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The short answer is yes, usually. If you are working with an ultra high voltage stack all bets are off. For old stereos, etc. you need to estimate the peak reverse voltage and the current requirements. If you have documentation, use it, otherwise: rule 1. PIV is 30 volts per plate, divided by the formfactor: rule 1a. Formfactors: diode=1, half bridge (center tap)=2, bridge=4. rule 1b. Use the maximum of the above and the input electrolitic working voltage multiplied by 1.4, then round up to the next standard voltage within reason (silicon is cheap). rule 2. Assume 500mA per square inch of a single plate's area. rule 3. You may need to heatsink the new rectifier, especially if the current is over a few hundred mA. rule 4. Replace the electrolitics!!!! If the unit is old enough to have a selenium, they are well past the warentee. rule 5. If the voltage is low (under 10VDC) you may need to put a small valued resistor between the rectifier and capacitor. example: a 12 plate center tapped rectifier 1.5 inches square; 12*30=360V divide by 2 =180PIV area=2.25 square inches which gives a current requirement of a little over one amp so use a 1.5A 200PIV unit.
Yes, you can replace a selenium rectifier with a silicon rectifier. Silicon rectifiers are more efficient, smaller in size, and more reliable than selenium rectifiers. However, make sure to check the voltage and current ratings of both rectifiers to ensure compatibility.
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What is the schematic of a selenium rectifier?
A selenium rectifier typically consists of a stack of alternating selenium disks with metal electrodes connecting them. The input AC voltage is applied across the stack, and the rectified output is taken from the ends of the stack. A resistor is often included in series with the rectifier to limit current flow.
Can selenium rectifiers be rebuilt?
Selenium rectifiers, with their metal fins and long lived application in battery chargers and in tube type television sets are not intended to be repaired. Once a rectifier plate becomes damaged or it is burnt (unmistakable stink), the entire assembly should be replaced.
What company re-coat selenium to a cylindrical drum?
I am not aware of a specific company that re-coats selenium onto a cylindrical drum, as this process is not commonly done due to the toxicity and health risks associated with selenium. It is more common to replace the drum or find alternative solutions.
How many solid non metals are there and what are they?
There are seven solid nonmetals at room temperature: carbon, phosphorus, sulfur, selenium, iodine, and two allotropes of phosphorus - white phosphorus and black phosphorus.
How many moles of selenium in selenium tetra-fluoride?
There is one mole of selenium in one mole of selenium tetrafluoride, as the formula for selenium tetrafluoride is SeF4. Therefore, there is 1 mole of selenium in 1 mole of selenium tetrafluoride.
The conclusion of a silicon controlled rectifier?
conclusion of silicon control rectifier
What is the schematic of a selenium rectifier?
A selenium rectifier typically consists of a stack of alternating selenium disks with metal electrodes connecting them. The input AC voltage is applied across the stack, and the rectified output is taken from the ends of the stack. A resistor is often included in series with the rectifier to limit current flow.
What is SCR in drilling rig?
It is a silicon-controlled rectifier, converting AC to DC for use in drawworks, mud pumps, etc.:silicon-controlled-rectifier
What is the correct name for SeF6?
The correct name for SeF6 is selenium hexafluoride.
Why it is named silicon controlled rectifier?
i got no idea mate
When an SCR turns on it acts like n?
An SCR (Silicon Controlled Rectifier) acts like a switch when turned on. It can also be used as a rectifier.
Why silicon controlled rectifier doesn't work in reverse biased condition?
Because when reverse biased it behaves like any other rectifier/diode.
On a silicon-controlled rectifier which wire is the anode and which the cathode?
Anode is positive, cathode is negative
Difference between silicon-controlled rectifier and diode?
silicon controlled rectifier is a 3 terminal 4 layer device which has 2 consecutive P N junctions here the three terminals called anode, cathode and gate gate controls the conduction of the scr but diode just conducts in forward bias and blocks in reverse bias
What is a type of metalloid?
Examples: germanium, selenium, tellurium, antimony, boron, silicon.
Can selenium rectifiers be rebuilt?
Selenium rectifiers, with their metal fins and long lived application in battery chargers and in tube type television sets are not intended to be repaired. Once a rectifier plate becomes damaged or it is burnt (unmistakable stink), the entire assembly should be replaced.
What is the cost of silicon controlled rectifier?
A: A hockey pack package $300 a TO18 package $0.10
