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They can be used as a kind of safety switch to allow a circuit with a small current through to switch on a circuit that will hve a larger current flowing through it.
Wiki User
∙ 11y ago
Wiki User
∙ 7y agoA relay circuit is easier to trouble shoot a fault as compared to a solid state relay.
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What is the advantage of a digital mixer?
A digital mixer enables one to change live vocal samples, add in previously recorded music or vocals and apply different effects and improvements. The advantage of a digital mixer is that one can do all of this simply, retain different versions along the way and produce a good quality output.
What are numerical relays?
As we know numerical relays use DIGITAL SIGNAL PROCESSOR as its computational hardware and based on microprocessor. WORKING: Analog input is feed into the anti aliasing filter which is a low pass filter.Output of this filter is feed into the sample and hold circuit , frequency of sampling should be twice of our highest frequency of interest(according to the nyquist criterion).if sampling frequency kept low than aliasing input may occur. after the sampling, signal are feed into the multiplexer,where all the signal get multiplexed and we have a single signal.this signal is feed into the analog to digital converter.this digital signal is feed into the microprocessor and microprocessor generates control signal according to its input. for example if you are using N.R. for over-current protection than you should set a value of current in your program.if the value of current passes through the circuit is greater than the set value..than N.R. enables the circuit breaker and hence our system is protected..
What are the advantages of digital data compared to analog data?
Digital data requires less bandwidth than analog data (e.g. new digital television broadcast compared to old analog broadcast), so more data can fit in the same frequency (e.g. DSL compared to analog modems). This is the primary advantage, although it is also generally stated that data is easier to recover and more tolerant towards interference.
What is digital electronic?
Digital Electronics deals with logic 1 and logic 0, where logic 1 is represented by one voltage and logic is represented by another voltage.(ie. it is a discrete representaiton of analog signals). The main advantage of digital signals over analog signal is that it is less prone to noise.
What are the different types of relays used in substation?
kinds of electrical relays
Advantage and disadvantages of digital subtraction angiography?
a
What are advantage of digital multitester?
They are easier to read.
What is the advantage of digital surveillance?
The main advantage of digital surveillance is that you can easily see what is happening wherever you are. This means that you can keep an eye on your home when you are at work and vice versa.
What is the advantage of digital cable over regular cable?
The advantage of digital cable is that you receive better picture quality and additional channels than regular cable
What is the advantage of digital clock?
A digital clock can be looked at and the time will be known immediately. You do not need to know how to tell time with a digital clock.
What are the advantages of digital keyboards?
The first advantage of digital keyboards is that they are much more easily transported. Also the price of a digital keyboard is substantially lower than getting an authentic piano.Another advantage is that less space is required for a digital keyboard and a digital keyboard can also be connected to a computer for analysis, and more.
What is the advantage of digital electronics?
New, faster, lighter, better, and cheaper.
Advantages and disadvantages of grapevine communication?
The advantage of grapevine communication is that it relays information fast. The disadvantage is that the information is usually unverified.
What does DIGSI stand for?
DIGSI stands for "DIGital Synchronous Interface," which is a software used in protection relay devices for configuring and parameterizing the relays.
What is advantage of digital signal processing?
Digital is always preferred over analog for the following reasonsAccuracyImmune to noiseEasy error detection and correctionThe same is true for digital signal processing too.
Numerical and microprocessor relay comparison?
Numerical relays are all microprocessor based, but there are relays that take the advantage of microprocessor technology and are not fully numerical. In other words, if a relay is fully based on processing the samples of input signals it is numerical relay.
What are the advantages of using a digital multimeter opposed to an analog one?
The accuracy is the biggest advantage.
