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. |
|
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%. |
|
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. |
|
|
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. |
|
|
|
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. |
|
|
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. |
|
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. |
|
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 |
|
