PQIS SMART M.VIMPROVING THE POWER QUALITYIN MEDIUM VOLTAGE LEVEL

Many industrial facilities place poor power quality at the top of the list of factorsResponsible for efficiency loss, reduced productivity and lower quality of products.Optimizing your electrical system to keep up with ever­increasing energy demandsAnd rising costs becomes a challenge. However, technologies designed to lowerEnergy costs could cause unexpected power quality effects.

The PQIS SMART® M.V® medium voltage are ideally suited for centralizedApplications where plant load fluctuates resulting in the need for varyingAmounts of energy.A capital investment in PQIS SMART® M.V® active power quality solutionsEquipment can result in a healthy return of investment depending onThe utility�s demand rate structure, production quality cost due toHarmonics and voltage fluctuations in the distribution system.

How can PQIS SMART M.V be partof your energy efficiency program?

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Do you know a small saving isA big saving at the power plant?

Energy demand is anticipated to be doubleby 2030. CO2 emissions should be halvedto avoid global warming acceleration. Bothissues place a major challenge on thegenerating capacity of all utilities, and on usas electricity end users.

Energy efficiency becomes more than acost issue today. It becomes part of thejourney to ensure energy availability andpreserve the environment in the future.Many organizations put energy efficiency atthe top of their agenda as part of a greeninitiative and sustainable developmentstrategic plan. Increasing efficiency hassignificant impact on energy savings.

As you can see, we can make a big difference in conserving Energyby increasing efficiency in end user environmentsOur electrical distribution network and loads.

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Energy efficiency hasSignificant impact onEnergy savings.

Technologies designed to lower energy costs,Could cause unexpected power quality effects.We can provide a full range of power qualitySolutions to help you improve energy efficiencyWithout unwanted side effects.

PQIS SMART (Power Quality Improvment System)The complete solution.

Most utilities charge for peak electrical demand on each month�s electrical bill.The demand charge is to allow the utilities to recoup part of their capital investmentIn the distribution network they operate.Each customer pays a demand charge for its peak operating load.Often in herent in the structure of these demand charges is an allowance for someInefficiency but most utilities will offer an incentive to their customers to keepElectrical efficiency (measured by power factor) high.PQIS devices improve overall electrical efficiency upstream of their point ofConnection in the electrical network and can be used to minimize utilityKVA demand charges.

Power electronic devices that have rapid and frequent load variations have becomeAbundant today due to their many process control related and energy saving benefits.However, they also bring a few major drawbacks to electrical distribution systems suchAs harmonics and rapid change of reactive power requirements.

Harmonics may disrupt normal operation of other devices and increase operating costs.Symptoms of problematic harmonic levels include overheating of transformers, motorsAnd cables, thermal tripping of protective devices, logic faults of digital devicesAnd drives.Harmonics can cause vibrations and noise in electrical machines(motors, transformers, reactors).The life span of many devices can be reduced by elevated operating temperature

Plus, rapid reactive power changes demand timely reactive power (VAR) compensation.Lack of timely and adequate VAR compensation can lead to voltage fluctuations in theElectrical distribution system, impacting equipment operation, as well as product quality

Other benefits include:

. Improving power factor reduces kVAloading of the distribution network such that additional process equipment may be addedwithout the need for incremental investment in transformers and distribution equipment.

Standards limiting a customer�sHarmonic pollution of the utility grid exist and can be enforced by the utility.

. HarmonicsGenerated by non­linear loads can cause problems, such as logic faults of digital deviceswith sensitive process equipment leading to downtime and scrap.

of transformers, motors and cables to prolong the life span ofthese components.

Can result in a healthy return of investment depending on the utility�s demand rateStructure, production quality cost due to harmonics and voltage fluctuations in theDistribution system.

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Applications

Many industrial facilities place poor power quality at the top of the list of inefficiencyFactors responsible for losses due to reduced productivity and lower quality of products.Optimal electrical power utilization becomes a challenge, as well as a necessity toKeep up with everincreasing energy demand without drastic increases in energy costs.

Large industrial, commercial and institutional power users can benefit from centralizedMedium voltage Power Quality Improvment Systems.Medium voltage solutions typically require lower initial capital expendituresthan low voltage solutions while addressing most common power quality problems.Medium voltage metal­enclosed compensation systems provideCentralized solution approach with attractive installation options supporting the scaleAnd scopeof large electrical services.

Typical installations can be found at automotive, pulp/paper, steel, petrochemical,mining/mineral and other large industrial facilities. Many large commercial andinstitutional customers with medium voltage distribution network can also takeadvantage of medium voltage PQIS SMART

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Enhanced quality and sustained availability of electric powerAt an affordable cost is a major challenge today and into the future.Energy hungry industrial, commercial and institutional facilitiesPlace a majorchallenge on the generating capacity of all utilities.Cost of new power generating facilities and power deliveryTransmission systems, further constrained by environmentaland human factors, will force humankind to change energyconsumption habits and enforce energy conservation.Large industrial, commercial and institutional power users canBenefit from centralized medium voltage Active powerCompensation Systems.Medium voltage solutions typically require lower initial capitalExpenditures than low voltage solutions while addressingMost common power quality problems.Medium voltage PQIS systems provide a centralized solutionApproach with attractive installation options and support the scaleOf large electrical services. Large commercial customers supplied atHigher voltage levels than 480/600V can utilize and take advantage ofMedium voltage Active compensation systems.

PQIS SMART (Power Quality Improvment system) medium voltageAre designed for industrial, commercial,institutional and utility powerNetworksThe product offer wide range includes, single­three phase, or multi­phaseAssemblies to cover variety of objectives such as peak starting currentReduction,harmonic filtering, utility demand charge minimization, system capacityRelease and network loss reduction.Custom engineered designs with a variety of standard or custom options are available toSuit projectspecific application and installation requirements.

PQIS SMART®Medium Voltage

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Main FeaturesCustom­engineered, metal­enclosed,Multi­bay bolted lineupsSystems available up to 20MVA, 2.4kVThrough 15kV, 50/60Hz, 60/95kV BIL11 Gauge bolted frame to meet ANSISwitchgear standardIncoming section with integral FUJIHVL fused air switch or TOSHIBAVacuum breakerExternally­fused one­phase two­bushingOr three­phase three­bushing connectedIn either ungrounded Wye or DeltaFully rated three­ or four­poleGrounding switchesUnbalance protectionRelaying including system lock­outand alarm functionsElectrical solenoid time delay interlocksTo ensure five minute time beforeGround switch operation and enclosureAccess Kirk­Key interlock system for sequentialOperation of the control devices, mainDisconnect and ground switchesState1288MB microprocessorAll silver­flashed copper bussing and allCopper power and control wiringClear acrylic windows to inspect switchBlade position and blown fuse indication

Ntegral, externally operated SSR switch can be provided withOr without fuses for disconnecting and/visible isolation purpose.It can be used in PQIS system as a load­break switch for up to 2400KVAAt either 5kV or 15kV.When provided with fuses, the HVL also provides integrated short circuitProtection system.The switch disconnect is mechanically interlocked with grounding switchesAnd with the customer�s upstream device (if applicable).The vacuum circuit breaker can be provided as an option.Breakers aredraw­out type with full relaying protection.

Vacuum contactorsRated by system voltage and BIL requirements (7.2kV and below)Insulated barrier between high and low voltage partsLong electrical and mechanical life (over 250,000 operations)Contact status indicators are included

Bolted­frame, free­standing, multiple­bay lineups constructed from 11­gaugeFormed steel specifically engineered for rigidity.Enclosure is painted with corrosion resistant ANSI 70 polyester powder paint.Plus, doors and panels include viewing windows.Outdoor NEMA 3R enclosures feature bottom frame for additional protection.

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More than 15% reduction in energyCosts, increases profit margins

Gain Control and Save Energy

PQIS Selection Guide Steps

Each PQIS SMART M.V project starts with basic informationCollection With respect to facility and immediate utilityNetwork characteristics.Network nominal voltage, operating voltage, frequencyAnd short circuitAvailability are necessary for properSystem design.Information on power delivery transformer ratings(nominal kVA, impedance),Presence of any existing capacitor banks (type and ratings)In the facility or at the Utility feeder, and general networkTopology and operation are necessary.Most of the above information may be available fromSingle line diagrams

Required power calculations greatly depend on the purpose(objective) of the compensation system.Utility bills may provide total power requirements andInformation On the target power factor levels required.Better yet is to have actual load magnitude measurements(either total for the entire facility or for individual services)To quantify required power requirements.Special applications(i.e. motor starting compensation,Hhighly fluctuating cyclical load compensation)May require special data collection, which is not typicallyAvailable from general Power metering devices.

Evaluation of the load characteristics with respect to harmonic content(both voltage and current) becomes a main factor in proper deviceType specification. Presence of nonlinear (i.e. harmonic generating)Loads such as VFDs, DC drives, welders and/or furnaces internal toThe facility in question or in a neighboring facility, which is suppliedBy the same utility feed, may force special compensation systemDesign requirements to avoid resonance conditions and protect theCompensation system from harmonic overloads.Load harmonic content together with load variations based on facilityProcess and production are important to set required device type,Power sizes and define its operation parameters.

Specific site information such as installation location, site environmentalCnditions, required feeder and main protection options are required toFinalize the MV compensation system design.

Applying PQIS SMART to medium voltage distribution networks is not straight forward.Many application aspects need to be considered .It is highly recommended that you contact the CUSTOMER SERVICE forApplication assistance.The guide on this page show the steps and indicates what information is requiredTo properly and efficiently specify/recommend medium voltage PQIS systems.

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PQIS SMART M.V is trademark or registered trademarks of OBADA.CO and/or its affiliates in the Egyptand KSA /or other countries.Other marks used here in may be the property of their respective owners.

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