Suntan Tell You Round and Oval Motor Run Capacitors

November 19, 2015 Views
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Suntan Technology Company Limited
---All Kinds of Capacitors

Some customer would be confused by can I use a round run capacitor in place of an oval run capacitor? The answer is positive.

The only difference between round and oval capacitors is the case. There is no electrical difference. 

As long as the replacement will fit within the space provided, the case shape is irrelevant.

In Suntan website we only show round motor running capacitors for CBB60 series from TS11-22 to TS11-26. 

But in our production line, we are able to produce oval motor running capacitors, please send us your enquiry once you need them.
 
For more details please check :http://www.suntan.com.hk/Motor-Capacitors/
 

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Suntan Telles You How Long Your Run Capacitor Last

November 17, 2015 Views
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Suntan Technology Company Limited

---All Kinds of Capacitors

The mid point for a good quality aftermarket (didn't come with your motor) run capacitor would be 3,000 to 30,000 running hours.
Suntan usually produce motor running capacitors with 10,000 running hours. If you have special request, please contact with our sales.

In highly competitive industries where every part can have a significant impact on cost, or where a motor's intended use would likely be intermittent and infrequent. 
10,000 running hours are usually be choosen for this design.
A lower grade of run capacitor may be selected with a design life of as little as 3000 hours.
 
For more details please check : http://www.suntan.com.hk/Motor-Capacitors/ 
 

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Suntan Telles You Typical Run Capacitor Ratings

November 12, 2015 Views
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Suntan Technology Company Limited
---All Kinds of Capacitors

Most motor running capacitor applications use a rating of 2.5-100 uf (microfarads) capacitance and voltages of 370 or 440 VAC. Usually common voltages are 370 or 450 VAC

They are also usually always 50 and 60 Hz rated. Case designs are round or oval, most commonly using either a steel or aluminum shell and cap. 

Terminations are usually ¼" push on terminals with 2-4 terminals per connection post. TS11-24 is the strongest CBB65 motor running capacitor in Suntan product line.

 

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Suntan Telles You What is a Running Capacitor Function

November 10, 2015 Views
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Suntan Technology Company Limited
---All Kinds of Capacitors
 
A motor running capacitor is used to continuously adjust current or phase shift to a motor's windings in an effort to optimise the motor's torque and efficiency performance. 
 
All running capacitors are designed for continuous duty and as a result, motor running capacitors have a much lower failure rate than motor starting capacitors.
 
 
 

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Suntan Telles Do You Need a Replacement Capacitor With One Resistor

October 20, 2015 Views
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Suntan Technology Company Limited
---All Kinds of Capacitors
 
My start capacitor has a resistor on it. Do I need a replacement capacitor with one?
Most replacement start capacitors will not include a resistor. You can check the condition of the old one by checking the resistance value, or just replace it with a new one. 
This should read somewhere around 10-20k Ohms and around 2 watts. The resistors are usually either soldered or crimped to the terminals. 
The purpose of the resistor is to bleed off residual voltage in the capacitor after it has been disconnected from the circuit after motor start up. 
Not all start capacitors will use one, as there are other ways to accomplish this. 
The important part is if your original capacitor had one, you'll need to replace it on the new capacitor.

For more details please check:
http://www.suntan.com.hk/Motor-Capacitors/TS13D3-CD60-Motor-Starting-Capacitor.html

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Suntan Telles Is Your Start Capacitor Bad or Not

October 15, 2015 Views
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Suntan Technology Company Limited
---All Kinds of Capacitors

The answer to this question is maybe. 
If your motor is slow to start, your start capacitor may have lost its capacitance rating due to wear and age, or you may have other non-capacitor related issues that have to do with other motor components.
 
For more details please check :http://www.suntan.com.hk/Motor-Capacitors/

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Suntan Telles You What Are Typical Start Capacitor Ratings

October 13, 2015 Views
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Suntan Technology Company Limited
---All Kinds of Capacitors
 
Most start capacitor applications use a rating of 50-1200 uf capacitance and voltages of 110/125, 165, 220/250 and 330 VAC. 
They are also usually always 50 and 60 Hz rated. Case designs are typically round and cast in black phenolic or Bakelite materials. 
Terminations are usually ¼" push on terminals with two terminals per connection post.
 
For more details please check :

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Suntan Telles You What is a Start Capacitor Used For

October 8, 2015 Views
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Suntan Technology Company Limited
---All Kinds of Capacitors
 
A start capacitor is used to briefly shift phase on a start winding in a single phase electric motor to create an increase in torque. 
Start capacitors possess a very large capacitance value for their size and voltage rating. 
As a result, they are only intended for intermittent duty. 
Because of this, start capacitors will fail after being left energized for too long due to a faulty starting circuit on a motor.
 
For more details please check :

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Suntan Motor Capacitors Specification Overview Part III

October 6, 2015 Views
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Suntan Technology Company Limited
---All Kinds of Capacitors
 
7、Start vs Run Capacitors
Start capacitors give a large capacitance value necessary for motor starting for a very short (seconds long) period of time. They are only intermittent duty and will fail catastrophically if energized too long. Run capacitors are used for continuous voltage and current control to a motor's windings and are therefore continuous duty. They are generally of a much lower capacitance value.
 
8、Are start and run capacitors interchangeable?
Yes and no. In unusual circumstances, a run capacitor could be used as a start capacitor, but the values available are much lower than the values usually available for dedicated start capacitors. The capacitance and voltage ratings would have to match the original start capacitor specification. A start capacitor can not ever be used as a run capacitor, because it could not handle current continuously (only a couple of seconds).
 
 

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Suntan Motor Capacitors Specification Overview Part II

September 29, 2015 Views
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Suntan Technology Company Limited
---All Kinds of Capacitors
 
4、Connection terminal style
Nearly every capacitor will use a ¼" flag style push-on connector. The next question is, "How many terminals per terminal post are needed for the application motor?" Most start capacitors have two terminals per post, and most run capacitors will have either 3 or 4 terminals per post. Verify that your selected capacitor has at least the number of connection terminals per connection post as the original motor capacitor.
 
5、Case shape
Nearly all start capacitors have a round case. Round run capacitors are by far the most common, but many motors still use oval designs. Electrically speaking, there is no difference. Fit is the only question here. If space in the mounting box is not limited, the case style does not matter.

6、Case size
Just like case shape, overall size makes no difference electrically. Select a capacitor that will fit within the space provided.

 

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