Q: Dingfeng Capacitor -- What is the role of power capacitors? A: Power capacitors are divided into series capacitors and shunt capacitors. They are used to improve the voltage quality of the power system and improve the transmission capacity of the transmission line.The role of the series capacitor:1. Increase the voltage at the end of the line.2. Reduce voltage fluctuations at the receiving end....

Q: Dingfeng Capacitor -- Start capacitor maintenance considerations A: 1. Find out the cause of the malfunction; 2. Purchase capacitors of the same capacity and same type; 3. When you can't find the same type of capacitor, find the parameters of the capacitor and replace it with the same parameter that can be found. If you want to know more about Dingfeng capacitor, please click:http://www...

Q: Dingfeng Capacitor -- Frequently encountered problems when using film capacitors A: 1. Improper current selection in the rangeIf the required current value is greater than the allowable current value of the film capacitor, a film capacitor heating effect is formed.Long-term high-temperature operation will cause the life of the film capacitor to drop greatly, and it may explode and even burn. ...

Q: Dingfeng Capacitor -- Capacitance unit and conversion A: The basic unit of capacitance is: F, and μF, pF. And also there is a Less used units, that is: nF. Since the capacity of the capacitor F is very large, what we see is generally the unit of μF, nF, and pF, not the unit of F.The specific conversion between them is as follows:1F=1000000μF1μF=1000nF=1000000pF If you want to know more about Di...

Q: Dingfeng Capacitor -- How to judge the quality of film capacitors? A: 1) Look at the appearance, if there is a problem with theappearance, the film capacitor is likely to have a problem.2) Test the two legs of the film with a multimeter resistance fileto be very high resistance. If there is a capacitance meter, measure thecapacitance value to match the mark on the housing.3) Normal temperature ...

Q: Dingfeng Capacitor -- What are the measurement formulas for capacitor capacity? A: If a capacitor is with 1 C quantity of electricity, and the potential difference between the two stages is 1 V, the capacitance of this capacitor is 1 F, namely: C=Q/U.However, the capacity of the capacitor is not determined by Q(charge) or U (voltage), ie: C = εS / 4πkd. Where ε is a constant, S is the facing ar...

Q: How long is the delivery time for the capacitor? A: 1. Domestic order delivery time is 7-14 days. 2. export order delivery time is 20-30 days. If you want to know more about Dingfeng capacitor, please click:http://..........com/oid1740101/Product.htm E-mail/Skype:info..........comTel/WhatsApp:+8615057271708Wechat:a250967528

Q: Dingfeng Capacitor -- How to choose a suitable capacitor for our circuit? A: Choose capacitor should be based on the following considerations:1. Electrostatic capacity;2, rated pressure;3. Capacity gap;4. The amount of capacitance change under DC bias;5, noise level;6, the type of capacitor;7, the specifications of the capacitor.As a peripheral component of the device, almost every device'sData...

Q: Dingfeng Capacitor -- Is there a minimum order quantity for purchasing capacitors? A: 1. There is no order limit for domestic sales, but we can offer more favorable prices if you purchase more capacitors. 2. The minimum order quantity for export is:500 for the CBB60 run Capacitor, 1000 for the CBB61 Capacitor, 200 for the CBB65air conditioner Capacitor, 100 for the CBB80 lamp Capacitor, 100...

Q: What are the advantages of film capacitors? A: Film capacitors are widely used, such as our common air conditioners, electric fans, pumps, motors, lamps and so on. A wide range of applications are due to the many advantages of film capacitors.1. Film capacitors The range of temperatures applicable to them is relatively wide.2. Its long service life is long, as long as there is no damage,there w...

Q: Dingfeng Capacitor -- What is the difference between electrolytic capacitors and ordinary capacitors? A: Electrolytic capacitors generally have a positive and a negative polarity, that is, have a polarity. Therefore, the positive and negative electrodes cannot be connected incorrectly when used in the circuit. It is now possible to manufacture electrolytic capacitors that are non-polar or for A...

Q: Dingfeng Capacitor -- What is the difference between starting capacitorand running capacitor?A: Asingle-phase AC motor requires a starting capacitor to operate properly, somemotors are equipped with two capacitors, a starting capacitor and a running capacitor.Regardless of the type of capacitor, it has a starting action at the beginning of the motor start.However, when the motor reaches about 7...

Q:What are the main products of the company?A:Dingfeng Capacitor Co., Ltd. mainlyproduces and sells running capacitors, starting capacitors and powercapacitors.running capacitors are available in four different models, CBB60, CBB61, CBB65 and CBB80. The CBB60 ac motor capacitoris mainly used in pumps and motors. The CBB61 ac motor capacitor is mainly usedin fans and air conditioners. CBB65 ac moto...

Q:What’s the capacitor?A:Capacitor is a two-terminal passive component used in electronic circuits. The basic construction consists of two plates of a conductor and a dielectric insulator between them. The two ends of the capacitor are connected to alternating current, and the two ends of the capacitor respectively accommodate positive and negative charges. At this time, the current direction chan...

Q:How can you tell when a capacitor is bad?A:To test the capacitor with a multimeter, set the meter to read in the high ohms range, somewhere above 10k and 1m ohms. Touch the meter leads to the corresponding leads on the capacitor, red to positive and black to negative. The meter should start at zero and then moving slowly toward infinity.

Q:What is the purpose of a capacitor?A:Purpose of a capacitor is to keep negative & positive charges separated from each other. The two different charges are held on two different plates which are separated by an insulator. presence of capacitor in an AC circuit changes the phase angle between voltage and current.

Q:Can you wire capacitors in series?A:When capacitors are connected in series, the total capacitance is less than anyone of the series capacitors' individual capacitances. If two or more capacitors are connected in parallel, the overall effect is that of a single equivalent capacitor having the sum total of the plate areas of the individual capacitors.

Q:What is the formula for calculating capacitance?A:The definition of capacitance is given by this equation:capacitance C, measured in farads, equals charge Q, measured in coulombs, divided by voltage V, measured in volts. The capacitance is based on the physical characteristics of the capacitor.

Q:How to do when I want a capacitor but don't know the model exactly ?A:Technical ServiceAccording to drawings and other technical documents provided by the customer ,our professional team will select the most suitable model.

Q:How about after-sales service?A:After-sales Service Commitment1. Service purpose: quick, decisive, accurate, thoughtful and thorough.2. Service goal: win customer satisfaction with service quality.3. Service principle: the warranty period is 18 months.4. Service efficiency: during the warranty period, after customer receiving the notice,Dingfeng will provide reasonable solutions within 12 hours.

Q:How about the quality of the product?A:Product Quality Commitment1. The production and testing of products have quality records and testing materials.2. We sincerely invite customers to check the whole process and performance of the products, and then pack and deliver the products after the products have been confirmed.

Q:What about packing and delivery?A:Packing and DeliveryThe packing method is divided into direct packaging, the well word box packing, small carton packing, bubble wrap, etc., the general delivery time of bulk customized products is 25-30 days.

Q:Does the series capacitor have the same charge?A:Although the voltage drop across each capacitor value is different, different capacitor plate between the coulomb charge will be equal, because of the existence of the same amount of current in a series circuit of capacitance is provided the same number or the number of electrons.

Q:What are film capacitors?A:Film capacitors are capacitors which use a thin plastic film as the dielectric. This film is made extremely thin using a sophisticated film drawing process. Once the film is manufactured, it may be metallized or left untreated, depending on the needed properties of the capacitor. Electrodes are then added and the assembly is mounted into a case which protects it from e...

Q:What is the key advantage of film capacitor?A:A key advantage of modern film capacitor internal construction is direct contact to the electrodes on both ends of the winding. This contact keeps all current paths to the entire electrode very short. The setup behaves like a large number of individual capacitors connected in parallel, thus reducing the internal ohmic losses (ESR) and the parasitic i...

Q:What are the advantages of your capacitor?A:First of all, our factory has been making capacitors for 28 years, which is very mature for the production technology or experience of the capacitor. Moreover, our factory insists on importing machines from abroad, paying attention to the cultivation of workers, and every step is scientific and rigorous.On the capacitor production working procedure, af...

Q：What's the difference between a three-phase and two-phase electricity?A：First, from the appearance, the three phase electricity is more than two phase two fire lines.Secondly, the voltage level is different, the three-phase power is 380V, and the two-phase power is 220V. In addition, the use is also different, the three-phase electricity is used in enterprises and factories, such as motor , pump...

Q:How to test whether each capacitor is qualified?A:1 Strict aging sampling ensures that each capacitor has a life span of more than 3,000 hours: (1) under 1.6 times of rated voltage 450 v high voltage, ambient temperature 65 ℃, 70 hours testing; (2) under 1.8 times of rated voltage 450 v high voltage, ambient temperature 65 ℃, 70 hours testing; (3) Ensure the capacity and loss are within...

Q:What is a dual run capacitor? A:Dual run capacitors are 2 run capacitors in one case. They have nothing else that makes them electrically special. They generally have connections marked "C" for "common", "H" or "Herm" for "Hermetic Compressor" and "F" for "Fan." They will also have 2 different capacitor ratings for the 2 different parts. You might see 40+5 MFD, meaning that one side is 40 microf...

Q:Can I use a run capacitor in place of a starting capacitor? A:Yes, you can use run capacitors as start capacitors. The disadvantage of using run capacitors as start capacitors is that you would usually need to use more run capacitors than you have space for. For the start up of a motor to be able to develop torque, you need a very high capacitance value. To get a high enough capacitance value wi...

Q:What is the purpose of capacitor in a motor? A:Capacitor is used for developing starting torque. For improving power factor of motors. For smooth and noise less operation. It also acts as a filter.

Q:How is capacitance measured? A:Capacitors are rated by the storing characteristic referred to as capacitance which is measured by the scientific unit, farad. Each capacitor will have a fixed value that they are rated at storing which can be used in combination with other capacitors in a capacitor bank when there is a significant demand to absorb or correct AC power faults or to output DC power.

Q:Can you show your packaging of the power capacitor? A:Here is the packaging process

Q:How we define the Power Factor? A:The Power Factor is an indicator of the quality of design and management of an electrical installation. It relies on two very basic notions: active and apparent power.The active power P (kW) is the real power transmitted to loads such as motors, lamps, heaters, and computers. The electrical active power is transformed into mechanical power, heat or light.In a ci...

Q:How capacitors store energy? A:If you find capacitors mysterious and weird, and they don't really make sense to you, try thinking about gravity instead. Suppose you're standing at the bottom of some steps and you decide to start climbing. You have to heave your body up, against Earth's gravity, which is an attractive (pulling) force. As physicists say, you have to "do work" to climb a ladder (wo...

Q:How to calculate the power capacitor size? A：We need to know the reactive power consumption in order to properly calculate the size. If you use simple load, such as electric motor, inductors or resistive loads, equipment which does not require adjustable-speed-drive to control motors speed, you can calculate the capacitor bank size you need by observing your electricity meter.

Q:If I can't find a replacement for my dual run capacitor, can I use two separate run capacitors? A：The dual run capacitor design's only advantage is that it comes in a small package with only 3 connections. There is no other difference. If there is enough mounting space, using two separate run capacitors in place of your original dual run capacitor is an acceptable practice.

Q:What's your delivery time now? A:As now at the end of the year,many customers are beginning to prepare the next year's purchase,so our factory now will have many orders and the delivery time will be little longer than before,always around 40 days.Hope for your understanding.

Q:How do I select the correct Starting Capacitor ? A:The normal starting capacitor like this: Voltage:110-330V (110V/125V,165V,220/250V,330V) When you replace a starting capacitor,you must use the same capacitance and frequency as the original one.As for the voltage,you can choose a voltage in the range of the operational voltage of the motor;Capacitor voltage peak voltage indicator is...

Q:What's the function of power capacitor? A:It is mainly used for enhancing the power factor of the network,reducing the reactive loss and improving the voltage quality.For maximum power, voltage and current must be in phase, with their peaks coincident.In a factory, with a lot of motors, the motors use coils and present an inductive load, so voltage and current get out of phase, voltage leads.So ...