2nd October 2019

quora

10

What is float and boost charging?

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A float charger is a slow charger that keeps a lead acid battery topped up. A booster can provide enough amps to jump start a vehicle with a flat battery and allow the vehicle to take over the charging once the engine is running just the same as using another vehicle.

Also know, what is absorption mode on a battery charger?

The level of charge that can be applied without overheating the battery is known as the battery's natural absorption rate. For a typical 12 volt AGM battery, the charging voltage going into a battery will reach 14.6-14.8 volts, while flooded batteries can be even higher.

What is an automatic float battery charger?

Keep your 12 volt automotive battery in top condition even when your vehicle is in storage. The automatic battery float charger has a floating circuit to maintain a full charge without overcharging. Easy to use, simply connect your battery and plug in the charger. Perfect for RVs, ATVs and other seasonal vehicles.

What is float voltage for lead acid battery?

Some lead acid batteries are used in a standby condition in which they are rarely cycled, but kept constantly on charge. These batteries can be very long lived if they are charged at a float voltage of 2.25 to 2.3 volts/cell (at 25 degrees C) (13.5V to 13.8V for a 12V battery).

1

What is meant by trickle charging?

Trickle charging means charging a fully charged battery at a rate equal to its self-discharge rate, thus enabling the battery to remain at its fully charged level; this state occurs almost exclusively when the battery is not loaded, as trickle charging will not keep a battery charged if current is being drawn by a load

2

What is battery boost?

A jump start, also called a boost, is a method of starting a vehicle with a discharged or dead battery. A temporary connection is made to the battery of another vehicle, or to some other external power source.

3

What is an equalizing charge for a battery?

Applying a periodic equalizing charge brings all cells to similar levels by increasing the voltage to 2.50V/cell, or 10 percent higher than the recommended charge voltage. An equalizing charge is nothing more than a deliberate overcharge to remove sulfate crystals that build up on the plates over time.

4

What is meant by boost voltage?

A boost converter (step-up converter) is a DC-to-DC power converter that steps up voltage (while stepping down current) from its input (supply) to its output (load).

5

Can you step up dc voltage?

Yes, you can using a boost converter , it steps up the voltage and steps down the current. To step down the DC voltage, a buck converter is used, and to step up the DC voltage, a boost converter is used. For stepping up and down purposes at the same time, a buck-boost or cuk converter is used.

6

What is meant by Cycloconverter?

A cycloconverter (CCV) or a cycloinverter converts a constant voltage, constant frequency AC waveform to another AC waveform of a lower frequency by synthesizing the output waveform from segments of the AC supply without an intermediate DC link (Dorf 1993, pp. 2241–2243 and Lander 1993, p. 181).

7

What is the type of conversion in Cycloconverter?

In industrial applications two forms of electrical energy Direct Current (DC) and Alternate current (AC) are used. A cycloconverter is a device that converts AC, power at one frequency into AC power of an adjustable but lower frequency without any direct current, or DC, stage in between.

8

What do you mean by firing angle?

Firing angle is the angle at which the pulses are given to the gate terminal of the thyristor which makes it to conduct. For the positive cycle of the AC signal (0° to 180° or 0 to T/2) the angular separation after angle = 0° at which you apply the Gate signal is called the Firing Angle.

9

What is the delay angle?

The delay angle is defined as the angle between the zero crossing of the input voltage and the instant the thyristor is fired.

10

What is extinction angle of a thyristor?

The firing pulse is applied to the gate of thyristor X1 (trigger pin) at instant defined as α. It remains in the ON state until the load current tries to go to a negative value. This instant is defined as angle extinction β.

11

What is RLE load?

The load contains an RLE load which can be also considered to be the DC motor connected to a single phase rectifier.The regenerative energy can be fed back to source when the value of load emf or back EMF of Motor exceeds the value of source EMF.FOR FURTHER REFERENCES.

12

What is the extinction angle?

The extinction angle is the measure between the cleavage direction or habit of a mineral and the extinction. To find this, simply line up the cleavage lines/long direction with one of the crosshairs in the microscope, and turn the mineral until the extinction occurs.

13

Why do minerals go extinct?

Anisotropic minerals go extinct between crossed polars every 90° of rotation. Extinction occurs when one vibration direction of a mineral is parallel with the lower polarizer. The extinction angles when measured on several grains of the same mineral, in the same thin section, will be variable.

14

What is straight extinction?

straight extinction (parallel extinction) In optical mineralogy, the phenomenon which occurs when the vibration direction of the light ray is parallel to the crystal face or cleavage traces within the mineral.

15

What is oblique extinction?

oblique extinction (inclined extinction) In optical mineralogy, the extinction of a mineral (i.e. it becomes dark) in crossed polars with its cleavage traces or crystal boundaries positioned at an oblique angle to the E—W and N—S planes of vibration of the polarizer and analyser.

16

What is symmetrical extinction?

symmetrical extinction. A Dictionary of Earth Sciences. symmetrical extinction In optical mineralogy, the phenomenon which occurs when the vibration direction of the light bisects the angles between two sets of cleavages (as seen in basal sections of pyroxenes and amphiboles).

17

What is the definition of isotropic mineral?

As discussed in the last lecture, isotropic substance are those wherein the velocity of light or the refractive index does not vary with direction in the substance. Substances such as gases, liquids, glasses, and minerals that crystallize in the isometric crystal system are isotropic.

18

What does undulatory extinction mean?

Undulose extinction or undulatory extinction is a geological term referring to the type of extinction that occurs in certain minerals when examined in thin section under cross polarized light.

19

What is meant by isotropic material?

In the study of mechanical properties of materials, "isotropic" means having identical values of a property in all directions. This definition is also used in geology and mineralogy. Glass and metals are examples of isotropic materials.

20

Is quartz isotropic?

Most common rock-forming minerals are anisotropic, including quartz and feldspar. Anisotropy in minerals is most reliably seen in their optical properties. An example of an isotropic mineral is garnet.

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