Hi Everyone,
I need a low cost method to indicate rotary position of a cable winch drum. The wiring distance will be approximately 150 ft from the operator's station to the equipment. I am thinking about a simple series circuit just using a 24VDC power supply, fixed resistor, and linear pot...
I have a 3hp 1800Rpm 28amp 115VAC slip-ring type motor that I believe is a universal motor (3 wires marked CW, CCW and unmarked, no caps required, speed is proportional to voltage.) Nameplate says DYNA motor corp, Dayton Ohio.
This motor was un-earthed from the obsolete motor bin. My guess is...
Hi
Most posts regarding the performance of 50hz motors running on 60hz power and vice/versa have been concerned with the most important motor characteristics such as motor speed, torque output and efficiency.
I would like to know the effect on no-load CURRENT when the voltage is the same but...
I need to design a control circuit and specify the components required for 5-step magnetic type starting of a wound rotor crane motor. The application is 380V 5HP 1500RPM. Could someone suggest a reference for calculations/conventions of wound rotor motor starting?
Does anyone have a good reference for practical wiring design in Class 1 and 2 hazardous locations? The NEC can be vague, incomplete and subject to multiple interpretations. Specifically, my questions are related to the controls of material handling equipment in which flexible cord is required...
I am trying to calculate the internal temp of an enclosure. If I use a 120vac/24vdc 25 watt(full rated capacity) power supply, but only use 100mA of the available output current, how much heat will be radiated from the supply.
How do I specify the required temp differential on anti-condensation heater for an outdoor enclosure for a design ambient temp of -26 to +50 deg C. The only design info I have found is the statement "temp differential between enclosure interior and ambient must be at least +10 degrees to...
I'm using a low cost VFD in a hoist application. I am controling the drive with some small ice-cube (120vac) relays. I need to eliminate any potential noise from the relay's coil. How do you size the R and C?
thanks in advance.
