What is an MOV in a circuit?
Table of Contents
What is an MOV in a circuit?
▪ An MOV is a voltage dependent device which has an electrical behavior similar to back to back zener diodes. ▪ When exposed to high voltage transients, the MOV’s resistance. changes from a near open circuit to a very low value, thus clamping the transient voltage to a safe level.
What is a MOV used for?
A Metal Oxide Varistor (MOV) is a protection component used in power supply circuits that is powered directly from AC mains. It is used to protect the circuit from high voltage spikes by varying its resistance.
What is the symbol for varistor?
Varistor symbol The varistor circuit symbol can be seen to be very similar to that of a thermistor. It consists of the basic resistor symbol of a rectangle with a diagonal line through it that has a small added section parallel to the body of the resistor symbol. This indicates the no-linear nature of the varistor.
What is the value of MOV?
Management of Value (MoV) is a value management methodology that can be utilised to get the best financial and non-financial benefits from programmes, projects and portfolios. Within portfolios, MoV matches the organisation’s strategic goals with the agenda for the programmes.
What is MOV fuse?
Varistors are voltage, sensitive devices designed to protect circuits against transient voltage surges.
Is MOV a capacitor?
Working Principle. The term MOV or Metal Oxide Varistor is a variable resistor. But not like a potentiometer, its resistance will change automatically depending on its voltage.
What is a metal oxide varistor used for?
Metal Oxide Varistor’s are semiconductor devices who’s resistance changes from a very high open circuit condition to a very low short circuit condition to clamp any surge or voltage transient in an electrical circuit.
What is clamping voltage of MOV?
MOV manufacturers rate their MOV either AC, DC, and/or Maximum Continuous Operating Voltage (MCOV). However, MOV manufacturers list their clamping voltage at 1 mA DC based on regulatory standards such as IEC 61643-331.
What is full form of MOV?
mov, filename extension for the QuickTime multimedia file format.
What is MOV in surge protection?
Metal Oxide Varistors (MOVs) are bidirectional and non-linear surge suppressor devices that are widely used for limiting voltage during a surge or transient event in a broad variety of applications.
What is MOV in LED driver?
Thermally Protected Metal Oxide Varistors (MOVs) MOV technology is an affordable, highly effective method for suppressing transients in power supplies and other applications, such as the SPD modules often located in front of an LED driver. MOVs are designed to clamp overvoltage transients within microseconds.
What is MOV in manufacturing?
metal-oxide varistors (MOV) designed to provide surge protection for motor controls and power supplies used in oil-drilling, mining, transportation equipment and other heavy industrial AC line applications. …
How do I choose a MOV for my surge protector?
Application Guidelines
- Step 1: To find the voltage rating of the MOV, allow for 20% headroom to account for voltage swell and power-supply tolerances: 24 V dc × 1.2 = 28.8 V dc.
- Step 2: To determine which MOV disc size to use, first identify the MOV series that minimally meet the 1000-A surge requirement.
What is MOV in LED bulb?
MOV is a voltage reliant, nonlinear device used to protect various types of electrical devices and semiconductor elements from high transient voltages. In electronic devices, we use the capacitor in the parallel mode as it has energy handling ability.
What is MOV in supply chain?
2. MOV. Minimum Order Value. Price, Business, Order. Price, Business, Order.
