IEC Electric Motor Duty Cycles; S1: Continuous duty: The motor works at a constant load for enough time to reach temperature equilibrium. S2: Short-time duty: The motor works at a constant load, but not long enough to reach temperature equilibrium. The rest periods are long enough for the motor to reach ambient temperature. S3: Intermittent ...

10 different duty cycles of motor are S1, S2, S3, S4, S5, S6, S7, S8, S9, and S10. Asynchronous motors are widely used in households and heavy machinery industries. In this article, we will study different types of load cycles for an asynchronous motor at constant and varying loads with the speed of rotation of the motor. Let’s start!

工作制分为 s1 ~ s10 共10类： 1) 连续工作制---s1。电机在恒定载荷下，运动时间足够达到热稳定。 2) 短时工作制---s2。在恒定负荷下，按照定时运转。该时间不足以使电机达到热稳定，随之即断能停转足够时间，使电机冷却介质温度与再度冷却到之差在2k以内。

2023年7月7日 · Continuous Duty Motor Cycle (S1) The first, and simplest, type of work cycle is continuous duty. This is also referred to by its abbreviated name, S1 duty (Figure 1). In this type of operation, the motor runs with a constant load long enough to reach thermal equilibrium.

2011年12月12日 · To assist in the communication of this information, the standard IEC 60034-1 (Rotating electrical machines) defines several duty characteristics, denoted S1 to S10: The motor operates at a continuous load for sufficient time to enable machine to reach thermal equilibrium.

S1: Continuous duty: The motor works at a constant load for enough time to reach temperature equilibrium. The abbreviation S1: S2: Short-time duty: The motor works at a constant load, but not long enough to reach temperature equilibrium. The rest periods are long enough for the motor to reach ambient temperature.

2024年3月22日 · 电机S1是一种标准的交流异步电动机，具有以下技术特点： (1) 高效：电机S1的效率较高，能够在长时间的工作过程中保持稳定的效率表现。 (2) 低噪音：电机S1启动转矩较小，因此在启动时噪音较小。 (3) 稳定性好：电机S1的散热系统较为完善，能够在长时间的工作过程中保持稳定的温度表现，从而保证了电机的稳定性。 (4) 维护方便：电机S1的维护较为简单，只需要定期清洁和润滑即可。 2. 电机S6的技术特点. 电机S6是一种特殊的交流异步电动机，具有 …

See below the IEC defined Duty Types, called S1 to S10. The definition - graphs showing the load as Power P, the Power Losses, Pv and the associated Temperature / Temperature-Rise of the motor over the time. Continuous running duty . Intermittent periodic duty with electric braking. S2. Short-time duty. S6. Continuous operation periodic duty. S3.

The continuous load is referred to as S1 Duty Cycle. Electric motors can be used at various Duty Cycles, short-term or intermittent (S2, S3, S4, etc.). A higher power output may be achieved whilst used at short-term or intermittent duty.

The first duty cycle S1 is defined as the maximum constant load / torque that allowed even when the motor equilibrium temperature is reached. That means that the S1 duty cycle can be done without time constraint, as the motor may heat up to the …