with Lomg experience in manufacturing alternator / ac
generator.
Alternator
Power Ranging 6.5 *****0KW |
for prime or
standby use, more than *0 different models, with *0Hz or *0Hz
frequency, Single bearing or Double bearing, Brush or brushless,
Self-excited. Abounds with almost every model in stock. |
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Excitation System |
Leadtech
alternaotr with self-excited system by means of brushless or brush
and synchronous features. Voltage regulation can be controlled with
±0.5%. |
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Frequency And Voltage |
*0Hz or *0Hz as
per customer’s request. Voltage from **0 ~ **0V, **0V~**5V,
**0~**0V, serial star, parralle star and serial delta connection
are available, All three-phase generators are **-lead
reconnectable, providing voltage and phase flexibility. |
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Insulation and Protection |
Insulation: H,
Protection: IP*2 |
The components
such as rotor and exciter are specially impregnated with tropical
grade insulating oil and acid resisting polyest resin. Providing
the high build required for static winging and the high mechanical
strength required for rotating components. |
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IP*3 is for
optional but the rated power will decrease 5%. |
Voltage Regulators |
With this
self-excited system the main stator provides power via the
Automatic Voltage Regulator (AVR) to the exciter stator. The high
efficiency semi-conductors of the AVR ensure positive build-up from
initial low levels of residual voltage. The exciter rotor output is
fed to the main rotor through a three-phase full-wave bridge
rectifier. The rectifier is protected by a surge suppressor against
surges caused, for example, by short circuit or out-of-phase
paralleling. |
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The model we use
including: MX**1, MX**1, AS**0, SX**0, SX**0, etc. |
Winding |
All generator
stators are wound to 2/3 pitch. This eliminates triplen (3rd, 9th,
*5th …) harmonics on the voltage waveform and is found to be the
optimum design for trouble-free supply of non-linear loads. The 2/3
pitch design avoids excessive neutral currents sometimes seen with
higher winding pitches, when in parallel with the mains. A fully
connected damper winding reduces oscillations during paralleling.
This winding, with the 2/3 pitch and carefully selected pole and
tooth designs, ensures very low waveform distortion. |
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Terminsal and Terminal Box |
Standard
generators are *-phase reconnectable with *2 ends brought out to
the terminals, which are mounted on a cover at the non-drive end of
the generator. A sheet steel terminal box contains the AVR and
provides ample space for the customers' wiring and gland
arrangements. It has removable panels for easy access. |
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Shaft and Keys |
All generator
rotors are dynamically balanced to better than BS***1:Part 1 Grade
2.5 for minimum vibration in operation. Two bearing generators are
balanced with a half key. |
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Heavy Duty Bearing |
Single bearing or
Double bearing available. Heavy duty bearings are double shielded
and pre-lubricated for the life of the bearing. This helps resist
contamination and ensures a maximum bearing life. |
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Phone interference |
THF(defined by
*0th part of BS***9) <2%.TIF(defined by
ASAC*0.*2)<*0 |
Radio interference |
Brushless
apparatus and quality AVR ensure little radio interference in
transmission. RFI noise filter is also available. |
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Warranty |
One year or ***0
operation hours, whichever comes first. |
Manufacturing Standards |
GB**5, BS ***0,VDE
***0, NEMA MG***2,IEC*4,CSA C*2.****0 and ASB*9 |
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