BP1-506 / 6306 high precision frequency sensitive rheostat hard Shandong lied appliances

BP1 series of frequency sensitive rheostat First, use? The series of frequency sensitive rheostat as 50 Hz three-phase AC line volume capacity from 22-2240 kilowatts motor starting, reverse purposes. (1) according to the core thickness of different categories:??? ?? BP1-000 (0 core) ?? BP1-200 (2 cores) BP1-300 (3 core) ????? ?? BP1-400 (4 core) ???? ??? BP1-500 (5 号 core) (2) Press the start load by type: occasionally start, repeated start short-time working. BP1-200, BP1-300 is suitable for the occasional start of transmission equipment, such as pumps, container presses, rolling mills, sawing, belts, and other mining capacity from 22-2240 kilowatts. BP1-000, BP1-400, BP1-500 type suitable for repeated short-time working transmission equipment, such as a roller, Pusher, lifts, overhead crane capacity size trucks from 2.2 to 125 kilowatts. Second, the working conditions? (1) no more than 1000 meters above sea level. (2) The ambient temperature is not higher than + 40 ℃ and no less than -30 ℃. (3) air relative humidity less than 80% (20 ℃ ± 5 ℃ when). (4) the absence of explosive medium, and not enough to corrode and destroy insulation of gas and conductive dust. (5) with anti-snow equipment and where there is no full steam. (6) absence of severe vibration and shock. ? Third, the structure? Varistor is a non-contact electromagnetic component, equivalent to an equivalent impedance. In the motor starting process, because the equivalent impedance decreases with the rotor current frequency drop automatically (automatic variable resistance) level rheostat so only it can start up the motor smoothly. ? Rheostat is essentially a large core loss of a three-phase reactor. It is composed of two main parts, the core and coil from several steel folded sheet of Yamagata. Varistors are made of open type. ?? Fourth, technical performance light-load starting, transmission equipment without load or with a light load, starting load factor starting torque coefficient μc = 0.1-0.5 μg = 0.7 during start-up; rotor starting current coefficient i2g = 1.25-1.6. Starting time is generally less than 20 seconds. Such as air compressors, pumps, etc. ? Heavy Light-load starting: two cases, one is the transmission equipment during starting, its drag torque with the speed of the rise and fall, a larger moment of resistance when starting, (μg = 0.5-0.8); starting torque μg = 0.1; rotor starting current coefficient i2g = 1.6-2.0. Starting time greater than 20 seconds. For example, a motor with a flywheel rolling mill drive. Another case is the transmission equipment in the Chi moving process with a load or with a slight load resistance torque small, generally bulky body, and high-speed operation are translated to the motor shaft greater moment of inertia, the starting time is often more than two seconds. The rheostat allows several consecutive start, but the starting time for the total light load should not exceed 80 seconds. For re-light or heavy duty shall not exceed 120 seconds. ? BP1 frequency sensitive rheostat appearance and installation dimensions?