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Description: Requirements for 60-Hz cylindrical-rotor synchronous generators, except those covered in standard C50.14-1977, are set forth. The standard covers classification, usual service conditions, rating, temperature rise, abnormal conditions, efficiency, overspeed, telephone influence factor,
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Description: Requirements are provided for 60-Hz open-ventilated air-cooled cylindrical-rotor synchronous generators rated 10,000 kVA and above. Classification, service conditions, output rating and capabilities, temperature, abnormal and short-circuit requirements, efficiency, overspeed, telephone
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Supplier: SAE International
Description: the basis of a generalized principle of operation of an electric machine the influence of position and speed data, acquired by a rotary position sensor, is presented with a detailed analysis of various sensor concepts. Therefore the major products used nowadays are presented with a brief
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Supplier: SAE International
Description: Brake squeal is caused by the friction-induced vibration at the rotor/pad interfaces (primary contact interfaces) in a disc brake system. While there have been numerous research work evaluating the influence of primary contact interfaces on brake squeal, few studies can be found on the
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Supplier: SAE International
Description: studies, in which modeled rotor temperatures are compared to in-vehicle measured high energy fade test results. The influence of radial temperature gradients developed in the rotor on cooling behavior representation and on model to vehicle test correlation is also
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Supplier: SAE International
Description: The renewed interest in the fuel efficient and low CO 2 emission CROR (contra-rotating open rotor) propulsion system for future commercial aircrafts has recently led to a series of isolated and installed CROR wind tunnel test campaigns performed in close collaboration between Airbus
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Description: ISO 26867:2009 describes a test procedure for assessing the influence of pressure, temperature, and linear speed on the coefficient of friction of a given friction material in combination with a specific mating component (rotor or drum). ISO 26867:2009 is intended for use when
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Description: ; - characterization of the phenomena covered by this document, including but not limited to inter-blade vortices, draft tube vortices rope and rotor-stator interaction; - demonstration that both operating conditions and Thoma numbers (cavitation conditions) are primary parameters
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Supplier: CSA Group
Description: ISO 26867:2009 describes a test procedure for assessing the influence of pressure, temperature, and linear speed on the coefficient of friction of a given friction material in combination with a specific mating component (rotor or drum). ISO 26867:2009 is intended for use when
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Description: protector is considered an integrated control since its protective functionality is dependent on the correct mounting and fixing in or on a motor and which can only be fully tested in combination with the relevant motor. This dependency is illustrated by: - the ability of the thermal motor
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Supplier: CSA Group
Description: protector is considered an integrated control since its protective functionality is dependent on the correct mounting and fixing in or on a motor and which can only be fully tested in combination with the relevant motor. This dependency is illustrated by: - the ability of the thermal motor
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Supplier: UL Standards & Engagement
Description: motor locked-rotor conditions; thus, reducing the response time and not being adversely affected by heat-sink at the assembly spot in the application; • the influence of the motor's electromagnetic field on the switch behaviour of the THERMAL MOTOR PROTECTOR ; particularly
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through tapered rotor slots are utilized to significantly improve heat dissipation and maintain optimal operating temperatures. 2. Operating Conditions. The thermal performance of a flat BLDC motor is also influenced by its operating (read more)
Browse DC Motors Datasheets for Portescap
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CR4 - Thread: wound rotor motor ?
I performed a rotor influence test by testing inductance across the stator windings and rotating the shaft a few degrees at a time.
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How to Ensure Accurate Motor Circuit Defect Identification
After the anomaly was detected a follow-up work order was written to perform a full set of off-line motor tests, which included a Rotor Influence Test , (also known as a RIC test).
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An Experimental Correlation between Rotor Test and Wind Tunnel Ice Shapes on NACA 0012 Airfoils
Studies presented in the literature have been conducted to investigate this size constraints influence on rotor testing .
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Performance analysis of a cylindrical eddy current brake
Fig. 8 Structure and dimensions of rotors for testing influence of skin effect .
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Induction motors broken bar and eccentric gap on-line detection using motor signature current analysis under laboratory and field conditions
Some off- line test like Growler test or Rotor Influence Check (RIC), determine rotor condition.
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Using a six fault zone approach for predictive maintenance on motors
In-rush current, CSA, inductive imbalance, and a modified inductance measurement known as a Rotor Influence Check (RIC) test are used to analyze this fault zone.
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Fault Zone Analysis - Identifying Motor Defects Using the Rotor Fault Zone
These faults are analyzed using Current Signature Analysis (CSA) and a modified inductance measurement known as a Rotor Influence Check (RIC) test .
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Influence of skin effect on torque of cylindrical eddy current brake
Fig. 6 Structure and dimensions of rotors for testing the influence of skin effect.
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Semi-empirical modeling of fuselage–rotor interference for comprehensive codes: the fundamental model
Go¨pel, C., van der Wall, B.G.: U¨ ber den Einfluß der Roto- rversuchssta¨nde ROTEST und ROTOS auf die Rotordurchstro¨- mung im DNW (About the influence of the rotor test rigs ROTEST and ROTOS on the flow in the rotor disk in …
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Motors | Three easy lessons | Plant Services
Offline testing includes a rotor influence check, which graphically depicts broken rotor bars.