CG (Crompton Greaves) Alternators

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Low Voltage Generator Product Range

LV Motor Division ,Ahmednagar India ,Industrial System

About CG

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CG- Industrial Product Offerings & Manufacturing Plants

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BV, IRS, ABS Retails Market

Mini-Hydro Projects

MahindraPowerall

RDSO Approved

Agro, Compatible withall Tractor makes

Alternators - Product Range, Applications & Approvals

Brushless Alternator - 4 Pole 5 kVA to 1010 kVA

Brushless Alternator 2 Pole –

5 to 25 kVA

Mini-hydro & Emergency

application –5 to 200 kVA

VSIG – Alternator

7.5 & 10 kW

Railway Power

car Alternator –

500 & 650 kVA

Slipring Alternator“USTAD”

5 kVA to 82.5 kVA

Product Range For Low Voltage Generator

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Projects Powerallall Tractor makes

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Global Distribution Network – LV Machines

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CG Sales Office

Distributors

Global Engine Compatibility

Aluminium Hosing ( 160 Frame 5kVA -32.5kVA)

� Brushless Alternators for telecomapplications used for battery charging andto cater BTS load for telecom towers.

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Aluminium Hosing ( 200 Frame 35kVA -90kVA)

� Brushless Alternators for Air force used inground protection unit

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Aluminium Hosing ( 250 Frame 100 kVA -200kVA)

� Brushless alternators for industrial applications asstandby power

� Brushless alternators for refineries as standby power

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315 to 400 Frame 200 kVA -90kVA)

� Brushless alternators for Back up power uses in Banks,Hospitals , Construction Site marine and industrialapplications

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Solutions for Railways

� 500KVA,750V,with and 670 kVA: Dual regulation mode and auto changeover :

� Brushless alternators suitable for providing power

to AC coaches of trains with dual regulation.

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Slipring constructions (160 Frame 5 KVA - 82.5kVA)

� Brushless and USTAD series SlipringAlternators for agricultural market

� Slipring alternators customers are usingwith tractor mounted construction.

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Alternators for Minihydro applications

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� Brushless alternators for Minihydro projects with dualregulation. These can also used for emergencyapplications like hospitals, IT, etc where DG Reliability iscrucial like operations in hospital & data for IT Sector

3 phase : 12.5 kVA-200 kVA

Alternators for hydro applications

•High Motor starting capability due to

compound excitation system.

Automatic changeover with Compact

and accurate overvoltage relay in the

event of failure of one AVR.

� Brushless alternators for minihydro projects withdual regulation .

� Standby arrangement in the event of one AVRfailure.

� 2.5 % regulation in both AVR mode

� Better motor starting properties .

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event of failure of one AVR.

SAE combinations

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MOSFET BASED AVR.

MODEL UVR-7 SMR

Type Thyrister MOSFET

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Type Thyrister MOSFET

kVA 180-650 kVA 650kVA and Above

SENSING

REGULATION ± 1 %. ± 0.5 %.

UNDER SPEED PROTECTION YES

SENSE LOSS PROTECTION YES

OVER EXCITATION PROTECTION YES

DISTANCE VOLTAGE HAND TRIMMER YES

DROOP SETTING FOR PARALLEL OPERATION YES

ANALAUGE INPUT FACILITY YES

INDICATOR LIGHTS

UFRO,SENSELOSS,

OVERECITATION

Feature AC generator with PMG Alternators with ( SPL aux. and MOSFET AVR)

Short circuit maintenance 3 times for 3 sec 3 times for 3 sec

Motor starting ~ 50 % of the kVA rating of alternator ~ 40-50 % of the kVA rating of alternator

Nonlinear Load ~ 70-75 % ~ 70-75 %

Salient Feature of CG Alternator

Resudual magnetism Positive build up Positive build up ensured with spl grade exciter and AVR

Length Overall length increase by ~300 to 400mm No length increase

Cost High initial cost ( ~ Rs 30000-40000 extra ) Low cost ( Rs:8000 extra)

Maintenance Additional Maintenance for PMG No additional maintenance

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Mini Hydro

Alternator

Product portfolio (Alternators) CG Vs Competition

110kV 220kV 800kV >1,000kV

5 to 1010 kVA

5 to 30 kVA 5 to 82.5 kVA

500 kVA650 kVA

12.5 kVA to 200 kVA

6.5 kW to 10 kW

5 to 900 kVA

7.5 to 2750 kVA

12.5 to 53 kVA

UP to 50 kW

7.5 to 2500 kVA

Brushless 4 Pole

Brushless 2 Pole

Slip ring Alternato

rV. S. I. G.

Railway Power

Car AltMarine

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kVA kVA

5 to 2250 kVA

3.5 to 63 kVA

6.5 kW to 10 kW

5 to 2000 kVA

5 to 650 kVA

5 kVA to 20 kVA

500 kVA 5 to 500 kVA

SALIENT FEATURES OF CGL ALTERNATOR

� Al. alloy gravity die cast stator body ( Up to 200 kVA) - Pleasing look &light in weight.

Competitor: Sheet metal or MS

� Lower Overall Lengths – More preferred for Acoustic enclosures.

Competitor: At par or small upto small extent due to inboard diode assembly

� Efficiencies - Better/ at par with competitors.

Competitor : At Par and Better in 1 phase EFF1 RangeCompetitor : At Par and Better in 1 phase EFF1 Range

� Spacious Terminal box with provision of double side entry – Flexibility &Ease of Al. customer cables termination inside the box.

Competitor : Double side entry

� Out-board Diode board assembly)- Ease of service.

Competitor :inboard in case ( Difficulties in service)

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� 2/3 rd pitch windings : Offers better suitability for Non-linear loads.

Competitor : At par

� Spl. Auxiliary winding as standard : Offers higher motor starting & Non-linear load withstand capability.

Competitor : Not having separate winding for AVR

SALIENT FEATURES OF CGL ALTERNATOR

� Epoxy gel treatment on Winding overhangs : Offers better suitability fortropical environment.

Competitor : At par

� Life long lubricated sealed bearings.

Competitor : At par

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� Cooling : Side cooling instead of backside which improves Cooling ofalternator in Canopy

Competitor : Backside cooling so requires some space from backside

� Parallel Operation Facilities:

SALIENT FEATURES OF CGL ALTERNATOR

� Parallel Operation Facilities:

45 kVA-160kVA : 5A input facility of QDC CT ( Without factory fitted CT)

180-1010 kVA : Factory fitted QDC CT and +/-5 V analogue inputfacility

� Competitor : 380 kVA and above . Analogue input on request .

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� Terminations : Terminations with more creepage distance upto 200Frame .

250 Frame double Decker arrangement for ease in cable termination

315 Frame : Terminal board with more creepage distance.

355-400 Frame : L-shaped terminations for ease in cable terminations.

Competitor : At par

SALIENT FEATURES OF CGL ALTERNATOR

� Alternator for PMG performance : These alternator give all PMGbenefits with low cost

Competitor : PMG more overall legths and maintenance

� Rotating field designs for slip ring alternators: Offers advantage ofminiature 2 slip rings for supplying DC excitation to filed winding withminimum of brush wear.

Competitor : Not having slipring alternator range

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For more information please contact: Richard SchembriCG Industrial SystemsT:  +44 1444 390841 M: +44 7535 335832 W: www.cgglobal.comE: richard.schembri@cgglobal.com