Siemens Beide YBF main shaft ventilation special high-voltage flameproof motor
Product overview: YBF series large-scale main fan counter-rotating fan special motor is a matching product specially designed for the current domestic high-power FBCDZ series counter-rotating main fan fan. The new structure of the inner-slot circulating air path of the chip plus the H500 and above adopts the built-in pipeline (air/air cooling) structure, the stator winding adopts the VPI whole immersion process, and the cast aluminum rotor and the copper cage rotor all adopt the shrink-fit process, and the motor is equipped with There are 6 winding temperature measuring elements (Pt100) (three in use and three spare), and 2 bearing temperature measuring elements (Pt100) (one at the front and the other), these measures improve the reliability and life of the motor.
YBF series large-scale main fan counter-rotating fan special motor is a matching product specially designed for the current domestic high-power FBCDZ series counter-rotating main fan fan. The new structure of the inner groove circulating air path, the cooling of H500 and above adopts the built-in pipeline (air/air cooling) structure, the stator winding adopts the VPI whole immersion process, whether it is the cast aluminum rotor or the copper cage rotor, the heat sleeve technology is adopted, and the motor is equipped with winding temperature measurement There are 6 components (Pt100) (3 in use and 3 spares), and 2 bearing temperature measuring components (Pt100) (one at the front and one at the front). These measures improve the reliability and life of the motor.
Technical data at a glance
Frame No.: H450～900
Rated voltage: 380V, 660V, 6kV, 10kV
Power range: 160～2000kW
Protection class: IP54
Insulation class: F
Cooling method: IC411, IC511
Explosion-proof type: ExdI
Compared with the previous YBF series motors, this product has the following advantages:
1. The bearing adopts a four-bearing combination structure with independent intellectual property rights. This bearing structure has strong bearing capacity and anti-shock vibration ability, and has a good self-aligning function, which can eliminate the interference caused by system deflection and misalignment. force. This structure fundamentally solves the problem of short service life of the counter-cyclone bearing, and is a special bearing structure for large-scale counter-cyclone fans.
2. The bearing is forcedly lubricated with thin oil, so that the bearing always maintains a good lubrication state, cooling state and clean state, which further improves the reliability of the bearing operation and greatly reduces the maintenance workload of the motor.
The variable frequency motor cooling system adopts forced air cooling, which ensures the cooling air volume of the motor running at various speeds. The product also has a reliable insulation treatment for the bearing, and a rotor shaft current extraction device is added to avoid the damage of the shaft current to the bearing.
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