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Overview |
1.1 YBZ, YBZS series of explosion-proof three - phase asynchronous motor and YBZE, YBZSE series of explosion-proof electromagnetic brake three-phase asynchronous motor (referred to as the motor) is mainly used for various types of explosion-proof lifting machinery power drive. Has a large overload capacity and high mechanical strength, so it is particularly suitable for those short-term or intermittent operation, frequent start, brake equipment. Motorproof performance consistent with GB3836.2-2000 explosive gas atmospheres electrical equipment Flameproof predetermined second "d", the compartment made of explosive, explosion-proof marking respectively Exdll BT4 and Exdll CT4 two kinds. Applicable to the explosion-proof capacity is not higher than the IIB or IIC level, detonation temperature group for the T1 ~ T4 group of combustible gas or vapor and air to form an explosive mixture of places.
1.2 Degree of protection and cooling of motor
1.2.1Motor housing protection class IP44, according to the need can also be made IP54 , junction box protection class IP54 .
1.2.2Motor cooling method: 112 ~ 132 seat size IC410 ; 160 ~ 250 frame number IC411 .
1.3 Motor insulation class for the F -class and H -class, F -class insulation motor for ambient air temperature does not exceed
40 ℃place, H -class insulation motor for ambient air temperature does not exceed 60 ℃ place.
1.4 The motor is suitable for the following working conditions:
A , ambient air temperature: the general environment for -15 ℃ ~ 40 ℃, metallurgical environment does not exceed 60 ℃;
B , no more than 1000m above sea level ;
C , rated frequency of 50Hz or 60Hz ;
D , rated voltage of 380V or 440V ;
E , frequent start, brake (electrical or mechanical) and reverse;
F , ambient air humidity is not greater than 90% (when 25 ℃).
YBZ series lifting with flameproof three - phase asynchronous motor can be derived on the basis of YBZP series of lifting and metallurgical flameproof frequency conversion three - phase asynchronous motor . Model Description: |
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Working methods and technical data |
2.1 motor for intermittent periodic load, according to the different nature of the load motor operating system is divided into S2, S3, S4, S5 four types of reference work system: single speed S3 40%, two-speed, High speed of S3 25%; low speed of S3 15% (ie S3 work system, load duration were 40%, 25%, 15%, each working cycle of 10min).
2.2 The main technical data of the motor.
2.2.1 Correspondence between the rated power of the motor at the reference working system, the rotor moment of inertia (Jm), the static braking torque (YBZ, YBZS motor without static braking torque) and the frame number are in accordance with Table 2.
2.2.2 Motor in the rated voltage, the reference working system, the maximum torque and stall torque to the rated torque ratio of the guarantee value is not less than Table 3-1 (single speed) and Table 3-2 (two-speed )Provisions.
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1.IM1001 and IM1003 with the bottom of the base, the cover without flange motor YBZ, YBZS112M-250M 