200A
A motor's service factor is a multiplier applied to a motor's horsepower rating to indicate the level of overload it can handle. The motor's nameplate amperage rating indicates the maximum current it should draw under normal operating conditions. The service factor does not directly impact the amperage rating, but motors with a higher service factor may be capable of handling higher loads and thus draw more current.
As well as motors, contactors also have kW and Ampere ratings. Have a look on the name plate of your motor and you will see its maximum current draw (amps). Select a contactor with a current rating greater than this.
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.
Depends on the current rating which should be on the motor.
All transformers, single phase or three phase have a "no-load current" rating. That is simply the nameplate rating of the Xformer in VA, (volt-amps) or KVA (1000Volt-amps) for larger Xformers. Simply divide the nameplate rating in VA or KVA by the supply voltage and you'll get the Xformers potential maximum output in ampheres.
The current rating for a relay used with motors depends on the motor's power requirement. As a general guideline, a relay for a motor should have a current rating at least as high as the motor's full load amperage to ensure proper operation. It is recommended to select a relay with a current rating slightly higher than the motor's requirement to prevent overheating and ensure reliable performance.
maximum horsepower rating
It isn't. It is only kept at maximum resistance when the motor is not running. That is done to limit the starting current.
you need the current of motor or the KW/HP rating
125 percent of full current rating of the motor
If the nameplate rating is 56 amps then that is the maximum amount of current that the motor should draw. If you are talking about the inrush current and not the run current, the current could get up to 300% instantaneously for five time cycles over full load amps. It is this condition that allows a larger size breaker or fusing to be used on smaller size wiring. The high current is not on the wire long enough to start doing physical damage to the insulation.
Yes up to certain rating and application a motor can be started on DOL. Beyond a rating different methods need to be used to limit the starting current.