with Lomg experience in manufacturing alternator / ac
generator.
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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 |
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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. |
|
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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