The tefc electric motor is manufactured according to the coal industry standard MT/T575 “Flameproof triple phase asynchronous motor for YBRB series pumping station” and the enterprise standard Q/NF252 “Technical conditions for flameproof three-phase asynchronous motor for YBRB series emulsion pump”. It is used to match domestic and imported pumping stations respectively.
The flameproof performance of the motor is made into flameproof type according to the provisions of GB3836.1-2000 “Electrical equipment for explosive gas environment Part 1: General requirements” and GB3836.2-2000 “Electrical equipment for explosive gas environment Part 2: Flameproof type “d”", and its explosion-proof mark is “Ex”. It is suitable for places where explosive gas mixtures of methane or coal dust exist.
Frequently Asked Questions
Q1: Which standards are followed during the manufacture of this tefc motor?
The motor is manufactured according to the coal industry standard MT/T575 (Flameproof triple phase asynchronous motor for YBRB series pumping station) and the enterprise standard Q/NF252 (Technical conditions for flameproof three-phase asynchronous motor for YBRB series emulsion pump).
Q2: Where is this flameproof motor designed to be used?
It features an explosion protection mark of "Ex" and is designed to operate safely in environments where explosive gas mixtures of methane or coal dust are present.
Q3: What are the cooling and protection levels of this electric motor?
The cooling method is IC411 (self-fan cooling). It has a protection level of IP55 for both the main housing and the terminal box.
Q4: What material is the main motor housing constructed from?
The main housing is constructed from steel plate which offers high impact and collision resistance. Other housing components are built using gray cast iron or steel plate not less than HT250.
Q5: What insulation and rotor specifications does the motor feature?
The motor utilizes an F or H grade insulation system that undergoes special thermal stability treatments. The rotor is designed with a cast aluminum structure ensuring low vibration, smooth running, and low noise.
Q6: What bearing features are integrated into this motor?
The motor utilizes high-quality rolling bearings from well-known brands, integrated with non-stop injection and oil discharge devices for continuous operation.
NANFANG
