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These motors are sometimes called DC motors, sometimes EC motors and occasionally DC/EC motors. DC stands for direct current and EC stands for electronically commutated.. DC motors allow the speed of the fans within a fan coil unit to be controlled by means of a 0-10 Volt input control signal to the motor/s, the transformers and speed switches associated with AC fan coils are not required.
A BAe 146 flying testbed will have one of its four turbofans replaced by a 2 MW (2,700 hp) electric motor, with provisions to replace a second turbofan.Airbus will build the control architecture and integrate the systems, Rolls-Royce will adapt the Siemens motor and the fan to the existing nacelle, bring the turboshaft, generator and power electronics and Siemens the electric motor and its ...
An external fan blows outside air over the frame of the motor to cool it. This motor is arguably the most commonly used motor in ordinary industrial environments. TEFC enclosed motors usually cost more than open motors, but offer increased protection against weather, dirt, and moisture. TEFC motors are constructed with a small fan on the rear ...
An induction motor or asynchronous motor is an AC electric motor in which the electric current in the rotor that produces torque is obtained by electromagnetic induction from the magnetic field of the stator winding. [1] An induction motor therefore needs no electrical connections to the rotor.
F – 12.6 V DC parallel heater for 6-cell lead-acid vehicle crank batteries; G – Various heaters between 2.5 and 5.0 V AC (except 4 V) from a separate heater winding on a mains or horizontal-output transformer for the anode voltage rectifier; H – 150 mA AC/DC series heater
Electric fan heater. A fan heater, also called a blow heater, is a heater that works by using a fan to pass air over a heat source (e.g. a heating element). [1] This heats up the air, which then leaves the heater, warming up the surrounding room. They can heat an enclosed space such as a room faster than a heater without a fan, [2] but like any ...
A brushless DC electric motor (BLDC), also known as an electronically commutated motor, is a synchronous motor using a direct current (DC) electric power supply. It uses an electronic controller to switch DC currents to the motor windings producing magnetic fields that effectively rotate in space and which the permanent magnet rotor follows.
The AEV 3 Kodiak offered by Rheinmetall is a current generation military engineering vehicle; it is built on the base of the Leopard 2 MBT. The EBG combat engineering vehicle, based on the AMX 30 tank, is used by the engineers of the French Army. BAT-M engineering vehicle of Russia and the former Soviet Union