TECHNICAL CAPABILITIES OF “AB’ SERIES AC GENERATORS

Kirloskar   Electric   have   long      experience in the manufacture of brushless AC Generators along with AC and DC motors. They are known for their technology and reliability.

Kirloskar Electric have most advance d designs, modern production and test facilities.

Kirloskar Electric is accredited with Quality Standards ISO 9001 for its quality management system for the manufacture  of  these AC Generators.

These products have KEMA attestation for having met the requirements of Low Voltage directive as well as EMC directive and entitled to provide the ”CE’ marking for the generators.

Kirloskar Electric have the comprehensive range from 5 to 6250 kVA,  single  bearing, AC Generators to cater to the needs of commercial, industrial, telecommunications, defense and marine applications.

Kirloskar AC Generators are available for 50/60 Hz and cater to all applications for the prime and stand by power generations.

SPECIAL FEATURES

• Compact and  aesthetically
• Conforms to all leading industrial and marine standards.
• Simple design, fewer parts, easy access to coupling bolts,

output terminals and rotating diodes.

• Simple for installation and maintenance.
• Wide range of flange adaptors and single bearing flexi-disc couplings.
• Wound with Z/3 pitch in stator to eliminate
• Sophisticated and reliable AVR, having good capability to handle non linear
• Self lubricating, sealed type for ball
• Parallel operation facility is optional in frame 4AB200 & 4AB225.

Kirloskar AC Generators meet the requirements of the following standards.

I EC 60034.-1

Rotating Electrical Machine Ratings and Performance.

BS EN 60034

Rotating Electrical Machines.

IS:13364 – PART-I

AC GENERATOR ratio rds. Driven by reciprocating internal combustion engines.(Rated up to 20 kVA)

IS:13364 – PART-II

AC GENERATOR ratio rs driven by reciprocating internal combustion engines. (Rated above 1250 kVA)

IS 4722

Indian Standard for Rotating  Electrical Machines.

RATINGS

Standard ratings are offered for 380-415 V, 50 Hz & 220-480 V, . 60

H z , f o r 4 0 ° C a m b i e n t , 1000m altitude, class H/F temperature rise.

CONSTRUCTIONAL FEATURES

MECHANICAL

Basic stator frame is of  ‘fabricated, steel cage construction the  a wrap around. This construction is rigid and houses wound stator core with interference fit. This provides further mechanical stability for the machine. Rotors are dynamically balanced to better grade than 2.5 of ISO 1940.

ELECTRICAL

Stator are wound with 2/3 pitch. This eliminates the triple harmonics on the voltage waveform and enhances the performance with non-linear loads. Rotors are ofcruci- form construction and are provided with large size damper cage which reduces r‹›tor oscillation and make generators suitable for paralleling. Apart from above design feature, correct design of pole and tooth ensures” very low distortion in the waveform.

Generators are provided with amply sized terminal box, mounted on top of the frame, for the termination of 12 leads from the generators as well as the customer wiring and glands. This boy also houses the automatic voltage regulator (AVR ). This box is easily accessible to the user.

.ENCLOSURE

All industrial generators are provided with IP 23 protection as standard.

ADAPTOR & COUPLINGS

For single bearing generators, depending on the kVA ratings sizes and combinations of adaptor for SAE 2 & 3 and flexi-disc coupling to SAE 10.0 & 11.5 are available.

AUTOMATIC VOLTAGE

REGULATOR

Automatic Voltage Regulators (AVR) are quite sophisticated, compact and rugged. These AVRs empty efficient semi- conductors. These are suitable for 50 / 60 Hz application as well as for solo and parallel running modes. These AVRs provide a regulation of e1%. (Also z0.5% regulation available on request).

They have very good ability to pickup from low residual voltage._ Also can easily sustain a variety of non-linear loads with the use of complex internal filtering.

TELEPHONE HARMONIC DISTORTION AND RADIO INTERFERENCE

Telephone Interference, THF is as per BS ” 4999 Part 40. ” Kirloskar brushless AC generators with , sophisticated AVRs ensure low levels of interference with radio transmission