metal halide lamp capacitors

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Case： Round aluminum oil-filled and sealed case.

AC film capacitors for general purpose applications (e.g. AC filters with harmonic frequencies exceeding 60 Hz), as well as for lighting.For the latter, AC capacitors are used in conjunction with asynchronous motors on single-phase mains supplies. They are designed for 50 or 60 Hz systems.

Applications：Mainly used for fishing lamp and metal halide lamp.

**Specifications**
Standard temperature	-25℃ ~ +85℃
Voltages Ratings	250V - 500V AC
Capacitance Range	1-120 uF
Applicable Standard	IEC60252-1:2011,GB/T3667.1-2005.UL810、EN60252-1：2011

Q: Is the capacitor attached to the carbon foil positive?: The negative electrode of the capacitor is made of electrolyte, the electrolyte is generally composed of boric acid, ammonia, ethylene glycol and other components.

Q: Capacitance can pass high frequency resistance low frequency principle: Capacitor has a direct effect on the direct current, refers to the DC current on the capacitor charge is completed, the circuit does not flow current. In the DC power supply just added to the capacitor, the circuit is a current flow, the current is the charge current of the capacitor.

Q: How to judge the capacitor is good or bad?: Due to the amplification of the composite transistor, the measured capacitance of the charge and discharge process to be amplified, so that the multimeter pointer increase the amplitude, so easy to observe. It should be noted that: in the test operation, especially in the measurement of small capacity capacitance, it is necessary to repeatedly change the measured capacitance of the pin contact A, B two points, in order to clearly see the multimeter pointer swing.

Q: Why some Y capacitor is very small, and some Y capacitor is very large?: At the AC power input, it is generally necessary to add three safety capacitors to suppress EMI conduction interference. AC power input is divided into three terminals: FireWire (L) / Neutral (N) / Ground (G). Between the line of fire and the ground and between the zero line and ground in parallel with the capacitor, generally referred to as Y capacitor. The two Y-capacitor connection position is more critical, must meet the relevant safety standards, to prevent electronic equipment leakage or chassis charged, easy to endanger personal safety and life.

Q: How to identify high voltage capacitors is good or bad: You have no voltage regulator, if there is, with a voltage regulator, an ammeter a voltmeter (available multimeter instead) to the capacitor plus an integer current (controlled by a voltage regulator), and then calculate the capacitance based on the voltage reading and current reading Impedance, and then divided by 3184 calculated by the tolerance value, the results and the capacitor nameplate on the standard almost no capacitance, and the other side of the capacitor is broken

Q: What is the electrolytic capacitor inside?: There are aluminum foil, paper (not the general paper), as well as electrolyte. There is polarity, then the explosion will explode.

Q: How does the capacitor work? What does it do?: The bypass capacitor is an energy storage device that provides energy to the local device, which can equalize the output of the regulator and reduce the load demand. Like a small rechargeable battery, the bypass capacitor can be charged and discharged to the device. To minimize the impedance, the bypass capacitor should be as close as possible to the load device's power supply pin and ground pin.

Q: Why does the circuit current gradually decrease when charging the capacitor?: due to the increase in the number of charge, the electrostatic field field strength will gradually increase, increasing the field strength caused by the absorption of electrons to produce exclusion, So that the number of adsorbed charges gradually reduced, the number of charge to reduce the performance of the phenomenon that the charging current is gradually reduced. When the number of charges on the two electrode plates of the capacitor reaches a gradually increasing field strength constraint, the amount of charge is not increased and the equilibrium state is reached, that is, the charge saturation current is zero.

Q: What is the difference between polyester film capacitors and ceramic capacitors?: Polyester capacitor medium for the polyester film, its capacity and pressure range, small size, large capacity, high temperature, low cost. But tgδ with the frequency changes, it is used for tgδ, stability and loss requirements are not high occasions, such as DC and pulsating circuit.

Q: What is the capacitor, what is the use, where is there?: In the electronic technology, used to consider the wave, phase, straight, bypass, frequency, etc. Almost all of the electronic products, household appliances are the following are some of the capacitor shape.

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