CG (Crompton Greaves) Alternators.

1. 1
Low Voltage Generator Product Range
LV Motor Division ,Ahmednagar India ,Industrial System

2. About CG
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3. CG- Industrial Product Offerings & Manufacturing Plants
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4. BV, IRS, ABS Retails
Market
Mini-Hydro
Projects
Mahindra
Powerall
RDSO Approved
Agro,
Compatible with
all 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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5. Global Distribution Network – LV Machines
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CG Sales Office
Distributors

6. Global Engine Compatibility

7. Aluminium Hosing ( 160 Frame 5kVA -32.5kVA)
Brushless Alternators for telecom
applications used for battery charging and
to cater BTS load for telecom towers.
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8. Aluminium Hosing ( 200 Frame 35kVA -90kVA)
Brushless Alternators for Air force used in
ground protection unit
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9. Aluminium Hosing ( 250 Frame 100 kVA -200kVA)
Brushless alternators for industrial applications as
standby power
Brushless alternators for refineries as standby power
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10. 315 to 400 Frame 200 kVA -90kVA)
Brushless alternators for Back up power uses in Banks,
Hospitals , Construction Site marine and industrial
applications
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11. 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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12. Slipring constructions (160 Frame 5 KVA - 82.5kVA)
Brushless and USTAD series Slipring
Alternators for agricultural market
Slipring alternators customers are using
with tractor mounted construction.
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13. Alternators for Minihydro applications
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Brushless alternators for Minihydro projects with dual
regulation. These can also used for emergency
applications like hospitals, IT, etc where DG Reliability is
crucial like operations in hospital & data for IT Sector
3 phase : 12.5 kVA-200 kVA

14. 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 with
dual regulation .
Standby arrangement in the event of one AVR
failure.
2.5 % regulation in both AVR mode
Better motor starting properties .
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event of failure of one AVR.

15. SAE combinations
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16. 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

17. 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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18. Mini
Hydro
Alternato
r
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 kVA
650 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
r
V. S. I. G.
Railway
Power
Car Alt
Marine
18
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

19. 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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20. 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 for
tropical environment.
Competitor : At par
Life long lubricated sealed bearings.
Competitor : At par
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21. Cooling : Side cooling instead of backside which improves Cooling of
alternator 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 input
facility
Competitor : 380 kVA and above . Analogue input on request .
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22. Terminations : Terminations with more creepage distance upto 200
Frame .
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 PMG
benefits with low cost
Competitor : PMG more overall legths and maintenance
Rotating field designs for slip ring alternators: Offers advantage of
miniature 2 slip rings for supplying DC excitation to filed winding with
minimum of brush wear.
Competitor : Not having slipring alternator range
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For more information please contact:
Richard Schembri
CG Industrial Systems
T: +44 1444 390841
M: +44 7535 335832
W: www.cgglobal.com
E: richard.schembri@cgglobal.com