iMCC

Intelligent Motorized Control Cabinet

Innovative control for disconnect switches

iCODControl

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Main Substation Components

TransformersThese devices step up or step down the incoming voltage of the substation. They are the most costly components of the transmission and distribution network.

Circuit BreakersThese devices protect the network from overloads. They also protect against lightning strikes. They are used to cut power to the network.

DisconnectsThese devices ensure a visible break in an electric circuit and isolate equipment within the substation for maintenance.

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What is iMCC?

Controls: Complete operation of the Disconnect

Monitors: All components of the Disconnect

Alarms: Warns of incipient faults

Mechanically conforms: Can be used with ALL disconnect designs

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Replaces conventional controllers with the Smart Grid in mindiCODControl

Control

Intelligent operation of Disconnects

Real time status of switch operation

Real time status of arm location during operation

Optimal contact pressure

Full motor control allowing variable speed to reduce arc time

Interphase synchronization

Multi-trial mode

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Monitor• Operation completion (Opening and

Closing)• Arm position via optical positioning system• Disconnect position failure• Motor voltage, current and torque• Temperature and Humidity measurements• SCADA connectivity

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Alarm Code Description Level0 No Error 01 Enclosure maximum temperature surpassed I2 Motor overvoltage I4 No rotation of positioning shaft, encoder detects no

movementI

5 No reading of the encoder. Encoder failure I6 Security switch activated, position limit attained I7 Local button failure (button activated for more than

60 sec)I

8 Motor activated for more than 3 minutes; motor stopped

II

9 Environmental sensor failure I12 Enclosure minimum temperature surpassed I13 Motor overcurrent II14 Encoder position out of range II17 Three trials performed in multi-trial mode I25 Other phase(s) failure - inter-phase locking(IPL)

signal activatedII

26 Mechanical link failure of disconnect II27 Blade of disconnect fallen outside of jaw I28 Main contact of disconnect jammed outside of jaw II29 Main contact of disconnect jammed inside jaw II30 Encoder failure II31 Positioning shaft failure II

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Alarms are recorded in a non-volatile memory and transmitted via the communication port or by the dry contact relays.

An LED will illuminate locally and the alarm code will be displayed on the iCOD panel if an alarm is present.

Alarm levels:Level I : Maintenance required in the medium termLevel II : Immediate maintenance is required the disconnect is not functional.

Mechanical

• Designed for 50 years operational use with little or no maintenance.

• Will work with any disconnect design.

• Over rated motor and gears for years of trouble free use.

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The optical positioning system has a precision of 1/5 of a degree, thus providing great flexibility for data analysis by function of the position.

The controller knows the position of the arm at all times.

It can detect a break or blockage of live parts or gears.

Cams are NOT used to determine arm position, a combination of torque and position is used to determine the actual position of the arm throughout entire operation.

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Operation and Diagnosis

Arm wedged in corona ring

Arm fallen outside of corona ring

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Elimination of Auxiliary Cam Switches

The optical positioning system, OPS, provides an accuracy in the DS arm position measurement that is impossible with traditional methods.

Positions are now assigned within the software.

Once the positions are established the configuration file can be copied to other iCODs operating DS of the same design.

Elimination of Auxiliary Cam Switches

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De-Icing

During icing conditions the disconnect will attempt three time to break the ice.

A built in delay allows time for the operator to get out of the way.

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Increased lifespan of disconnect switches and adjacent equipment due to reduced arcing time (50% or more)

Reduced harmonics injected into equipment and grid.

Arc Reduction

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DSV : Avantages of variable speed control

A strategic solution for control and monitoring

Reduction of harmonics by 50% or more per manoeuvres .

Reduction of exposure of harmonics to transformers . Reduction of exposure to arcs on contact fingers

therefore reduced pitting of contacts. Increased contact pressure on pantograph and semi

pantograph designs. Minimized motor stress due to fluid motor acceleration

and deceleration. An active system for the measurement and control of

motor current, cycle by cycle, for optimal motor protection. Motor will never burn out as current is constantly being measured thus preventing overcurrent conditions.

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DSV : Avantages of variable speed control

Direct link between arc time and energy dissipated

Reduced arc time, reduced harmonics dissipated.

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Maintenance Free Design

Solid state design, no moving cams or micro

switches. No degradation due to poor contacts from

oxidation. Elevated resistance to vibration. Motor current monitoring to increase motor life

and other components. Very low control operating current versus the

activation of a relay coil.

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Maintenance Free Design

Control panel membrane prevents dust and pollution from

affecting the contacts. Military grade robust, proven and isolated. Contact switch life more than one million operations.

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Maintenance Free Design

Front panel and terminals – zero maintenance.

Connections for SCADA easily accessible.

No Cams to become lose over time

Configuration file can be copied to other iCODs

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Optional Maintenance Free Design - Terminals

Vibration tests conducted IEC60068-2-6 at a frequency of 2000Hz with an acceleration of 20G. Specially designed for the railways.

Excellent contact over life of equipment tightening not

required. Used at many utilities including Hydro One and Hydro

Quebec.

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Testing conclusions by Hydro-Québec Reliability observed for the duration of

the tests. Decrease adverse effects caused by the

operation of the disconnect. Immunity to EMI / RFI

Testing in the laboratories of EHT 10 000 operations over a period of one

month 1000 maneuvers continuously Operations at high temperature Continuous operation at 70 ° C

Standards and Approvals

Testing Standard IEC 62271-102All specifications of the standard have been successfully completed;Compliant with purchasing and HQ SN62.1008 SN.19.3

All PCBs are treated with a conformal coating

Hydro Quebec Certification In Progress

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Tests with Hydro Quebec

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With an accuracy (0.1%) of the positioning system for the power contacts results in a significant reduction in losses through the bad positioning of primary contacts.

Environmental control system (control of heat and humidity) optimized with 20% to 30% energy saving.

Reduced Losses

Température (T)

Temps (t)

t0

Δt1

t1

T0

T1

ΔT3Consigne

T_initiale

Température (T)

Temps (t)

t0

Δt2

t1

T0

T1

ΔT4Consigne

T_initiale

Système de régulation avec thermostat au mercure sans dissipateur de chaleur

Système de régulation avec sondes électronique et dissipateur de chaleur

Software Interface

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Monitoring panel

Operation description Analysis panel

Operation graph

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Field Installation

Upgrading an existing Hydro Quebec cabinet with…..

iCODControl

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Real time monitor of the entire operation of the disconnect

No maintenance required – solid state design

Predictive maintenance tool

Multi-Trial mode

Ensures optimal contact pressure

Fully tested with Hydro Quebec

ICOD Intelligent Disconnect Controller

Thank You

EHT International

www.ehtinternational.com

+450-906-0705

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