The ultimate solution to reduce outage duration

Ensto Smartcloser Remain powered

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Ensto Smartcloser A quick return on investment, the profit are there

Ensto, a provider of electricity distribution solutions, expands its range of products dedicated to Network Automation.

Ensto Smartcloser is an automated pole mounted vacuum technology recloser. It reduces outage duration and automati-cally isolates a faulty section of distribution network.

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Highly reliableEnsto Smartcloser has a long life time, with a high level of electrical endurance. Environmen-tally friendly (without SF6), Ensto Smartcloser is operational on all continents subject to the most severe environmental and climatic con-ditions (saline humidity, rising sand, ice, snow, high altitude, industrial pollution, areas with high-density bird populations, etc.).

Lightweight and compact, Ensto Smartcloser is extremely reliable, with high-level safety characteristics allowing it to be used with full confidence.

Global SolutionEasy to install and easy to use, Ensto Smartcloser is part of a global offering :• Switchgear part + sensors • Control unit• Surge-arresters• MV/LV transformer • Disconnector with visible safe opening distance.

Quality ensured by testingEnsto Smartcloser is designed and manufactu-red according to an ISO 9001-certified quality assurance system. The equipment complies with the recommendations in the most recent editions of international standards and speci-fications.

Type testsEnsto Smartcloser have successfully passed all type tests specified in the international standards IEC 62271-1 and IEC 62271-111 (equivalent of IEEE C37.60).The corresponding test reports are available on request.

Routine testsEach product also undergoes individual tests during manufacturing as specified by the standards in force, namely :• Dielectric tests • Partial discharge tests• Voltage drop measurement• Manual and automatic operation tests

Ensto Smartcloser is an autorecloser installed on overhead distribution network. It detects and interrupts momentary faults. If the fault is permanent, it automatically isolates the faulty section of the network.

The use of reclosers prevents customers from suffering electrical outages. Each outage cor-responds to a cost for Electrical Utilities (e.g. loss of energy sales) but also for customers (e.g. loss of production for commercial and industrial). Indicators such as SAIDI and SAI-FI help to measure the reliability of Electrical Utilities.

Adding Ensto Smartclosers to the network is a simple and cost-effective solution to improve network reliability, decrease outage duration and thus save money.

Ensto Smartcloser is convenient for all types of networks, especially for those having fault current and requiring a high breaking capacity.Ensto Smartcloser is extremely reliab-le, with high-level safety characteristics allowing it to be used with full confidence.

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Ensto Smartcloser Pure Design, Pure Power

Transformer

Control Unit

CT & CD Sensor

Actuator

Vacuum Interrupter

Smart• Smart grids ready products / Smart Grid building block

• Smart current and voltage sensors pluggable on poles / easy model substitution

• Smart manual opening that automatically returns in initial position

• Easy-to-install, easy-to-use

Adaptable• Customized to meet different customer expectations on various markets globally

• Complete range of options (surge arresters, MV/LV transformer, etc.) for a global offering

• Switching unit can be piloted by different controllers (Ensto Novexia own or SEL controllers)

• Compatible with the SCADA remote control system

Reliable• Long life-time with high mechanical and electrical endurance

• Highly reliable vacuum interrupters and command by electromagnetic actuators

• Operation in extreme climatic conditions all over the world

• Suitable for all types of overhead distribution networks

Protective• Decrease of outages frequency and breaking duration

• Faster location of faulty sections and immediate information of the permanent nature of a fault

• Closing on a fault without damage repeatedly

• Integrated optional air break disconnector for extra personal operation safety

Sustainable• Environmental friendly (no SF6)

• Solid insulation with epoxy

• Vacuum breaking technology

• Cost-efficient with decreased losses

• Fits into the environment, harmonious, timeless design

Smart Reliable Protective Sustainable AdaptableSmart Reliable Protective Sustainable AdaptableSmart Reliable Protective Sustainable AdaptableSmart Reliable Protective Sustainable AdaptableSmart Reliable Protective Sustainable Adaptable

Ensto Smartcloser saves your energy

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Ensto Smartcloser Advanced technologies for Smart Grids

Vacuum Interrupter

• World class manufacturer of Vacuum Interrupters (VI)• Long electrical life and maintenance-free operation• Noise-free and flash-free as all arcing is confined inside the VI• Environmentally-friendly product

Pole unit

• VI premolded with silicone to enhance stability with epoxy• Molded with cycloaliphatic epoxy resin (good response to extreme weather conditions)• Flexible contact made of fine sheets of copper• Insulated drive rod

Electromagnetic actuator

• Controls the opening and closing of the VI• Snatch gap included - Ensures a constant and correct contact pressure of the VI regardless of the number of operations and contacts wear. - VI contacts are open brutally, which ensures a certain opening even if the contacts start welding.• Closing & opening process controlled by coil• Closed position maintained by a permanent magnet • Opening process done by spring - Mechanical process steady and reliable even in case of loss of power.

Indicator position

• Directly connected to the electromagnetic actuator• Provides a certain position of the VI contacts (green for open / red for close)

Manual tripping system

• Safety manual opening• Directly connected to the electromagnetic actuator• Can be operated without external power

Pole unit assembly

Active parts with breaking system, electromagnetic drive, manual tripping system, position indica-tor and adjustment system makes up the pole assembly.

• Totally independent• Sub-assembly designed as an ’all inclusive’ system • All parts assembled with a single reference

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Sensor part

• Molded in epoxy resin and silicone• Current and voltage sensors included• Plugged on the pole unit arm - It involved a real flexibility and the possibility to adapt the sensors to the need of the customer.

Fixation concept

• Designed as simple as possible• Beams sub-assembly very simple to assembly on the pole, with a standard wrench• Product placed on the beam with a hook system

Control box

• Material : Inox steel box• Index of protection : IP55 / IK 10• Dimensions : 775 x 362 x 280 mm• Weight with the battery : 30 kg• Battery : 12V 38A/h• Operating temperature : -25°C to +55°C (classical version) -50°C to +55°C (low temperature version)

• Protection : - Overcurrent Fault Detection - Standard Inverse Curves (conform to CEI Standards)• Measurement : From CT and CD sensors• Communication : RTC Modem, Numerical radio, GSM/GPRS, external RTU• Communication Protocols : DNP3, MODBUS, IEC 101, IEC 104• Control panel with several functions

• Reclosing Function : - Rated operating sequence : O – t1  – CO – t2 – CO – t3 – CO – t4 – CO – t5 – CO - Possibility to parameter times (from 200 ms to 14400s) and types of fault detection for each cycles (overcurrent and standard inverse curve)

• Overcurrent fault detection : - Phases 10A to 1260A for a time of 30ms to 990ms Accuracy ±1% and ±2A for the lower threshold

- Earth 4A to 80A for a time of 30ms to 990ms Accuracy ±1% and ±0,5A for the lower threshold

• Options : - Data logger card for advanced measurement functions - Special cabinet for very low temperatures - etc...

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Put theory into practice with Ensto Smartcloser !

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Pole Unit

Sensor

Hook fixation

Tank

Manual opening

system

Position indicator

Vacuum InterruptersSolid Insulation

Electromagnetic ActuatorsRemovable sensors

Ensto Smartcloser A unique design thought for the user-friendliness

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Nema connection

Epoxy resin

Vacuum interrupter

Flexible transfer contact

Deflector box

Sensor (CT & CD)

Silicon shed

Insulated drive rod

Adjustable connection

Electromagnetic actuator

Position indicator

Pole Unit Analysis

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Ensto Smartcloser Technical Characteristics

UNIT Smartcloser

Electrical Characteristics

Rated voltage kV 38

Rated current A 630

Rated frequency Hz 50

Rated Short time withstand current (1 sec) kA 12.5

Rated Making current (RMS) kA 12.5

Rated symmetrical Interrupting current kA 12.5

Rated lightning impulse withstand voltage kV 170

Rated power frequency withstand voltage (dry) kV 70

Switchingperformance

Mechanical life (operating cycles) C/O 10 000

Rated operating sequence sec O-0,1s-CO-1s-CO-1s-CO

Detection phase-phase A [ 10 ; 1260 ]

Detection phase-earth A [ 4 ; 80 ]

Current sensors & Capacitive Dividers 1 per phase

Ambient Temperature °C [ -40; +55]

Humidity % at °C 100% at 25°C (max)

Climatical data Operation under ice mm 20

Degree of protection IP 65

Weight kg 138

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Upstream Surge-arrester

Smartcloser

Downstream Surge-arrester

Transformer

+ Control Box + Equipotential platform + Cables

Easy to install and easy to use, the Smartcloser is part of a global offering

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110

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815

121

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390 390 138

306 385

115

312

289

581

1056

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12

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4

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3

1

2

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4 Upstream Surge-arresters

Smartcloser

Downstream Surge-arresters

MV / LV Transformer

5 Control Box

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Ensto Novexia SAS210, rue Léon Jouhaux - BP 10446FR - 69656 Villefranche-sur-Saône cedexTél. : 33 (0)4 74 65 61 61Fax : 33 (0)4 74 62 96 57E mail : infos.novexia@ensto.comwww.ensto.fr

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