a power source
Short circuit ratio is the ratio of field current required for the rated voltage at open circuit to the field current required for the rated armature current at short circuit
An electric current will flow if there is a voltage, and a conducting path (usually a closed circuit is required).An electric current will flow if there is a voltage, and a conducting path (usually a closed circuit is required).An electric current will flow if there is a voltage, and a conducting path (usually a closed circuit is required).An electric current will flow if there is a voltage, and a conducting path (usually a closed circuit is required).
The maximum current rating for the circuit breaker required for a 125 amp load is 125 amps.
Potential Source connected across a Closed Circuit Path.
Oh, dude, the short circuit ratio is basically the ratio of the maximum short circuit current to the rated current of a system. It's like when your phone battery is at 1% and you try to charge it with a potato - not gonna work out so well. So, yeah, it's just a fancy way of saying how much juice your system can handle in a pinch.
The maximum current rating for the circuit breaker should be at least 30 amps to accommodate the continuous current of 25 amps required by the load.
The maximum current rating for the circuit breaker needed for a 60 amp electrical load is 60 amps.
The maximum current rating for the circuit breaker needed for a device that operates at 20 amps is 25 amps.
Checked Stephen J. Chapman's Electric Machinery Fundamentals page 287. It says: Short Circuit Ratio (SCR) for the synchronous generator is the ratio of the field current required for the rated voltage at OPEN circuit to the field current require for the rated armature current at SHORT circuit.
0.01 mA is 0.00001 A. This is the current required to develop a voltage of 0.01 mV across 1 Ohm. Since it is a series circuit, it is also true that the current on 0.01 mA is present at every point in the circuit.
In an electrical circuit, the relationship between voltage and resistance is described by Ohm's Law. This law states that the voltage across a circuit is directly proportional to the resistance in the circuit. In other words, as resistance increases, the voltage required to maintain the same current also increases. Conversely, if resistance decreases, the voltage required to maintain the same current decreases.
...of what? to a house, to a breaker (to lower fault current level?), to an amplifier circuit?