Continuous Running Duty Cycle(Type S1): In this duty cycle state, motors are designed for a long run without stopping or resting for a long period of time. This duty cycle allows the machine to achieve the state of thermal equilibrium, exerting a constant load for a specific period.

Dec 11, 2017 · Continuous running duty (type S1) For a motor suitable to this duty type, the rating at which the machine may be operated for an unlimited period is specified. This class of rating corresponds to the duty type whose appropriate abbreviation is S1.

The eight - S1 - S8 - IEC duty cycles of operating electrical motors. IEC (the International Electrotechnical Commission) uses eight duty cycle designations to describe electrical motors operating conditions:

Dec 12, 2011 · 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.

Jul 7, 2023 · 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.

Duty Cycles Descriptions; 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.

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.

Jan 26, 2024 · What Are Motor Duty Cycle? The most common type of motor duty cycle is a continuous-duty motor and is denoted by S1. S1 Type duty induction motors Operate at a constant load for a longer duration so that it reaches thermal equilibrium. Another type of motor duty cycle is a short-time duty cycle.

S1 duty motor The s1 duty defined as the load that may be carried by the machine for an indefinite time without the temperature rise of any part exceeding the maximum permissible value. Actually the motor runs 24 X 7 without resting and the cooling accessories also must run with motor., Ex pumps, Fans etc.

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 periodic duty