no load voltage means there is no connected devices operating on the circuit. usually the voltage reading will reflect the normal or highest voltage reading in the circuit. full load voltage is measured when all devices in the circuit are operating at the same time. initial load startup will usually drop the voltage somewhat, but it should recover in a short period of time
Starting current is the current for starting the motor initially. So it requires much more current than it of normal condition.
Full load current is the current for maximum current to keep the motor.
1) Full load current : the greatest current that can flow in any electric circuit (Machine circuit , Electronics Circuits , ....etc ) under a specified conditions
2) Rated Current ( Nominal current ) : is the named value for the Circuit as it represent the current that a component , circuit ,device , system consumes, produces, or safely tolerates, when used in a given manner.
Also the rated current may be the maximum current that can be applied continuously under specified conditions without harming a component, circuit, device, system. ( so it can be the full load value )
For example, it may be a rating of the current drawn expressed in RMS amperes after a device is turned on and warmed up. The actual value, or interval of values, may not coincide with this number
In conclusion , the rated or nominal current is general expression for the current as it may represent the rms value , maximum value , Operating value for a machine or a device and so on , But the Full load current is the greatest current that can flow in a circuit Only.
Both terminologies are the same. The commonly used terminology used for a motor is FLA which is short for full load amps.
75
a fuse main purpose is to quickly disconnect a short circuit. when the current passing through it exceed its rated value
nominal cooling capacity is the derated cooling capacity at a certain design condition. Rated cooling capacity is the cooling capacity at sea level
Phantom loading consits of supplying the pressure circuit from a seperate low voltage supply. It s possible to circulate rated current through the curent circuit with a low voltage supply as the impedance of this is very low. therfore the total power required for testing the meter is compartively smal with phantom loading.
Most often a resistor fails because it is unable to properly dissipate the heat generated by the current flow. A resistor rated for more power (higher wattage) may resolve the problem.
A battery is rated to supply a certain number of volts. However, it actually supplies less, because they are "lost" as the current has to get out of the battery in the first place.(The battery has internal resistance)The amount of lost volts depends on the current being drawn:The less resistance a circuit has, the more current is drawn, because it's easier to flow.Example:If the circuit has little resistance, it draws a large current and the battery's internal resistance causes more lost volts.If the circuit has high resistance, it draws a small current and there are fewer lost volts.This is why when you short-circuit a battery (give it hardly any resistance to go through) it heats up and may explode. A large current is drawn and all the volts are used by the battery's internal resistance.
They are the same.
What is the difference between rated capacity and the nominal capacity
a fuse main purpose is to quickly disconnect a short circuit. when the current passing through it exceed its rated value
MCB stands for miniature circuit breaker , which provides protection against over current. the setting is not adjustable. RCB stands for residual circuit breaker which provides protection against earth fault as well as over current. It monitors the current difference between phase and neutral and if the difference is more than rated value say 200 milli amps it will trip.
"Rated current" is the current the device (motor or transformer?) is designed to handle at full load. "Tripping current" is the current where a protective device (fuse, breaker) will open to protect the device from overload/overheating. "Tripped current", may be the current the tripping device measured prior to making the decision to trip, if you are reading this from a digital protective device like a relay or OCR.
The B,C,D,K,Z indicates the instantaenous tripping current. It means the minimum value of current causes the circuit to trip without intentional time delay. approximately < 100ms. Consider Rated Current be : (In) Instantaenous tripping current for C Curve is 5-10 times the rated current(In). Instantaenous tripping current for D Curve is 10-20 times the rated current(In).
rated current is the current at any given conditions......but full load current is the maximum current that the system design can hav.....it w'll b larger than that f the rated current. rated current is the current at any given conditions......but full load current is the maximum current that the system design can hav.....it w'll b larger than that f the rated current.
class III rated for up to 5,000lbs, class IV is rated for up to 10,000lbs towing capacity
MCB (Miniature Circuit Breaker)-rated current not more than 100 A. Trip characteristics normally not adjustable. Thermal or thermal-magnetic operation. Breakers illustrated above are in this category.MCCB (Molded Case Circuit Breaker)-rated current up to 2500 A. Thermal or thermal-magnetic operation. Trip current may be adjustable in larger ratings. MCB (Miniature Circuit Breaker)-rated current not more than 100 A. Trip characteristics normally not adjustable. Thermal or thermal-magnetic operation. Breakers illustrated above are in this category.MCCB (Molded Case Circuit Breaker)-rated current up to 2500 A. Thermal or thermal-magnetic operation. Trip current may be adjustable in larger ratings.from Manu anand
Maximum current is defined by the rated KW of the device, say Motor. The motor may not run at its maximum rated capacity all the time. Nominal current is drawn when motor runs at nominal load.
teen-13 and overmature-18 and over
rated rpm is the maximum number of complete rotations that a rotor can rotate for every minute