Descrizione
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Frequency
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4 Pole alternators may operate either 50 or 60 Hz. The standard winding (B31,B32) is suitable both for 50 and 60Hz. |
| Forms | 4 Pole alternator can be provided in single bearing or double bearing configurations according to customer Requisiti. |
| Fattore di potenza | 4 Pole alternator are designed to operate between 0.8 E 1 power factor. |
| Overspeed | The maximum overspeed is 2250rpm (1.25 times the 60Hz rated speed). |
| Enclosure | Standard enclosure is IP23. |
| Insulation and protection | 4 Pole alternator are class H insulated. |
| Mechanical structure | Steel frame. Aluminium, cast iron or steel housings and flanges depending on models. |
| Categoria | TWGII series Brushless Alternators – Stamford type | |||||||||
| Frame size (mm) | TWGII164-TWGII454 | |||||||||
| Kw | From 10 kW – up to 2000kW | |||||||||
| Rated Voltage | 220V, 380V, 400V, 415V, 440V | |||||||||
| Rated Frequency | 50Hz/60 Hz | |||||||||
| Protection Class and Insulation Class |
IP21, IP23, Class H | |||||||||
| Poli | 2 – 4 | |||||||||
| Cooling air temperature | 258-313K(-15ºC-40ºC) | |||||||||
| Main Performance Index | ♦Three phase four threads ♦Adjusting rate of stable voltage ≤ ±1% ♦Transient state voltage ≤ -15% ~ +20% ♦Wave aberration rate of voltage THD ≤2% ♦Telephone harmony wave factor of telephone THF ≤2% ♦Telephone effective factor of telephone TIF ≤2% |
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| Caratteristiche | ♦Reliable AVR exciting system and optional permanent magnetic system always provide invariable excitation on all occasions. ♦Easy to be connected with power network of parallel other generators. ♦Balanced rotor, sealed single and double ball bearings. ♦Convenient installation and easy maintenance, easy access to terminal. rotating rectifier| and coupling bolts. ♦Wide range of flange adapter and coupling disc for single bearing. ♦In conformity with all mainland standard. |
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| Option Feature | ♦Adapters and interchangeable drive disk ♦Monofase ♦Remote voltage adjust ♦IP23 protection class ♦Space heaters ♦Thermistors |
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| Fields Applications | To be equipped on diesel generator set, Continous or Standby power supplying. | |||||||||
KAIGONG ELECTRIC (SUZHOU) CO.,LTD is located in Shishan Road, New District, Suzhou. Our base factory is located in Fuzhou City, Fujian Province, it has around 30000 square meters We always adhere to the policy of high standard, high quality and high efficiency and devoted ourselves to the research and sales of the generators, machine tools and their spare parts.
lt is a creative technology company comprising the manufacture, sales and research of electric motors and generators.
We have 2 brevetti di invenzione nazionale. Our products in “KAIJIELI” brand a re exported to more than 50 countries and districts in Europe, Sud America, Middle East, South Asia, Southeast Asiaetc.
We have steady sales channels and more than 50 agencies both at home and abroad. lt is the leading company in the industry and the total annual sales is Keeping growing.
We adhere to the spirit of pragmatism, creation and pioneering, adhere to the operation philosophy of supplying high quality products to the customers and attach great importance to the talent introduction and advanced equipment. We have strong technical force, rigorous and efficient
technology research team.
The ordinary motors of CDF series, high efficiency motors of KE series and ultrahigh efficiency motors of KE3 series are in accordance with the latest EU standards and take the leading position in the market. The manufacture and sales of the ST STC series generators with brush ranked the first steadily in domestic market for many years. TWGII series brushless generators became the new generation generators which set the trend thanks to several patented technology of our independent research.
KAIJIELI takes “Creating the best in China” as the direction, “Satisfying the customers” as the stuff duty, “Beating the competitors” as the glory and “Getting win-win situation” as the ultimate goal.
We have built strategic cooperation relationship with domestic and overseas well-known enterprises and sincerely hope to cooperate with more new customers.
Electromagnetic design
Air gap between the stator and rotor core is smaller, therefore, our TWGII series generators have higher efficiency, compared with the products from other factories.
Excitation system
Excitation stator lamination is made by cold-rolled silicon steel sheet,with one or two high performance magnets, so the temperature rising of exciter is low, it will not lose excitation. Excitation start faster, easy to build pressure.Normally , when speed reach 600-700 rpm/min ,it is able to built pressure.
Mechanical Design
The biggest improvement is that, between driven disk and shaft,we adopts interference fit ,instead of key connection. Our advantage is that the process is more simple, the size is more precise,connection is more reliable.
Technical Performance
1)Adjusting rate of stable voltage ±0.5%
2)Adjusting rate of instant voltage: ≥-15% ~ ≤+20%
3)Adjusting range of voltage: ≥±25%
4)Standard H insulation class.
All wound components are impregnated with materials and processes disigned specifically to provide the high build required for static windings and the high mechanical strength required for rotating components.
5)Simple installation and maintenance with easy access to terminals, rotating diodes and coupling bolts.
6)Protection class: IP21-23(NEMA1) enclose is standard for all industrial alternators;
Process
1. Stamping of lamination;
2. Rotor die-casting;
3. Winding and inserting – both manual and semi-automatically;
4. Vacuum varnishing;
5. Machining shaft, housing, end shields, eccetera;
6. Rotor balancing;
7. Pittura – both wet paint and powder coating;
8. Assembly;
9. Imballaggio;
10. Inspecting spare parts every processing;
11. 100% test after each process and final test before packing.
RAQ
Tempi di consegna:Within 30 days working day since we receive the deposit.
MQO: 1 set is acceptable.
Termine di pagamento: 30% T.T deposite,70%TT balance before shipment; or L/C 100% At Sight.
Packed: Standard export package(Wrapping film and bubble pad or plywood case).
Frequency and voltage: 50HZ/60HZ; 110V / 220V,230V/ 400V, 220V/380V-440V ect.
Manufacturing standard: ISO9001:2008, CE, CCC, TÜV, GS.