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Quick Details

  • Place of Origin: Guangdong, China (Mainland)
  • Brand Name: Westinpower
  • Model Number: TP550
  • Output Type: AC Three Phase
  • Speed: 1500/1800
  • Frequency: 50/60
  • Rated Power: 500KVA/400KW
  • Rated Voltage: 400/230V
  • Rated Current: 794
  • Cooling Method: Water-cooled
  • Product Warranty: One Year/1000 Hours
  • Product Comply Standard: ISO8528, EPA
  • Factory Comply Standard: ISO9001, ISO14001
  • Certificate: CE, EPA, SGS
  • Optional: Silent Type with canopy,ATS,Deep Sea Controller

Packaging & Delivery

Packaging Details Packing: Packaged with shrunk plastic film.
Delivery Time 30 days



About us

WESTIN POWER is a leading manufacturer of Diesel Generator Sets with over 10 years’ experience. We have established long-term OEM partnership with P, C, M, S, L, etc. Covering a power range from 7 to 2400 kW with ISO, CSC, CE and EPA certified.


We supply over 70 countries. We will be pleasure to assist you with business development in your market.


Why Choose Us:


Do not hesitate to contact us!


Product Description

 Product Description:

1. Inbuilt-muffler,compact arrangement and well performance;
2. With high anti-corrosion function,the hinge meterial is duralumin which has been dealt with positive;the bolts and screws are both coped with anti-rust treatment;
3. strechable sealed edges;
4. The design enables maintainence much more comfortable
5. P engine coupled with S/L/F/C alternator
6. Low fuel consumption and noise
7. Emission meets the German TALuft standard
8. ATS Diesel Generator Set
9. CE Certificate
10. ISO9001:2008
11. OEM Service Offered


Technical Data

Genset Model


Prime Power


Standby Power


Rated Voltage





50°C max with coolant cap

Charge Alternator


Dimension(L*W*H) (mm)


Net Weight (kg)


Diesel Engine


with UK P engine



Governor Type


Rotating Speed

1500 rpm

Engine Cooling Method





137 ×171






Power Factor(COS Phi)


Excite Type

Brushless SHUNT

Connecting Type

3 Phase & 4 Wires

Insulation Degree


Enclosure Degree


The components of the genset : 1.Diesel Engine 2.Alternator 3.Control Panel


Our Services




1. Standard radiator for the ambient temperature of 50 celsius degrees.

2. Common steel frame

3. Circuit breaker

4. Damper

5. Exhaust silencer

6. Flexible pipe

7. Battery

8. Connecting wire

9. Standard tool kit

10. Operation manual and document





1. Westinpower Green (New)

2. CAT Yellow

3. Bright Yellow (UAE Yellow)

4. SDMO Blue

5. Wilson Blue (286C)

6. Wilson White (68098)

7. Milky White

8. Ivory White

9. Cummins Green

10. Westinpower Green (Old)



1.ISO9001 Certification of Management System
2.ISO14001 Certification of Environmental Management System
3.QC Management System



Packaging & Shipping

Packaging: covered by shunk film

The separated parts for packing
1. Genset body
2. ATS
3. Project materials
4. Fuel tank
5. Maintenance tools, three common filters, etc
6. User's guide and manual.


Port of loading:  Shantou

Delivery time:  30 days




FAQ (Service)

1. What is your warranty period?

Our warranty period is 1 year or 1000 running hours whichever comes first. But when it comes to some special projects, our warranty period
can be extended.

2. Does your generator have global warranty?

Yes, most of our products like C, P, D power generator enjoy the global warranty service. And the alternators we use like
L, S, M also enjoy the global warranty service, so you do not need to worry about the aftersales service.

3. Can you accept OEM?

Yes, OEM is acceptable.

4. What are your payment terms?

Payment terms below are acceptable:
T/T 30% in advance, balanced before shipment
L/C at sight
Deferred Payment L/C
Western Union

5. What is your delivery time?

Our normal delivery time is 30 days. But if the order with special engine or alternator, the delivery time would be longer.




What is the difference between kW and kVa?


The primary difference between kW (kilowatt) and kVA (kilovolt-ampere) is the power factor. kW is the unit of real power and kVA is a unit of apparent power (or real power plus re-active power). The power factor, unless it is defined and known, is therefore an approximate value (typically 0.8), and the kVA value will always be higher than the value for kW. 


In relation to industrial and commercial generators, kW is most commonly used when referring to generators in the United States, and a few other countries that use 60 Hz, while the majority of the rest of the world typically uses kVa as the primary value when referencing generator sets.


To expand on it a bit more, the kW rating is essentially the resulting power output a generator can supply based on the horsepower of an engine. kW is figured by the horsepower rating of the engine times .746. For example if you have a 500 horsepower engine it has a kW rating of 373. The kilovolt-amperes (kVa) are the generator end capacity. Generator sets are usually shown with both ratings. To determine the kW and kVa ratio the formula below is used.
.8 (pf) x 625 (kVa) = 500 kW



What is a power factor?


The power factor (pf) is typically defined as the ratio between kilowatts (kW) and kilovolt amps (kVa) that is drawn from an electrical load, as was discussed in the question above in more detail. It is determined by the generators connected load. The pf on the nameplate of a generator relates the kVa to the kW rating (see formula above). Generators with higher power factors more efficiently transfer energy to the connected load, while generators with a lower power factor are not as efficient and result in increased power costs. The standard power factor for a three phase generator is .8. 



What is the difference between standby, continuous, and prime power ratings?


Standby power generators are most often used in emergency situations, such as during a power outage. It is ideal for applications that have another reliable continuous power source like utility power. It’s recommend usage is most often only for the duration of a power outage and regular testing and maintenance.


Prime power ratings can be defined as having an “unlimited run time”, or essentially a generator that will be used as a primary power source and not just for standby or backup power. A prime power rated generator can supply power in a situation where there is no utility source, as is often the case in industrial applications like mining or oil & gas operations located in remote areas where the grid is not accessible. 


Continuous power is similar to prime power but has a base load rating. It can supply power continuously to a constant load, but does not have the ability to handle overload conditions or work as well with variable loads. The main difference between a prime and continuous rating is that prime power gensets are set to have maximum power available at a variable load for an unlimited number of hours, and they generally include a 10% or so overload capability for short durations.



If I am interested in a generator that is not the voltage I need, can the voltage be changed?


Generator ends are designed to be either reconnectable or non-reconnectable. If a generator is listed as reconnectable the voltage can be changed, consequently if it is non-reconnectable the voltage is not changeable. 12-lead reconnectable generator ends can be changed between three and single phase voltages; however, keep in mind that a voltage change from three phase to single phase will decrease the power out put of the machine. 10 lead reconnectable can converted to three phase voltages but not single phase. For more information, here’s a useful pdf file from the U.S. Army Corps of Engineers.



What is ATS automatically converted cabinet? What is the function?


Automatic Transfer Switches guarantee reliable, seamless power when outages occur. They automatically transfer power to the genset when utility power fails, providing the highest protection for continuous power.


ATS specifications are:
Generator set ATS cabinet specifications generally: 125A 160A 250A 400A 630A 800A 1000A 1250A 1600A 2000A 2500A 3200A 4000A and so on.


How to determine the ATS cabinet specifications?


In accordance with the maximum output current of generator sets decision, generally in accordance with generators Standby Power (KW) is multiplied by two to estimate. Example: a spare 310KW generators and cabinet specifications are: 310 × 2 = 620A, 620A no specifications, so we chose the ATS 630A cabinet.



Can a generator I am looking at parallel with one I already own?


Generator sets can be paralleled for either redundancy or capacity requirements. Paralleling generators allows you to electrically join them to combine their power output. Paralleling identical generators will not be problematic but some extensive thought should go into the overall design based on the primary purpose of your system. If you are trying to parallel unlike generators the design and installation can be more complex and you must keep in mind the affects of engine configuration, generator design, and regulator design, just to name a few. For more information and details on paralleling standby generators in critical systems take a look at this informative article.



Can you convert a 60 Hz generator to 50 Hz?


In general, most commercial generators can be converted from 60 Hz to 50 Hz. The general rule of thumb is 60 Hz machines run at 1800 Rpm and 50 Hz generators run at 1500 Rpm. With most generators changing the frequency will only require turning down the rpm’s of the engine. In some cases, parts may have to be replaced or further modifications made. Larger machines or machines already set at low Rpm are different and should always be evaluated on a case by case basis. We prefer to have our experienced technicians look at each generator in detail in order to determine the feasibility and what all will be required.



How do I determine what size Generator I need?


Getting a generator that can handle all your power generation needs is one of the most critical aspects of the purchasing decision. Whether you are interested in prime or standby power, if your new generator can't meet your specific requirements then it simply won't be doing anyone any good because it can put undue stress on the unit and even damage some of the devices connected to it. Determining exactly what size of generator to get is often very difficult and involves a number of factors and considerations. To get more detailed information on this subject, please visit our expanded article on Sizing a Generator.





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