EEM 4.4-3 Three-phase motor with slip
... can be drawn between DC, AC and three-phase machines. The machines used for training in electrical engineering are designed so that nearly all of the circuitry and drives found in industry, commerce and at home can be conveyed in a didactic fashion in hands-on training. Using the servo drive and bra ...
... can be drawn between DC, AC and three-phase machines. The machines used for training in electrical engineering are designed so that nearly all of the circuitry and drives found in industry, commerce and at home can be conveyed in a didactic fashion in hands-on training. Using the servo drive and bra ...
Gage Installation Tester Model 1300
... performance, any installation that produces questionable values should not be relied upon where accuracy of results is necessary. For example, a voltage difference between the specimen and strain gage frequently exists. A low insulation resistance will permit this voltage differential to introduce e ...
... performance, any installation that produces questionable values should not be relied upon where accuracy of results is necessary. For example, a voltage difference between the specimen and strain gage frequently exists. A low insulation resistance will permit this voltage differential to introduce e ...
Ai-760 Analog Test Instrument
... lower costs for test systems and test programs. The Ai-760 is a standards-based analog test solution that provides high-performance and flexibility for Defense and Aerospace test applications. The Ai-760 combines legacy functionality with advanced, parallel test capabilities. This powerful combinati ...
... lower costs for test systems and test programs. The Ai-760 is a standards-based analog test solution that provides high-performance and flexibility for Defense and Aerospace test applications. The Ai-760 combines legacy functionality with advanced, parallel test capabilities. This powerful combinati ...
Aucun titre de diapositive - Small Hydro
... refurbished. • New equipment has been installed where necessary. • Modern electronic equipment has been hooked to the old and new equipment to properly monitor them. • The old small hydro plant is now remotely controlled by computer rather than by an on site staff. ...
... refurbished. • New equipment has been installed where necessary. • Modern electronic equipment has been hooked to the old and new equipment to properly monitor them. • The old small hydro plant is now remotely controlled by computer rather than by an on site staff. ...
BE ON GUARD FOR EFFECTIVE TESTING
... with the true insulation resistance of the material being tested. By using the guard terminal, performing a so-called three terminal test, the surface leakage current is ignored. This may be important when high values of resistance are expected such as when testing high voltage components like insul ...
... with the true insulation resistance of the material being tested. By using the guard terminal, performing a so-called three terminal test, the surface leakage current is ignored. This may be important when high values of resistance are expected such as when testing high voltage components like insul ...
P84425
... maintenance and testing must be performed by qualified personnel for proper operation in accordance with all of the latest National Fire Protection Association (NFPA), Underwriters' Laboratories (UL), National Electrical Code (NEC), Occupational Safety and Health Administration (OSHA), local, state, ...
... maintenance and testing must be performed by qualified personnel for proper operation in accordance with all of the latest National Fire Protection Association (NFPA), Underwriters' Laboratories (UL), National Electrical Code (NEC), Occupational Safety and Health Administration (OSHA), local, state, ...
Transformer Excitation Current Test
... – Use the highest whole number test kV that the test set can operate at, up to the maximum voltage ...
... – Use the highest whole number test kV that the test set can operate at, up to the maximum voltage ...
Digital Multimeter
... which automatically selects between AC voltage, DC voltage or resistance measurement based on the test point to which the leads are ...
... which automatically selects between AC voltage, DC voltage or resistance measurement based on the test point to which the leads are ...
Topic 18 Safety
... exposing your neighbors to too much RF, you need to relocate your entire antenna system, or take precautions to ensure it cannot be pointed in their direction when transmitting. ...
... exposing your neighbors to too much RF, you need to relocate your entire antenna system, or take precautions to ensure it cannot be pointed in their direction when transmitting. ...
Mastech MS8264
... * When the multimeter is linked to measurement circuits, do not touch unused terminals. * Caution when working with voltages above 60Vdc or 30Vac rms. Such voltages pose a shock hazard. * When using the probes, keep your fingers behind the finger guards. * When making connections, connect the common ...
... * When the multimeter is linked to measurement circuits, do not touch unused terminals. * Caution when working with voltages above 60Vdc or 30Vac rms. Such voltages pose a shock hazard. * When using the probes, keep your fingers behind the finger guards. * When making connections, connect the common ...
Basic Electrical Concepts And Hazards
... High Voltage Circuits in Vehicles ● Since it is not seeking earth ground, to get a shock, you must contact two points in the circuit. Contacting only one should not create a circuit to ground as it would in a building. ● If the chassis becomes part of an HV circuit, the system is designed to detect ...
... High Voltage Circuits in Vehicles ● Since it is not seeking earth ground, to get a shock, you must contact two points in the circuit. Contacting only one should not create a circuit to ground as it would in a building. ● If the chassis becomes part of an HV circuit, the system is designed to detect ...
1 - Brown University
... coordinated with the Brown University Facilities Operations and Engineering staff. G. Arc-flash labeling shall be provided for each piece of major electrical utilization equipment being installed in the project that is likely to require examination, adjustment, maintenance or service while energized ...
... coordinated with the Brown University Facilities Operations and Engineering staff. G. Arc-flash labeling shall be provided for each piece of major electrical utilization equipment being installed in the project that is likely to require examination, adjustment, maintenance or service while energized ...
Performing locked rotor test on squirrel cage motors
... If full voltage is to be applied to the motor terminals under stall conditions, the test becomes analogous to an Abrupt Short-circuit Prototype Test of a transformer. Consider a 570 kW, 3300 V, 115 A, 4 pole motor with “T” bars (186 mm²) fitted in the rotor. When the rated voltage is applied to the ...
... If full voltage is to be applied to the motor terminals under stall conditions, the test becomes analogous to an Abrupt Short-circuit Prototype Test of a transformer. Consider a 570 kW, 3300 V, 115 A, 4 pole motor with “T” bars (186 mm²) fitted in the rotor. When the rated voltage is applied to the ...
Power – 081 Substation Fitting Maintain Power System
... K1. The principles of health, safety and environmental legislation in relation to work on power system plant and apparatus e.g. Electricity at Work Regulations 1989 K2. The organisations safety rules, policies and procedures relating to work on or near substation plant/apparatus e.g. safety document ...
... K1. The principles of health, safety and environmental legislation in relation to work on power system plant and apparatus e.g. Electricity at Work Regulations 1989 K2. The organisations safety rules, policies and procedures relating to work on or near substation plant/apparatus e.g. safety document ...
high voltage power supply design and manufacturing
... processor should be voltage-partitioned and the low voltage circuits should be separated from the high voltage circuits. This is usually done with a metal wall. There still will be signals transmitted between the sections. All grounds should be isolated to provide a means to predict the currents whe ...
... processor should be voltage-partitioned and the low voltage circuits should be separated from the high voltage circuits. This is usually done with a metal wall. There still will be signals transmitted between the sections. All grounds should be isolated to provide a means to predict the currents whe ...
test schedule
... (i) O/W may be tested up to BER 1x10-3 for speech and signalling by attenuating the power by inserting optical pads.O/W should be able to work when BER is upto 1x10-3 7.0 Check of Synchonisation : Check that master station/node is synchronised with Cesium or Rubidium clock or from the clock of nearb ...
... (i) O/W may be tested up to BER 1x10-3 for speech and signalling by attenuating the power by inserting optical pads.O/W should be able to work when BER is upto 1x10-3 7.0 Check of Synchonisation : Check that master station/node is synchronised with Cesium or Rubidium clock or from the clock of nearb ...
Portable appliance testing
Portable appliance testing (commonly known as ""PAT"", ""PAT Inspection"" or ""PAT Testing"") is the name of a process in the United Kingdom, the Republic of Ireland, New Zealand and Australia by which electrical appliances are routinely checked for safety. The correct term for the whole process is ""in-service inspection & testing of electrical equipment"".Similar procedures exist in other countries, for example, testing of equipment according to DGUV Vorschrift 3 in Germany.Health and safety regulations require that electrical appliances are safe and maintained to prevent harm to workers. Many equipment manufacturers recommend testing at regular intervals to ensure continual safety; the interval between tests depending on both the type of appliance and the environment in which it is to be used. The European Low Voltage Directive governs the manufacture or importation of electrical appliances. Compliance to this has to be declared and indicated by the display of the CE mark on the product. The responsibility for this lies with the manufacturer or the importer and is policed by Trading Standards.Testing equipment has been specifically developed for PAT inspections, based on the testing equipment used by manufacturers to ensure compliance with the British Standard Code of Practice and European product standards relevant to that type of appliance. This in turn allows testing and the interpretation of results to be de-skilled to a large extent. The inspection of the appliances can largely be carried out in-house in many organisations. This can result in cost savings and more flexibility as to exactly when a PAT is carried out.