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It is not intended for continuous working mode. So most crane works with a 40% duty cycle full-load factor. 1. lowing the hook, 2. lifting the load, 3. carrying the load, and 4. lowering the load. dixon_robert@Yahoo.com I am presently researching on the most suitable motor for 35,000Kg/ 55KW full-load with vector control technology. Looking for help too....
What else can I help you with?
What is crane engine?
An engine specifically designed or adapted to Cranes. One such model is a Big Cummins Diesel that has twelve cylinders and is rated at 635 maybe 685 HP and is available standard on certain marques and models of heavy-duty crane. with a 200 foot boom, l50 ton lifts are well within the duty cycle!
How does ratio Ra Rb affect the duty cycle of an as table 555 timer?
In an astable 555 timer configuration, the duty cycle is influenced by the ratio of resistors Ra and Rb. The duty cycle can be calculated using the formula ( \text{Duty Cycle} = \frac{R_b}{R_a + 2R_b} \times 100%). As the ratio ( \frac{R_a}{R_b} ) increases, the duty cycle decreases, resulting in a shorter high time relative to the low time, and vice versa. Adjusting these resistors allows for fine-tuning of the output waveform’s duty cycle.
What is the duty cycle for a periodic digital waveform which has a frequancy of10kHz and a pulse width of 66microsecond?
The duty cycle of a periodic digital waveform is calculated using the formula: Duty Cycle (%) = (Pulse Width / Period) × 100. The period (T) for a frequency of 10 kHz is 1 / 10,000 Hz = 0.0001 seconds or 100 microseconds. Therefore, the duty cycle is (66 microseconds / 100 microseconds) × 100 = 66%.
Where does the intelligence reside in a PWM signal?
The intelligence in a Pulse Width Modulation (PWM) signal resides in the duty cycle, which is the ratio of the "on" time to the total period of the signal. By varying the duty cycle, the effective voltage and power delivered to a load can be controlled, allowing for tasks like motor speed control or LED brightness adjustment. The frequency of the PWM signal is also important, as it determines how quickly the changes occur and can affect the response of the system being controlled.
What is a service factor of an equipment?
The service factor of equipment is a multiplier used to determine the capacity and performance of a machine under varying conditions. It indicates the maximum load that the equipment can handle safely beyond its rated capacity, often accounting for factors like duty cycle, environmental conditions, and operational use. A higher service factor typically allows for greater reliability and longevity of the equipment in demanding applications.
What is the deduction of crane ratings in duty cycle?
50%
S1 duty cycle?
S1 duty cycle for an electric motor means the motor is configured for continuous running, which means the motor runs long enough to come to full temperature and then rest long enough to fully cool before starting operation again.
What is crane engine?
An engine specifically designed or adapted to Cranes. One such model is a Big Cummins Diesel that has twelve cylinders and is rated at 635 maybe 685 HP and is available standard on certain marques and models of heavy-duty crane. with a 200 foot boom, l50 ton lifts are well within the duty cycle!
What is Duty cycle in digital logic?
duty cycle is the total on peeriod in one complete cycle.
What does the meaning of rated duty S2-30?
Rated duty S2-30 refers to a specific classification for electric motors. It indicates that the motor is designed for short-term operation with a maximum running time of 30 minutes, followed by a cooling period. This duty cycle is typically used for applications that require high starting torque or intermittent operation. The "S2" designation means the motor can handle this specific duty cycle without overheating or damaging the components.
What is the Definition of continious duty motor?
A continuous duty motor is one which is never turned off.
What is full load current of 20 HP induction motor in delta?
480V about 20A 240V about 40A look at the nameplate duty cycle and efficiencies vary
Are excise taxes included in the duty for an imported crane from Canada?
Very unlikely.
What is a welder's duty cycle?
The terminology in the electrical trade as to duty cycle refers to the amount of "on time" as to the "off time". When referring to equipment that have a high current on time, it is usually using components or wire that are sized smaller than what they should be and can not cool themselves.These components can not dissipate the heat generated quick enough and can only be on for a certain amount of time. This type of equipment is given a duty cycle. The duty cycle has to have an equal or greater off time to let the equipment cool down. It is this ratio of "on time" to "off time" that is the equipment's duty cycle.For example, motors due to their design usually have a 100% duty cycle, meaning that the motor can operate continuously without having to be shut down to allow it to cool off.
What is the difference between the pulse width and the duty cycle of an injector?
Pulse width is the time in milliseconds that the injector is energized, the duty cycle is the percentage of on-time to total cycle time
What is the duty cycle of magnet?
The duty cycle of a magnet typically refers to the proportion of time a magnet is actively engaged in a magnetic field versus the time it is not. In applications like electromagnetic devices, the duty cycle can significantly impact performance, as a higher duty cycle means the magnet is on for a longer period, which can lead to heat buildup and efficiency changes. In contrast, permanent magnets maintain their magnetic field continuously, so the concept of duty cycle is more relevant to electromagnets. Understanding the duty cycle is crucial for optimizing the operation of devices that rely on magnetic fields.
How does ratio Ra Rb affect the duty cycle of an as table 555 timer?
In an astable 555 timer configuration, the duty cycle is influenced by the ratio of resistors Ra and Rb. The duty cycle can be calculated using the formula ( \text{Duty Cycle} = \frac{R_b}{R_a + 2R_b} \times 100%). As the ratio ( \frac{R_a}{R_b} ) increases, the duty cycle decreases, resulting in a shorter high time relative to the low time, and vice versa. Adjusting these resistors allows for fine-tuning of the output waveform’s duty cycle.
