Switches ............. 9-11
9.4.3Procedure for Placing a Breaker in Discharge .................................................... 9-12
9.4.4Procedure for Operating on Logic Devices .......................................................... 9-13
9.4.5Procedure for Managing Alarms .......................................................................... 9-13
10.Receiving Tests ................................................................................................. 10-1
10.1General ................................................................................................................ 10-2
10.1.1Accuracy .............................................................................................................. 10-2
10.2Preliminary Inspection ......................................................................................... 10-3
10.3Isolation Test ....................................................................................................... 10-3
10.4Power Supply Test ............................................................................................... 10-3
10.5Protection Subsystem Reception Tests ............................................................... 10-4

Table of Contents
M7IRDA2003I
7IRD-A/J/M: Distribution Protection & Control Terminal
© ZIV APLICACIONES Y TECNOLOGÍA, S.L.U. 2020 IV
10.5.1Metering Tests ..................................................................................................... 10-4
10.5.2Phase and Ground Current Test .......................................................................... 10-4
10.5.3Open Phase Test ................................................................................................. 10-6
10.5.4Residual Current Test .......................................................................................... 10-6
10.5.5Breaker Failure Test ............................................................................................ 10-6
10.5.6Recloser Test (7IRD-A/J Models) ........................................................................ 10-7
10.5.7Trip/Close Coil Circuit Supervision Input Test ..................................................... 10-8
10.6Control Subsystem Receiving Tests .................................................................... 10-8
10.6.1Test Configuration ................................................................................................ 10-8
10.6.2Digital Inputs Test ................................................................................................ 10-9
10.6.3Digital Outputs and LEDs Test ........................................................................... 10-10
10.6.4Metering Test ..................................................................................................... 10-10
10.7Communication Test .......................................................................................... 10-11
10.8Installation .......................................................................................................... 10-12
10.8.1Location .............................................................................................................. 10-12
10.8.2Connection ......................................................................................................... 10-12
A.PROCOME 3.0 Communications Protocol ....................................................... A-1
A.1Settings ................................................................................................................. A-2
A.1.1Configuration Settings ........................................................................................... A-2
A.1.2Logic Settings........................................................................................................ A-2
A.2Description of Operation ....................................................................................... A-3
A.2.1General Settings ................................................................................................... A-3
A.2.2Logic ...................................................................................................................... A-3
A.2.3Event Records....................................................................................................... A-3
A.2.4Fault Report .......................................................................................................... A-4
A.2.5Inputs .................................................................................................................... A-4
A.2.6Communicating with the Unit ................................................................................ A-4
A.3Alphanumeric Keypad and Display ....................................................................... A-5
A.3.1Configuration ......................................................................................................... A-5
A.3.2Settings ................................................................................................................. A-6
A.3.3Accessing the Information ..................................................................................... A-6
B.DNP 3.0 Communications Protocol .................................................................. B-1
B.1Physical Architecture ............................................................................................ B-2
B.2Settings ................................................................................................................. B-2
B.3Description of Operation ....................................................................................... B-3
B.3.1DNP 3.0 Protocol .................................................................................................. B-3
B.3.2Communications ................................................................................................... B-8
B.3.2.aCommunication with the Equipment ..................................................................... B-8
B.4Alphanumeric Keypad and Display ....................................................................... B-8
B.4.1Change Settings ................................................................................................... B-8
B.4.2DNP3.0 Protocol ................................................................................................... B-8
B.4.3Information Access ............................................................................................... B-9
C.Schemes and Drawings ...................................................................................... C-1
D.List of Illustrations and Tables .......................................................................... D-1
D.1List of Figures ........................................................................................................ D-2
D.2List of Tables ......................................................................................................... D-4

1. Description

1.1General Overview ............................................................................................... 1-2
1.2Protection Subsystem Functions ........................................................................ 1-3
1.2.1Non-Directional Overcurrent Protection 3-Phase and Ground ........................... 1-3
1.2.2Recloser (7IRD-A/J Models) ............................................................................... 1-3
1.2.3Breaker Failure Protection .................................................................................. 1-3
1.2.4Open Phase Protection ....................................................................................... 1-3
1.2.5Residual Current Detection (Neutral Unbalance Unit) ........................................ 1-3
1.3Control Subsystem Functions ............................................................................. 1-4
1.3.1Local Control and Status Indication of all Bay Elements .................................... 1-4
1.3.2Local Recloser Control (7IRD-A/J Models) ......................................................... 1-4
1.3.3Measurement Presentation ................................................................................. 1-4
1.3.4Presentation of Local Alarms as Conventional Alarms ....................................... 1-4
1.3.5Indication of Digital Inputs / Outputs ................................................................... 1-4
1.3.6Indication of Auxiliary Inputs / Outputs States and Protection LEDs .................. 1-4
1.4Additional Functions ............................................................................................ 1-5
1.5Model Selection ................................................................................................... 1-7

Chapter 1. Description
M7IRDA2003I
7IRD-A/J/M: Distribution Protection & Control Terminal
© ZIV APLICACIONES Y TECNOLOGÍA, S.L.U. 2020 1-2
7IRD represents a family of integrateable microprocessor-based terminal units for
line/machine protection.
The 7IRD digital design is based on a powerful microprocessor and organized into models to
provide protection, control and metering functions. The protection provided by the standard
models includes: Complete protection of a given position; Monitoring and Annunciation
(remote and optionally local) of any device associated to that position; Analog values metering
(Current, Voltage, Power, …); Capture of information associated to that position, via digital
inputs; Possibility to perform programmable control functions and local interlockings.
7IRD terminal units can be applied individually or combined with other intelligent electronic
devices (IEDs) to form an integrated system for protecting and controlling medium voltage
lines, transformers, generators and feeders in general.
This instruction manual covers the 7IRD-A, 7IRD-J and 7IRD-M, and particular characteristics
are specified where are relevant.
1.1 General Overview
7IRD terminal equipment provides two different subsystems: protection and control. Both are
inter-communicated so that they can cooperate by information exchange, but always
maintaining separate identities for any kind of action. Main features that can be detailed are:
 Devices include independent power supplies for protection and control functions.
 Available communication ports are common for protection and control subsystems.
 Digital input and output contacts are separated for protection and control functions.
 Analog inputs measurement is performed by the protection subsystem thought
independent circuits. There is an option that allows that metering is performed by a
dedicated and specific module.

Chapter 1. Description
1-3 M7IRDA2003I
7IRD-A/J/M: Distribution Protection & Control Terminal
© ZIV APLICACIONES Y TECNOLOGÍA, S.L.U. 2020
1.2 Protection Subsystem Functions
1.2.1 Non-Directional Overcurrent Protection 3-Phase and Ground
Includes four non-directional overcurrent measuring units (three for Phase Overcurrent
protection and one for Ground). On 7IRD-A and 7IRD-M models each unit is comprised of a
time element and an instantaneous element, with additional temporization adjustable. On 7IRD-
J model each unit is comprised of a time element and two instantaneous elements, with
additional temporization adjustable.
Time elements can be selected with the following types of characteristics: Definite Time,
Inverse, Very Inverse, Extremely Inverse and User Programmable.
Time and instantaneous overcurrent elements for phase and ground can be enabled or disabled
using settings. Three setting groups are provided for selecting alternative pre-established time
and instantaneous overcurrent pickup values and time characteristics (one is active and two are
in reserve).
Phase and ground, timed and instantaneous overcurrent pickup and tripping functions can all be
individually targeted.
1.2.2 Recloser (7IRD-A/J Models)
Reclosing can be separately coordinated with external protection as well as with the protection
contained in the terminal unit. Reclosing sequences for phase faults and ground faults can be
set independently.
Reclosing is selectable up to a maximum of four attempts with independent settings for
Recloser timers (dead or open breaker wait times) and reset times. The reclosing sequence is
controlled by the breaker position and by the reclose initiate signal, which permits reclosing
based on the protective elements which operated to trip the breaker.
The trip elements and reclose attempts enabled during a fault clearing and reclosing sequence
are selectable.
Manual closing can be initiated from the terminal unit using its reclosing output contacts. The
close command in this instance is supervised and controlled in the same way as any
permissible automatic reclosing command following a trip from the protection elements.
1.2.3 Breaker Failure Protection
The terminal unit incorporates breaker failure protection elements which detect the continuation
of phase or ground overcurrent and send trip commands to initiate backup tripping of other
breakers.
1.2.4 Open Phase Protection
This element detects open phase conditions by measuring the negative-sequence to positive-
sequence current ratio. Detection of the open phase enables tripping should the setting
threshold be exceeded.
1.2.5 Residual Current Detection (Neutral Unbalance Unit)
Three-phase systems where loads are not connected phase-to-ground can benefit from this
function. A trip is permitted if zero sequence current, which does not reach minimum phase-to-
ground-fault levels, is detected for a preset period of time. The presence of the aforementioned
current would indicate the existence of an unacceptable current unbalance.

Chapter 1. Description
M7IRDA2003I
7IRD-A/J/M: Distribution Protection & Control Terminal
© ZIV APLICACIONES Y TECNOLOGÍA, S.L.U. 2020 1-4
1.3 Control Subsystem Functions
Control subsystem is fully configurable. The following functions are available.
1.3.1 Local Control and Status Indication of all Bay Elements
Breaker trip and close operations can be performed through the terminal unit operation keypad.
These operations are always performed following a pre-programmed logic and taking care of
the input signals from the protection subsystem and the equipment’s status (local or remote).
1.3.2 Local Recloser Control (7IRD-A/J Models)
Recloser can be enabled or disabled from the keypad. Before this command is executed
(enable or disable), the logic decides if it is possible or not. If the order is not executed, a
message will appear on the screen and, if it is finally performed, the Recloser’s symbol on the
screen will change to the new status.
1.3.3 Measurement Presentation
The graphic display shows the current, voltage and power measurements performed by the
control subsystem through protection subsystem or optional metering module.
1.3.4 Presentation of Local Alarms as Conventional Alarms
Information referred to alarm signals is also available in the graphic display. One of the screens
displays the alarms processed in the logic, the ones from the protection subsystem and, finally,
the ones directly obtained from the physical input signals.
1.3.5 Indication of Digital Inputs / Outputs
Every digital input/output can be viewed from the screens in the graphic display.
1.3.6 Indication of Auxiliary Inputs / Outputs States and Protection LEDs
Every auxiliary input/output and protection LEDs can be viewed from the screens in the graphic
display.