0
Volt Ampere Reactive
Wiki User
∙ 12y ago
Add your answer:
Earn +20 pts
What is full form of mvar?
As you have written it (mvar), it stands for 'reactive millivolt amperes', but I think you probably mean 'Mvar', which stands for 'reactive megavolt amperes'. These are units for reactive power of an alternating-current load.A lower-case 'm' represents 'milli', whereas an upper-case 'M' represents 'mega'. 'V' represents 'volts', 'A' represents 'amperes', and 'r' represents 'reactive'.SI does not specify a symbol for reactive volt amperes (it only recognises 'watts'), so it is seen in written in various ways, including: var, VAR, VAr, VA(r), and VAr -in each case, it is also common to see a 'raised period' between the V and the A -e.g. V.Ar .
How i calculate of dg full load?
I'm not sure what you're asking - is DG distributed generation? Full load would be provided by the DG; if it's a 40MW wind farm, it will be able to provide you with turbine data; each turbine will be able to provide so much kVA. I would use this number (instead of kW output) for sizing of equipment as this would give a maximum. You may also need to take into account any D-VAR and capacitor bank effects on this cumulative KVA.
Current calculation when parallel operating generators?
Yes and no. One generator may be operating in the leading VAR region, and the other may be operating in the lagging VAR region. This would result in reactive current effectively circulating between the two generators.If you are talking about active (real) power, this should not happen, and will cause protective equipment to trip. Generators should generate real power, not consume it.
What is the apparent power of an RLC parallel circuit if the true power of the resistor is 4800 watts the reative power of the inductor is 7200 and the reactive power of the capacitor is 3600?
Apparent power is the vectorial sum of the true power and reactive power. In this case, the total reactive power is the difference between 7200 var and 3600 var -i.e. 3600 var.So you can now use the equation,(apparent power)2 = (true power)2 + (total reactive power)2,to determine your answer.
What types of circuit load in which the apparent power is greater than real power?
Apparent power is VA. Real power is W reactive power is VAR. Under an inductive+resistive load the VA is higher than W
What is the difference between static var compensator and static var cenerator?
there is no such thing as static var cenerator but if you meant static var generator then the difference is the same. it is one in the same thing, a combination or inductance and capitance to generate either reactive inductance or capacitive reactance.
What has the author Papadouris written?
Papadouris has written: 'Investigation of an advanced static VAr compensator'
What is the cost of Static Var compensator?
For 230 kv application, Its around 75k/MVar
How do you compute data for modelling static var compensator?
To compute static VAR compensation, you need to know the original power factor, the desired power factor, the real power delived to the system and the equivalent load model represented as r+jw. This will enable the total var compensation, therefore, enabling the calculation of C to provide the leading PF.
What is the input data for modeling of static var compensator?
To compute static VAR compensation, you need to know the original power factor, the desired power factor, the real power delived to the system and the equivalent load model represented as r+jw. This will enable the total var compensation, therefore, enabling the calculation of C to provide the leading PF.
How do you make program from algorithm of particle swarm optimization for voltage stability in matlab?
To make a program from an algorithm of particle swarm optimization for voltage stability you need a method for finding an optimal location for Thyristor Controlled Series Compensator(TCSC)and Static Var Compensator(SVC).
What is full form of VAR?
Value Added Reseller/Retailer - In Sales Industry
How Static var compensator different from other FACT devices?
Static Var Compensators are the most important FACTS devices, SVc's have high accuracy, availability and fast response and therefore give better steady state and transient voltage control compared to classical shunt compensation. SVC's require large inductive and capacitive components and occupy a larger space than STATCOMs. STATCOMs give higher reactive oututs at low voltages compared to SVCs.
What is dynamic var compensation?
The reactive Power Compensation system that is Automatically able to adjust its reactive Power so that concerned system Power Factor is maintained within the desirable limits (Near Unity) is known as "Dynamic VAR Compnesation" system. The Present day technology, known type of "Dynamic VAR Compensation" systems are: Conventional Method: * Contactor switched Capacitor Banks controlled by "Automatic PF controller / regulator". Also popularly known as "APFC system". Here capacitors are switched on/off depending upon the need automatically. Capacitors switched are frequently connected with series reactors for controlling harmonics through it or for switching transient suppression. Static VAR compensation Method: * Thyristor switched Capacitor Banks controlled by "Automatic PF controller / regulator". Also popularly known as "TSC system" or "RTPFC System (Real time PF correction)". Normally, the compensation time of such systems are much faster than conventional method. Here too, capacitor banks are frequently fitted with series reactors to control harmonics. The "zero differential voltage switching" of capacitor banks normally controls the switching transients. * STATCON (Static Condenser) or STATCOM (Static Synchronous Compensator) is comparatively a new technology and offers smooth and fast reactive power (VAR) compensation by usage of Power Electronics based technology. Normally, the MOSFETs or IGBTs based inverter using sinusoidal PWM technology achieves the desired compensation either in capacitive and inductive reactive power. * Thyristorised Static VAR compensator: This technology uses the thyristor switched or phase angle controlled reactors that are put in shunt with fixed capacitor. This is fairly an old technology and slowly due to economics and technology advantage of TSC system or STATCON / STATCOM system is not used recently. All the above mentioned systems can be termed as "Dynamic VAR compensation" systems. The "Fixed VAR compensation" which normally uses fixed capacitors / inductors that are permanantly connected on mains supply system (sometimes manually switched On/off) should not be confused as "Static VAR compensation" as word "Static" is used as adjective, which is for defining "type of technology" usage and not for "VAR".
How do you say have in Turkish?
You'd generally use "var" at the end of the sentence. You'd also put the person or thing in the possessive form. Like, "I have 1 book" would be "Benim bir kitabım var." (Notice how "benim" and "kitabım" both indicate possessive form.) "Ali has one sibling" would be "Ali'nin bir kardeşi var." "Var" can also mean "there is" or "there are"
What is the meaning of Var -var vachne marathi senten?
What is the meaning of var-var vachne(marathi sent) in marathi
What is the abbreviation for variant?
Var or Var.
