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ElectricalFundaBlog - Electrical & Electronics Encyclopedia

Electrical Funda Blog - An Electrical & Electronics Engineering Group that provides information and guides to Electrical enthusiasts around the world on various subjects like Power Generation, Distribution, Electronics, Marine Electricity, Navigation systems, Test Equipment, Reliability and Instrumentation Control.

Types of EMI

EMI stands for Electromagnetic Interference. It is a generalization of an older terminology RFI (Radio Frequency Interference). EMI can be defined as an electromagnetic or electro static disturbance that causes malfunctioning or undesired response in one or more electronic system, equipment or circuit. In this post, ...

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EMI coupling methods

EMI is the short form of Electromagnetic Interference. It is a generalization of an older terminology RFI (Radio Frequency Interference). Electromagnetic Interference can be defined as an electro-static/electro-magnetic disturbance which results in malfunctioning or undesired response in one or more electronic system, equipment or circuit. In this ...

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Electromagnetic Interference

As the name clearly suggests, EMI stands for Electromagnetic Interference. It is a generalization of an older terminology RFI (Radio Frequency Interference). EMI can be defined as an electromagnetic or electro static disturbance that causes malfunctioning or undesired response in one or more electronic system, equipment ...

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Null Modem cable

Null Modem Cable. A null modem cable is a form of RS-232 standard where the transmit and receive lines are cross linked. Normally a straight through serial cable is used with this kind of adapter. The adapter is pre configured with the necessary cross links. ...

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DB 9 Loopback

The RS232 connector was initially developed to use 25 pins. In this DB25 connector pin configuration, provisions were provided for a secondary serial RS232 communication channel. However, practically only one serial communication channel with handshaking is present. There were hardly a few computers manufactured in which provision for ...

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RS 232 Signals

RS 232 stands for Recommended standard number 232. This interface is an age old, and yet it is being used for interconnecting DTE and DCE. It is also one of the maximum used standards for data exchange. The simplicity of configuration and huge capability has rendered this standard ...

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Interface

An Interface is a common shared medium across which two different components of a computer system can exchange data or information. There are basically two types of interface: Hardware Interface Software Interface Majority of equipments which do processing of data contains a relatively restricted capability in ...

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Star Delta Starter

Star Delta starter comes under the category of starters using reduced voltage method for starting the motor. Just like all other starters, the basic aim to use this starter is to decrease initial high starting current generated by the motor at the starting procedure. ...

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Auto Transformer Starter

An Auto transformer starter basically uses an auto-transformer to reduce the voltage applied to a motor during its start. As we know that the starting of big motors which are used for prolonged periods exert large current in the circuit. Due to ...

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Direct online starter

The most simple and basic type of starter for motors (induction motor) is the Direct Online starter. The Direct on line starter contains an ON/OFF switch and an OLR. Here, OLR stands for overload relay for protection against excessive load current.

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