MCB applications

Some of the applications of  MCB are listed below:

  • MCB is used in new constructions home, shops instead of the older types of fuses.
  • MCB is designed to protect the house from the circuit overload.
  • MCB is required in homes, offices, and shop distributions boards for the protection of individuals' circuits and complete wiring systems in that building through the main circuit.
  • They are being used extensively these days and are virtually replacing the traditional rewire-able fuses.
  • MCB can be used with a ground fault or arc-fault mechanism because the breakers consist of the system that opens the contacts if a line to ground fault occurs.
  • MCB is sightly more expensive than fuses but this is offset by the fact no cost is involved. I resting them after the operation and it is a very quick and simple process.
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Limitations of ELCB

Some limitations of ELCB are listed below:

  • Failure to respond at certain conditions.
  • As we know the disadvantages of ELCB as that ELCB needs a sound earth connection, for the load protects.
  • ELCB does not detect a fault that doesn't pass current through CPC to earth rod.
  • ELCB does not allow a single building system to easily split into multiple sections with independent fault protection because the earthing system is bonded to the pipework.
  • Some electrical leaky appliances water heater, washing, machine, and coolers may cause CKL to trip.
  • ELCB may be tripped by the external voltage from something connected to the earthing system such as a metal pipe.
  • This breaker may be tripped by external voltage from something connected to the earthing system such as metal pipes.
  • If the electrical installation earth rod is placed close to another or the same of the earth of a building, then a high earth leakage current from other buildings can raise the local ground potential and cause a voltage difference across the two earth, again tripping to the ELCB.
  • They introduce additional resistance and an additional point of failure into enough voltage to cause it to trip.
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Limitations of RCCB

Some limitations of RCCB are listed below:

  • RCCB does not protect from the overheating that strike if conductors are not screwed into terminals.
  • RCCB does not guarantee to operate if none standard waveform is generated by the load. It is because RCCB is designed to operate on a normal supply waveform.
  • RCCB does no shield against line neutral shocks.  Because the reason for the current in them is stable. The current gets balanced as both the terminals are carried together.
  • RCCB does not protect against line neutral shocks. It's mainly because the current in them is balanced. The current gets balanced between as both terminals are held together.
  • In RCCB, there might be some unwanted tripping of RCCB. It is mainly because whenever there are sudden changes in electrical load, there can be small current flow to earth, especially in the old appliances.
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Precautions of multimeter

Some precautions of multimeter:

  • When you have to use multimeter first check proper DC polarity when measuring DC.
  • You have to always start with the highest voltage or current range.
  • De-energize and discharge the circuit completely prior to connecting or disconnecting to a device called a multimeter.
  • Be sure that the multimeter is switched during the to AC prior to trying to measure AC circuits.
  • Choose the final range that enables a reading close to the middle of the scale.
  • Set the ideal current range before measuring higher current or some else it will blow the digital multimeter fuse. 
  • A resistor should be measured standalone or the connected parts in the circuit may affect to some of the reading.
  • Never apply power to the circuit when you have to measure resistance with a multimeter.
  • Be sure to read AC measurements on the AC voltage position.
  • In case you want to verify the presence of dangerous voltage in a circuit with a digital multimeter, it is crucial to verify both the  AC as well as DC voltage.
  • Make sure that change the 0 ohms reading after changing resistance ranges before creating a resistance measurement.

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Applications of multimeter

We all know that a multimeter is extremely too important for electronics and electrical instruments and is extensively used for carrying out various tests and to measurements in electronics as well as electrical circuits. 

There are two types of multimeter basically analog multimeter and digital multimeter. they are many advantages of the analog multimeter as well as digital multimeters advantages. The applications are measuring accurately circuit and component parameters. They are different type of multimeter is used for the test, to adjust and troubleshoot electronic circuits, traditionally multimeter of either type measure three main parameters.

1. Current both AC and DC
2. Voltage both AC and DC
3. Resistance

The main Applications of multimeter are listed below:

  • Voltage measurement: High and low value DC measurement and peak to peak and DC average measurement.
  • It will use for temperature and environmental applications: Low-cost weather station, DMM internal temperature.
  • Resistance measurement: Micro ohm meter, measuring with constant voltage and measuring resistance with constant current
  • Time and frequency measurement: Fast frequency, and time measurement
  • Current measurement: DC current measurement, true RMS AC current

LiFi vs WiFi

We all know that LiFi stands for Light fidelity while in WiFi stands for wireless fidelity. LiFi uses the light for data transmission while in WiFi uses electromagnetic waves at radio frequencies for data transmission. In this article, we list some main key difference between LiFi and WiFi. 

The main key difference between LiFi and WiFi are listed below:

  • LiFi stands for light fidelity while in, WiFi stands for wireless fidelity.
  • LiFi coined by Prof  Harald has i2011, while WiFi is invented by CR corporation o 1991.
  • LiFi works based on the VLC principle, while WiFi consists of two important devices namely, WiFi router, or AP, WiFi dongle and WiFi stations.
  • LiFi transmits data using light y the help of LED bulbs, WiFi transmits data using radio waves using a WiFi router. 
  • LiFi presents an IrDA compliant device while in WiFi WLAN 802.11/b/g/n/ac/d standard-compliant devices.
  • Conversion distance in LiFi is around 10 meters but in conversion distance of WiFi about 32 meters. 
  • The data transfer speed of LiFi is about 1 Gbps, and the WiFi ranges from 150 Mbps to a maximum of 2 Gbps.
  • Frequency operation of LiFi 10000 time-frequency spectrum of the radio, but in WiFi 2.4 GHz, 4.9 GHz, and 5 GHz.
  • While in LiFi using light is blocked by the walls hence provide more secure data transfer but in WiFi, walls cannot lock radio waves so we need to employ more techniques to achieve secure data transfer.
  • The data density of LiFi works with a high dese environment while in WiFi work in the less dense environment due to interference related issues.
  • Minimum components used in LiFi is LED blub, LED driver and photodetector, WiFi used router, modems, and access points.
  • LiFi is mainly used in airlines, undersea exploration, hospitals, office,  home premises, etc but WiFi used for internet browsing with the help of WiFi hotspot.

Full form of HiFi

What is the full form of HiFi?

  • High Fidelity

What does HiFi mean?

Some of the people who understand that HiFi has a connection with WiFi but HiFi is the word used for high-quality production. This term used mostly used listeners, home audiophiles, listeners of music with quality production. 

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