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Network Automation Solutions
Answers to demands
The current demographic growth and the continuous industrial development pose challenges for the
current way of producing and distributing electricity.
Energy suppliers must therefore produce more energy while optimizing distribution networks to satisfy
their customers’ requirements of high quality service.
Global solutions are necessary to reduce the duration and frequency of electricity outages.
Ensto Network Automation solutions offer answers
to these demands.
Fast fault detection, automatic isolation of faulty network sections and remote network reconfiguration
are essential part of network automation solutions.
Electricity distribution performance index
To evaluate their performance, electrical utility
companies follow specific international indicators:
• SAIDI (System Average Interruption Duration
Index) which measures the average cumulated
power outage duration in minutes and per
customer.
• SAIFI (System Average Interruption Frequency
Index) which measures the average number of
power outages per customer.
Ensto’s solutions are adaptable
for every network globally to
optimize electricity distribution.
Network Automation
Ensto products overview
9
1 2 3 4
8 10 11
5 6 7
Overhead line network
Overhead line network
Network Automation
Ensto products overview
Auto-reclosers
Switch disconnectors
1
IA2T
Rated voltage: 24/36 kV
Rated current: 400 A
Breaking capacity: 100 A max.
2
3
AUGUSTE
Rated voltage: 24/36 kV
Rated current: 630 A
Breaking capacity: 630 A
ERGOSWITCH
Rated voltage: 12/24 kV
Rated current: 630 A
Breaking capacity: 630 A
4
SMARTCLOSER
Rated voltage: 38 kV
Rated current: 630 A
Breaking capacity: 12,5 kA
Quenching media
Air
SF6
Vacuum
SF6
Epoxy
Isolation media
Air
Sectionalizing function
Can be configured as a sectionalizer.
Can automatically isolate the faulty section of the network after a programmed number of openings of
an auto-recloser located upstream.
Main features
IA2T Air Break Switch responds
to the service quality requirements in terms of reducing
outage duration and frequency.
Air Break Switch is installed on
the main line after a feeder. It
allows feeders to be divided into
shorter sections to distribute
loads or isolate a section of the
network in case of outage.
Remote control enables necessary operations for service
continuity remotely.
Conforms to
international standard
CEI 62271-103
These load break switches are used in all types of overhead distribution networks in rural and suburban areas.
Devices are available as manually or remotely controlled versions.
They are designed to be easily integrated in remotely controlled
SCADA systems.
Modular design of the load break switches makes them adaptable
to network constraints and different operating modes.
Auguste and Ergoswitch load break switches
suit many requirements:
• ensure service continuity
• fast and easy installation
• safe and reliable operation
• improve network cost-effectiveness
Conform to international standards
CEI 62271-103 and CEI 62271-200
Ensto Smartcloser is an intelligent
autonomous device for detecting
overcurrents, interrupting fault
currents and re-energizing the line
by automatic reclosing.
If a fault is permanent the faulty
section will be automatically
isolated from the healthy part of
the network.
Ensto Smartcloser:
• long lifetime
• high level of electrical endurance
• convenient for all type
of networks
• well suited for networks that
require high breaking capacity
• extremely reliable
• safe for installers and end-users
Conforms to international
standard CEI 62271-111
Network Automation
Ensto products overview
Switchgear controllers
5
Controller for
Air Break Switch (
1
)
6
Controller for
Load Break Switch ( 2
ITI-A
3
)
7
Controller for
Auto-recloser ( 4 )
8
Controller for
Ring Main Unit
ITI-S
Type of network
Overhead line
Underground cable
Switchgear compatibility
1 IA2T Air Break Switch
1 Auguste or Ergoswitch LBS
1 Smartcloser Auto-recloser
Up to 8 switches
Measure
Current, voltage and
power supply
Current, voltage, power and power supply
Fault detection
Overcurrent
Directional (ERDF configuration)
Overcurrent ANSI 50, 51
Overcurrent
Directional (ERDF configuration)
Protocols
IEC 60870-5-101
IEC 60870-5-104
Modbus RTU
DNP3
HNZ (ERDF specification)
Communication
Digital or analog radio
Dedicated Lines
GSM
GPRS
Public Switch Telephone Network (PSTN)
Ethernet
External RTU
In line with
international standards
Conforms to HN 64-S-44
specification
In line with
international standards
Conforms to HN 64-S-44
specification
Network Automation
Ensto products overview
Distributed
generation
Fault Passage Indicators
9
10
Operating Data Exchange System
DEIE
Type of network
Underground cable
Main features
DEIE box is a control unit which manages
the remote control and monitoring of decentralized generating facilities e.g.
wind turbines, power plants etc.
DEIE box allows information exchange and
commands between network manager and
independent producer.
It is connected to the control center (SCADA) via Public Switch Telephone Network
(PSTN) or GPRS.
Information is transmitted with
communication protocols:
• HNZ (ERDF specification)
• IEC 60870-5-104
Conform to HN 64-S-59 specification
11
Overcurrent
LYNX 2400
Directional
LYNX 3400
Type of network
Underground cable
Underground cable
Neutral system
Resistor linked to earth
Compensated with Peterson coil
Rated voltages of the network
15, 20 or 36 kV
50/60Hz
Power Supplies
Autonomous (supercapacitor or lithium batteries) or
supplied by a low voltage network with battery backup power.
Main features
LYNX 2400 accurately locates faults occurring on medium voltage networks with
resistive neutral.
LYNX 3400 accurately locates faults occurring on medium voltage networks with a
compensated neutral system.
LYNX 2400 includes a main box, an external LYNX 3400 includes a main box, an external
indicator light and 3 opening core sensors indicator light, 3 opening core current
sensors and 3 PPACS voltage sensors.
that are placed on the cables of the line
being monitored.
Conforms to HN 45-S-50 specification
Conform to HN 45-S-51 specification
MANAGEMENT
ELECTRICITY
QUALITY
CUSTOMER
MEASURE
LINES
DATA
GAIN
AUTOMATION
SERVICE
EFFICIENCY
PRODUCTION
SOLUTIONS
OPTIMIZATION
SAIDI
SWITCHES
DISTRIBUTION
OVERHEAD
ENERGY
VOLTAGE
CURRENT
SCADA
PERFORMANCE
NETWORK
MV
SAIFI
UNDERGROUND RELIABILITY
SATISFACTION
REACTIVITY
Solutions to optimize medium voltage distribution
Improve network infrastructure
• shorter sections
• redundant network
• reliable components
Improve network management
• by adding fault passage indicators (FPI)
• by adding automated switchgear equipped with
Intelligent Electronic Devices (IED) that provide
advanced protection, control, power quality
recording and measurement
• SCADA system integration
Network automation improves the quality and continuity of service
with affordable investments compared to non-optimized network.
Network automation means significantly less repair costs, less interruptions to power lines due to maintenance work and more reliable
electricity distribution.
UN46/ENG/11/2016
Ensto Novexia
210, rue Léon Jouhaux - BP 10446
FR - 69656 Villefranche-sur-Saône cedex
Tel: + 33 (0)4 74 65 61 61
Fax: + 33 (0)4 74 62 96 57
www.ensto.com