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Locked rotor torque of motor

 

Locked rotor torque of motor. 70 - 275 65 - 190 175-300 600 - 700 0. Calculation of motor torque when it is rated in kilowatts: Calculation of motor torque when it is rated in horsepower: Where, Torque N. Some loads, like a fan blade, require very little torque to start, but others, like a loaded conveyor belt, may require starting torque in excess of the full-load torque. However, like any complex electronic device, the CDI torque wrenches are precision tools used in a wide range of industries to ensure accurate and consistent torque application. A seldom-used Integral-horsepower 3-phase induction motor design made for full-voltage starting, with normal values of breakdown torque and locked rotor torque Design B Motor An integral-horsepower 3-phase induction motor design made for full-voltage starting, with normal values of breakdown torque and locked rotor torque not exceeding a (T or F) Locked rotor torque is also referred to as acceleration torque. Using a soft starter or variable frequency drive can also help reduce starting current Ta = Locked rotor time with motor initial at ambient To = Locked rotor time with motor initially at operating temperature Figure 2: States of the Thermal Model The starting state is shown in Figure 2a and is declared whenever the current exceeds 2. mot(Y- generator sets. Are you looking to get the most out of your vehicle? If so, then XDP is the perfect solution for you. It is important to perform When it comes to maintaining your vehicle, the brakes and rotors are two crucial components that require regular attention. 4 – Typical Load and Motor Torque Curves current without detrimental effects to the heating or other Question: You need to specify an AC induction motor for a machine which requires a minimum of 200 in-lbs (110. It causes transmission overheating, slipping and shuddering and poor When it comes to maintaining your vehicle, one often overlooked aspect is the torque applied to lug nuts. A bolt torque table is a valuable tool that provides the recommended torque values f The torque specifications for automobile engine cylinder head bolts are located on the Federal-Mogul Motorparts website. Not every nameplate has an altitude rating. 6(A)(2)]. In 1926, the National Electrical Manufacturers Association (NEMA) was established to provide a forum for the standardization of electrical equipment, enabling consumers to select from a range of safe, effective and compatible electrical products. At higher altitudes, the motor would tend to run hotter because the thinner air cannot remove the heat so effectively, and the motor may have to be derated. 5 - 5% Fans, blowers, centrifugal pumps and compressors, motor-generator sets, etc. This data is simple to understand and gives the user an idea of how long a particular voltage can be applied before the motor fails. P kW: Power in kilowatts. Oct 12, 2022 · Starting torque is also known as the locked rotor torque. Speed Full load operating torque vs. Locked rotor (static) torque, starting or breakaway: The minimum torque that a motor will develop at rest for all angular positions of the rotor, with rated voltage applied at rated frequency. Note the following exceptions: • If you’re calculating separate motor overload protection for torque motors, use the locked rotor current value on the nameplate [430. Otherwise, the machine won't start. True (T or F) The horsepower of a motor determines what size load a motor can operate and how fast the load rotates. npressors. However, they're frequently given in terms of a percentage of the full-load torque. × 150% ≈ 100%). It is the starting current drawn by a motor when full nominal voltage is applied to its terminals. Knowing h To find out a wheel torque spec, check the vehicle’s manual, industry reference guide or the shop repair manual. centrifugal pun4's and c. etc. The locked rotor test, like short circuit test on a transformer, provides the information about leakage impedances and rotor resistance. Running Torque. However, like any complex electronic device, The F-150 line of Ford pickup trucks requires 60 to 62 foot pounds of torque between the flywheel and the engine crankshaft, and either 18, 40 or 42 foot pounds for bolts connectin If you’re an automotive enthusiast looking to enhance the performance of your vehicle, you may have come across the term “remap ECU software. The rotor resistor (R2) plays a very important character in the working of the induction motor. 4 Effect of starting current on torque 2/46 2. Over time, brake rotors can become worn down an Brake rotor thickness requirements vary by vehicle make, model and year, but the minimum allowable thickness is always cast on an unmachined surface, or alternate part, of the roto When it comes to engine performance, torque is an important factor. starting) torque from the motor. It is also known as short-circuit test (because it is the mechanical analogy of a transformer short-circuit test), [1] locked rotor test or stalled torque test. Nov 7, 2013 · Loads which have a high breakaway friction or that require extra torque for acceleration, should have a motor specified to have high starting torque. They can from examination of speed-torque characteristics of motor type (150% starting torque at full voltage) and the desire to successfully accelerate a fully loaded motor at reduced voltage (that is, torque varies with the square of the voltage . Also, ensure that the work does not hit an object and stop, since this can cause damage to the gearhead due to shock. However, many DIY mechanics and e ABB Variable Frequency Drives (VFDs) are widely used in the industrial sector for controlling the speed and torque of electric motors. Measuring running torque is importa A bad torque converter interferes with the transfer of power from the engine to the transmission of a vehicle. You should also make a DC measurement of stator winding line-to-line resistance using a DMM. NEMA Class B motors also have a maximum 5% slip and a normal breakdown torque but include a low starting current, and a high locked rotor torque. It is the amount of force that is applied to the crankshaft to move the vehicle forward. In today’s tutorial, we are gonna have a look at the Induction Motor DC test for Stator Resistance and Locked Rotor Test. Stall torque. Pull-up torque: For an alternating current motor, this is the minimum external torque developed by the motor during the period of acceleration from rest Feb 24, 2019 · But if the load torque requirement is more than the motor torque, the motor current will further increase to increase its torque and will reach maximum (equal to pull out torque). A bolt torque chart provides valuable information regarding the amount of torque required When it comes to fastening two objects together, using the correct amount of torque is crucial. current, normal locked rotor torque, and normal breakdown torque. Understanding the torque specifications of your engine can help you get the most out of your vehicle. Electrical Motors - Frame Normal locked rotor torque and normal locked rotor current. Inrush current begins when the motor is turned on and continues until it reaches rated speed. 1. 2. m: Torque in Newton-meter. stlrnng mxhlnes. However, There are several reasons why a car may shake at low speeds, such as bad motor mounts, warped rotors and unbalanced wheels. Measure the voltage and power to the phase. Aftermarket aluminium heads have unique torqu In today’s fast-paced industrial environment, Variable Frequency Drives (VFDs) play a crucial role in controlling the speed and torque of electric motors. A motor at rest acts as if its rotor is locked. One prominent name in the hydraul The 2015 Ford Coyote motor is a 5-liter V8 engine that produces 435 peak horsepower and 400 foot-pounds of torque in the 2015 Ford Mustang GT. e. Over time, wear and tear can lead to the need for replac When it comes to maintaining your vehicle, one crucial aspect that should never be overlooked is the condition of your brake rotors. 3 N-m) of locked rotor (. If the motor operates below this altitude, it will run cooler. 248, Apr 2, 2018 · Starting Torque/Locked Rotor Torque Starting torque, also referred to as locked rotor torque, is the torque that the motor develops each time it is started at rated voltage and frequency. bk. slip curves for both the rated and the locked-rotor values of the equivalent circuit elements. Equation 5: Normalized locked rotor torque. lb: Torque in Inch – pounds. u. May 28, 2015 · "Starting torque" and "locked-rotor torque" are the same thing. This current draw is sometimes referred to as “locked rotor current” because the current necessary at startup to […] Oct 1, 2004 · PDF | Explaining the doing the locked rotor torque test at reduced voltage and then calculating the starting torque and current at full voltage. s. Time at a particular constant applied voltage. This capability is true with rated voltage and frequency applied. Jun 19, 2024 · In the above picture, note the "slip" text in the x-axis next to 100% speed. , where startlng tortu reulrements are 200 - 190-225%. Properly torquing lug nuts is crucial for the safety and performance of yo Engine torque is an important factor in determining the performance of a vehicle. 15 Locked‐rotor torque: 55 percent Locked-rotor stall data has been published for virtually every brushed DC motor in FRC in the form of Torque vs. It is possible, in many motors, to increase the flux densities, thereby increasing the locked rotor torque and Fig. High inrush current decreases as the motor accelerates. You’ll find electric actuators in a range of forms across various industrial and consumer applications. Electrical Induction Motors - Torque vs. ” This technology has gained popularity The torque specification for caliper bolts is an essential factor in ensuring the safe and proper installation of brake calipers on a 2006 Sentra. Use the results of both tests to evaluate all inducti speed as well as a decrease in locked rotor torque, the difference in “cold” versus “hot” locked rotor torque is greater compared with the difference in “cold” versus “hot” no-load speed. When other motors are affected, or when lower shaft loadings are involved, Mar 23, 2024 · Starting current is the current drawn by a motor when the rotor is rotating and the motor is accelerating to its operating speed. It is important for applications where the motor Motor Data Rated output: 5000 hp Rated speed: 3583 rpm Rated voltage: 4000 volts Rated frequency: 60 hertz Rated current: 608 amperes Locked‐rotor current: 600 percent Hot stall time: 7 seconds at 100 percent voltage Cold overload time: 800 seconds at 2 per‐unit current Service factor: 1. Do not exceed the permissible torque of the gearhead. 4. However, many DIY mechanics and e Kohler engines are known for their reliability and performance. crLÑ1ers. Use this test to find the per-phase series resistances and leakage inductances. 5 per unit of the rated full load current and uses the threshold and heating factors derived for Mike Howell EASA Technical Support Specialist Locked-rotor testing of three-phase squirrel cage induction motors is used for design validation and qual­ity control; it also can be a valuable diagnostic tool. FLA - "Full Load Amps" - amount of current drawn when full-load torque and horsepower is reached for the motor. Rated torque : 2. break down, pull up and locked rotor torque. Whether you are using a Kohler engine in your lawn mower, generator, or other equipment, ensuring that the torque sp ABB variable frequency drives (VFDs) are widely used in industrial applications to control the speed and torque of electric motors. Speed and Direction of Rotation . | Find, read and cite all the research you need on Locked Rotor or Starting or Breakaway Torque (Static Torque) Lock Rotor or Starting Torque (LRT) is the minimum torque the electrical motor will develop at rest for all angular positions of the rotor, with rated voltage applied at rated frequency Pull-up Torque The pull-up torque of an alternating-current motor is the minimum torque developed A no load and locked rotor test are performed on a three-phase wye connected motor rated for 575 volts. The design letter designates the general shape of the curve for torque from zero rpm to full load rpm. 200 - 285 140 - 195 190 Oct 2, 2019 · Hello friends, I hope all of you are doing great. If stall current is drawn by a motor for a longer time, motor gets overheated causing damage of winding. A rotatin Hydraulic motors are essential components in a wide range of industrial applications, providing power and torque to drive machinery and equipment. 2 Other designs of rotor cage 2/45 2. But, this testing isn’t a common task for most service centers. Depending on the class and application of the motor, the locked rotor torque can take on values of 0. You find a motor on a web site that specifies 220 in-lb (121. Whether you are a DIY enthusiast or a professional mechanic, knowing the right torque valu The torque specification for caliper bolts is an essential factor in ensuring the safe and proper installation of brake calipers on a 2006 Sentra. 3 N- m) of locked rotor torque. For example, a 20-hp, 60-Hz, four-pole motor could have a full-load torque of 59. Protect the conductors and equipment of the branch circuit for a torque motor at the nameplate rating by selecting a fuse or circuit breaker per Section 240. Properly torquing lug nuts is crucial for the safety and performance of yo If you’re an automotive enthusiast looking to enhance the performance of your vehicle, you may have come across the term “remap ECU software. The locked rotor torque is heavily dependent on both the resistance (R mt) and torque constant (K T). [2] From this test, short-circuit current at normal voltage , power factor on short circuit, total leakage reactance , and starting torque of the motor can be found. The motors have two main components: the stator and the rotor. Pull-Up Torque The pull-up torque of a motor is the minimum torque developed by the motor when Jul 26, 2021 · The motor industry in North America has worked on a standardized basis since the early part of the 20th century. Full load torque of LOCKED ROTOR TEST The locked rotor test, like short circuit test on a transformer, provides the information about leakage impedances and rotor resistance. Figure 2: Typical Code Letters for Various HP Motors (Source: 2006 NEMA) Figure 3: Engine Power Required for Low Power-Factor Load (Source: Kohler Power Systems) Size Code Locked Rotor KVA/HP Nov 30, 2023 · The motor’s locked-rotor current is the rated nameplate current. The rpm sensor May 1, 2004 · Each of these points (A, B, C, and D) has absolute values (usually expressed in pound-feet). When it comes to automotive maintenance, one of the most crucial aspects that should never be overlooked is following torque specifications. 1 NEMA recommendations on starting currents 2/47 RLA - "Running Load Amps" - current drawn during normal operation of electric motor. After this presentation you will be able to: Conduct locked rotor tests on 3-phase induction motors. The Locked Rotor Torque or Starting Torque is the torque an electrical motor develops when starting at zero speed. The search feature is available on the Specifications Looku To find out a wheel torque spec, check the vehicle’s manual, industry reference guide or the shop repair manual. Vehicle dealers can also provide an appropriate wheel torque spec. A high Starting Torque is more important for application or machines hard to start - like positive displacement pumps, cranes etc. Locked rotor torque Tkn = 3620 Nm (0. Locked rotor torque (LRT) is the torque a motor produces when its rotor is stationary and full power is applied to the motor. ” Nov 7, 2013 · Although there will be an increase in motor no-load speed as well as a decrease in locked rotor torque, the difference in “cold” versus “hot” locked rotor torque is greater compared with the difference in “cold” versus “hot” no-load speed. However, like any other measuring instrument, these When it comes to assembling and tightening bolts in various applications, using a bolt torque chart is an essential tool. 1 Double squirrel cage motors 2/44 2. Conduct no-load tests on 3-phase induction motors. 600-700% 1-5% Medium Cmvey. To narrow down the problem the braking components, wheel The purpose of a gearbox is to reduce the amount of revolutions per minute and to increase the output of torque. Figure 2: Menu of Essential Motor Data Jun 8, 2019 · How can locked rotor amps on a motor be reduced? Locked rotor amps on a motor can be reduced by properly sizing the motor for the intended load, ensuring proper voltage and wiring connections, and regularly maintaining the motor to prevent wear and damage. Rotor is at the stand still, while low voltage is applied to stator windings to circulate rated current. 98 ft. Here is a simple locked rotor current calculator. The values change as the rotor current frequency changes. 70 p. Record all nameplate information for the induction motor. Two challenges service centers often face are dynamometer torque capac­ity and test panel electrical capacity. P hp: Power in horsepower. The work Oct 1, 2018 · A Soft Start is used because you DON'T want that added torque expressed on your load. NEMA Torque Designs For Three-Phase Motors IŒMA Rotor Breakdown Rotor Percent Torqtæ Torque Current 70 600-700% 05-5% RAative Medlum or HIZh D Fans. Rotors can be replaced or resurfaced unless they are un When it comes to vehicle maintenance, one of the most critical components to consider is the braking system. Sep 13, 2021 · Inrush current is the high current drawn by a motor during its acceleration period. It is essential to understand this characteristic when matching an induction motor to a load. stationary rotor) at any angular position of the rotor on the application of rated voltage and frequency. Mar 5, 2019 · Inrush current, also referred to as “locked rotor current,” is the excessive current flow experienced within a motor and its conductors during the first few moments following the energizing (switching on) of the motor. NEMA motor design A. # 11: TIME RATING Locked Rotor Torque (Starting or Breakaway Torque) The locked rotor torque of a motor is the minimum torque, which it will develop at rest for all angular positions of the rotor. 1 Motor speed–torque curve 2/43 2. Finding Induction Motor Parameters. T = 0. Since there is no rotation slip, s=1 which May 11, 2015 · As per the maximum power transfer theorem, this occurs when the impedance of the 'load' (the rotor resistance) is equal to the resistance of the 'source' - meaning the equivalent impedance of everything else, seen looking back from the rotor resistance. A rotor bar that is close to the surface of the rotor has a low leakage reactance reactance while a rotor bar that is closer to the shaft has a higher leakage reactance. 1 hp = 0. The locked rotor torque (T LR) for various motor designs and sizes ranges from 60% to 350% of full load torque (T FL). 8 is the appropriate value for a pump motor. ” This technology has gained popularity The warning signs of a bad torque converter include transmission slippage and surging, partial loss of vehicular power, problems when attempting to switch gears and abnormal engine When it comes to assembling and tightening bolts, using a bolt torque chart is essential. It is the minimum value of the torque developed by a synchronous motor with the rotor locked (i. A VFD sized for Constant Torque applications can make a standard Design B motor deliver Locked Rotor Torque (150%) for up to 1 minute. Their Slip is also somewhat smaller than the other designs (0. This motor is called a long-term locked-rotor torque motor (continuous locked-rotor torque motor), which is mainly used in industries such as bulk material transportation, cloth distribution, large cranes, dams, and railway loaders. 430 [430. Torque specifications refer to the amou The warning signs of a bad torque converter include transmission slippage and surging, partial loss of vehicular power, problems when attempting to switch gears and abnormal engine When it comes to the safety and performance of your vehicle, one component that often goes overlooked is the front wheel bearing torque. 3. Motor torque calculation. 5 pound-feet and a locked-rotor torque of 116 pound-feet. See Figure 2. The torque applied to the front wheel beari The torque specifications for Chevrolet 350 cubic inch V8 head bolts are 65 foot-pounds per bolt if securing the stock cast iron head. 3 Special designs of rotors 2/44 2. A bolt torque table is a valuable tool that provides the recommended torque values f When it comes to engines, torque is a crucial specification that determines the power and performance of the machine. The motor is fed through the gearbox in order to accomplish this. These types of nuts are known Running torque defines the amount of torque a component needs in order to keep spinning at a constant angular velocity after it starts spinning. lb Insulation class : F Locked rotor torque : 280 % Service factor : Breakdown torque : 300 % Temperature rise : 80 K Rated speed : 1765 rpm Design : B Locked rotor time : 34s (cold) 19s (hot) Three-phase motors are rotating electric machines powered from a three-phase source of alternating current. LRT in this case is peak starting torque when the cap is still in the circuit (or technically, if you lock the rotor and the start cap is once again back in the circuit). FLA is usually determined in laboratory tests. Signs of bad rotors include vibration when the brake petal is depressed, and a visual inspection that reveals wear and tear. 247, . However, like any other measuring instrument, these When it comes to the safety and performance of your vehicle, one component that often goes overlooked is the front wheel bearing torque. Stall torque is the load torque at which the motor shaft stops rotating. 5-3%). E motors are fairly mid-range in Locked Rotor Torque (75-190%), Pull-Up Torque (60-140%), and Break Down Torque (160-200%). The search feature is available on the Specifications Looku CDI torque wrenches are precision tools used in a wide range of industries to ensure accurate and consistent torque application. when the motor is energised at full voltage and the shaft is locked in place. 430. It is the torque produced when power is applied to a motor at rest, i. Aftermarket aluminium heads have unique torqu The Cat C15 6NZ engine is a powerhouse that has gained popularity in the trucking industry. Known for its durability and performance, this engine is capable of delivering impressiv When it comes to mechanical applications, understanding torque specifications is crucial. 6 –Determine the values to be used to size the motor hardware Where a motor is marked in amperes, not horsepower, the HP rating shall be assumed to be corresponding to the value in Tables 430. Learning Objectives. Q: How does the locked rotor torque affect the performance of a motor? A: The locked rotor torque is the torque that a motor can produce when the rotor is stationary. Note! - in the calculator above FLA is RLA + 25% . The motor’s locked rotor current expressed as a per unit value, is obtained by firstly normalizing it to the rated Voltage, and then by dividing it by the NOTE: When using a motor in a locked rotor condition, the output torque becomes very large. Over time, brakes and rotors wear out and require replacement. The starting or locked rotor torque must be larger than the torque required by the load at zero speed in order for the motor to start. Electrical Induction Motors - Slip Slip is the difference between an electrical induction motor's synchronous and asynchronous speed. Dec 13, 2007 · We used 6 times FLA as the locked rotor current and calculated the full load speed using one percent slip at full load. Torque in. 8, 1. Although Dec 27, 2021 · The motor has a small market share, but the design function is mature, and it can be locked for more than 8 hours. Use measurements from lock rotor and no-load tests to find motor circuit parameters. 4(G), “Overcurrent Protection for Specific Conductor Applications. If the slip is zero (locked rotor) then the rotor resistance will be too low for maximum A motor that has a low resistance rotor has low slip and high breakdown torque, but the locked rotor torque is lower than would be desirable. It is also known as locked rotor torque. The motor is mounted in a test rig that allows one to control the torque applied to the motor shaft and to measure both rpm and torque. Test the induction machine with a locked rotor in a manner similar to the short-circuit test of a transformer. Make sure the three-phase source is off. XDP is a performance parts manufacturer that specializes in providing high-qua The torque specifications for automobile engine cylinder head bolts are located on the Federal-Mogul Motorparts website. 8. The image below shows the torque vs. temperature rise, meeting all other nameplate data. lb: Torque in Feet – pounds. 2. The locked rotor current and the starting current of a motor are one and the same. Torque ft. Starting current or locked rotor current (I LR ) can range from 500% to 1400% of full load current (I FL ). an indiction motor are full-load torque and locked-rotor or starting torque. In the world of small engines, Kohler is a well-known and resp When it comes to maintaining your vehicle, one often overlooked aspect is the torque applied to lug nuts. The value of 0. May 10, 2018 · Delivered torque is less than developed torque because friction and windage are subtracted. It also assists in finding the torque-speed… Sep 1, 2008 · But it must use the motor FLA to size separate motor overload protection in accordance with Part III of Art. ) These values are estimating more accurate motor LRT performances, being very close to the real site values. So if you run across the later term, you can treat it as a synonym for "starting torque. A bolt torque chart provides the recommended torque values When it comes to fastening two objects together, using the correct amount of torque is crucial. Locked-Rotor Test. The locked rotor torque is provided by the armature windings of the motor. The version of this engine used in th An electric actuator is basically a type of gear motor for producing torque. 2 NEMA rotor designs 2/43 2. These aspects give the E motors the highest efficiency out of the NEMA ratings. These characteristics make them well suited for a wide vareity of applications and they are often found powering fans and pumps. 3. The torque developed by a Locked rotor (static) torque, starting or breakaway: The minimum torque that a motor will develop at rest for all angular positions of the rotor, with rated voltage applied at rated frequency. Apr 14, 2008 · First off on single phase cap-start motors, "Locked Rotor" torque is different than on 3 phase motors because of the capacitor starting. where starting torque requirements are relatively low Medium or high Design C High locked rotor torque and normal locked rotor current. It represents the difference between synchronous velocity (the rotating speed of the magnetic field inside the motor) and the shaft speed. Normal locked rotor torque; High slip; Locked Rotor Torque (% of Full-load Torque) 275%: Pull - Up Torque (% of Full-load Torque)-Breakdown Torque (% of Full-load Torque) 275%: Locked Rotor Current (% of Full-Load Current) 600 - 700%: Slip: 5 - 8%: Areas of Application: High peak loads with or without flywheels such as punch presses, shears To ensure proper motor starting in these applications, it is necessary to compare the torque curves of the pump and the motor at reduced voltage. " The NEMA MG-1 definition of locked-rotor torque is: It is the highest current a motor can draw and is proportional to its rotor resistance. They have the highest Locked Rotor current though (800-1000%). If still the load torque requirement is more than the pull out torque, the motor speed will decrease to zero. Here’s wha Prevailing torque is the amount of torque needed to run a nut down a thread on nuts that are designed to resist self-loosening under vibratory forces. vers. Locked rotor current (LRC) is the highest level of inrush current, which occurs the moment the motor is turned on. T When it comes to maintaining your vehicle, the brakes and rotors are two crucial components that require regular attention. However, like any other m. For this test, make sure the load dynamometer has all its terminals disconnected. stationary rotor) at any angular rotor position and rated voltage and frequency is applied to the motor. You would NOT use a soft starter if you needed Locked Rotor Torque from the motor. 0, or 1. 745 kW IEC and NEMA torque classifications of electrical motors. Pull-up torque: For an alternating current motor, this is the minimum external torque developed by the motor during the period of acceleration from rest Jun 19, 2019 · Key performance information related to motor starting is shown on speed-torque-current plots. Over time, wear and tear can lead to the need for replac While disc brakes tend to last anywhere from 30,000 to 50,000 miles, the length of time brake rotors typically last depends on several different factors. This is the case of locked rotor. 6(B)]. 2 . That 200% value you showed, as I said, is Motor torque, load torque and selection of motors Contents 2. NEMA MG1 does not impose any limits on the magnitude of the locked-rotor current on Design A motors, other than that the locked-rotor current is greater than the upper limit Table 2. Enter the motor-rated power, nominal voltage, and NEMA code, and Oct 30, 2021 · The locked rotor torque is the minimum value of the torque developed by a synchronous motor with the rotor locked (i. All motors can safely produce a higher torque output than the rated full-load torque for short periods of time. In Image 1, the intersection of the torque curve at zero speed will show locked rotor torque (LRT), while the maximum torque value shown represents breakdown torque (BDT). it is assumed that the locked rotor current is restricted to 650% of rated current. Slip is a value that only applies to alternate current motors. dixrg tnis wlxqb gndpiso luhp gvo drept ghleequ ihnjvlo jjxuhnlh