DC MachinesPPT1 - Electrical and Computer Engineering
... which is cut into two halves or segments insulated from each other by a thin sheet of mica or some other insulating material. As before, the coil ends are joined to these segments on which rest the carbon or copper brushes. In the practical generator which has more than two poles and more than o ...
... which is cut into two halves or segments insulated from each other by a thin sheet of mica or some other insulating material. As before, the coil ends are joined to these segments on which rest the carbon or copper brushes. In the practical generator which has more than two poles and more than o ...
OPERATING MANUAL Model BD-80C High Frequency Corona
... material to be treated. Mounting tabs are attached to the chassis for mounting. See Figures 1.1 or 1.2 for dimensions. 2.1.2 Horizontal or inverted vertical mounting is possible. Be sure not to block ventilation holes. A right angle duct, SKU 18501-91 must be used to properly direct air flow from th ...
... material to be treated. Mounting tabs are attached to the chassis for mounting. See Figures 1.1 or 1.2 for dimensions. 2.1.2 Horizontal or inverted vertical mounting is possible. Be sure not to block ventilation holes. A right angle duct, SKU 18501-91 must be used to properly direct air flow from th ...
Testing in the Fourth Dimension
... For digital logic single stuck-at fault model offers best advantage of tools and experience. Many other faults (bridging, stuck-open and multiple stuck-at) are largely covered by stuck-at fault tests. Stuck-short and delay faults and technologydependent faults require special tests. Memory and analo ...
... For digital logic single stuck-at fault model offers best advantage of tools and experience. Many other faults (bridging, stuck-open and multiple stuck-at) are largely covered by stuck-at fault tests. Stuck-short and delay faults and technologydependent faults require special tests. Memory and analo ...
Untitled - Toronto Hydro
... sufficiently clear, then revised or additional drawings and information must be submitted on request. 6.3 Manufacture of Equipment – Drawing Approval Manufacture of equipment should not start until all drawings and information have been approved by Toronto Hydro. This will avoid costly changes to co ...
... sufficiently clear, then revised or additional drawings and information must be submitted on request. 6.3 Manufacture of Equipment – Drawing Approval Manufacture of equipment should not start until all drawings and information have been approved by Toronto Hydro. This will avoid costly changes to co ...
switchboards
... bolted together to form one metal enclosed rigid switchboard. The sides, top and rear shall be covered with removable screw-on code gauge steel plates. Switchboard shall include all protective devices and equipment as listed on drawings with necessary interconnections, instrumentation and control wi ...
... bolted together to form one metal enclosed rigid switchboard. The sides, top and rear shall be covered with removable screw-on code gauge steel plates. Switchboard shall include all protective devices and equipment as listed on drawings with necessary interconnections, instrumentation and control wi ...
Low Voltage Surge Protection Products
... busbars are much preferred as they provide the lowest impedance return path for the surge energy. Wherever possible, keep the total connection length below 0.5m on any cable & always tie cables tightly together. Try to keep surge voltage drop to <1kV/cable. Don’t loop extra cable! It only adds more ...
... busbars are much preferred as they provide the lowest impedance return path for the surge energy. Wherever possible, keep the total connection length below 0.5m on any cable & always tie cables tightly together. Try to keep surge voltage drop to <1kV/cable. Don’t loop extra cable! It only adds more ...
Introduction - College of William and Mary
... excess voltage and prevents most of it from reaching sensitive equipment. But like a sponge, surge protectors have a limited capacity to absorb. Once the capacity is reached, the unit is no longer protecting the equipment and it should be replaced. Most surge protectors will continue to function as ...
... excess voltage and prevents most of it from reaching sensitive equipment. But like a sponge, surge protectors have a limited capacity to absorb. Once the capacity is reached, the unit is no longer protecting the equipment and it should be replaced. Most surge protectors will continue to function as ...
Complete ECE 322 Manual
... The post-lab/ report for each week will vary slightly; so please pay attention to what the questions are, prior to starting your lab. The post-labs will consist of either questions to be answered separately, or having you update your project specification document to match your results. Sometimes, i ...
... The post-lab/ report for each week will vary slightly; so please pay attention to what the questions are, prior to starting your lab. The post-labs will consist of either questions to be answered separately, or having you update your project specification document to match your results. Sometimes, i ...
Operating Manual SUNNY TRIPOWER 5000TL / 6000TL / 7000TL /
... components can lead to lethal electric shocks. If you disconnect the DC connectors from the inverter under load, an electric arc may occur leading to electric shock and burns. • Do not touch uninsulated cable ends. • Do not touch the DC conductors. • Do not touch any live components of the inverter. ...
... components can lead to lethal electric shocks. If you disconnect the DC connectors from the inverter under load, an electric arc may occur leading to electric shock and burns. • Do not touch uninsulated cable ends. • Do not touch the DC conductors. • Do not touch any live components of the inverter. ...
Putting a Balun and a Tuner Together
... that the rest of this does not have additional connections. Since the shield is continuous from the transmitter around the tuner to the end of the output coax, I can apply the same analysis as Walter Maxwell did and what happens inside the tuner and coax is immaterial for what happens outside. Chang ...
... that the rest of this does not have additional connections. Since the shield is continuous from the transmitter around the tuner to the end of the output coax, I can apply the same analysis as Walter Maxwell did and what happens inside the tuner and coax is immaterial for what happens outside. Chang ...
arc flash FREQUENTLY ASKED QUESTIONS
... OSHA mandates that employers identify electrical hazards, warn their workers about them and provide the proper protective equipment and training related to working around the hazards. OSHA provides the employer "what" to do, but does not define "how" to do it. The role of NFPA 70E, IEEE and NEC is t ...
... OSHA mandates that employers identify electrical hazards, warn their workers about them and provide the proper protective equipment and training related to working around the hazards. OSHA provides the employer "what" to do, but does not define "how" to do it. The role of NFPA 70E, IEEE and NEC is t ...
ARCMASTER® 185 AC/DC 200 AC/DC Service Manual
... strictly observe all safety rules and take precautionary actions. Safe practices have developed from past experience in the use of welding and cutting. These practices must be learned through study and training before using this equipment. Some of these practices apply to equipment connected to powe ...
... strictly observe all safety rules and take precautionary actions. Safe practices have developed from past experience in the use of welding and cutting. These practices must be learned through study and training before using this equipment. Some of these practices apply to equipment connected to powe ...
switchboards
... bolted together to form one metal enclosed rigid switchboard. The sides, top and rear shall be covered with removable screw-on code gauge steel plates. Switchboard shall include all protective devices and equipment as listed on drawings with necessary interconnections, instrumentation and control wi ...
... bolted together to form one metal enclosed rigid switchboard. The sides, top and rear shall be covered with removable screw-on code gauge steel plates. Switchboard shall include all protective devices and equipment as listed on drawings with necessary interconnections, instrumentation and control wi ...
Power and distribution transformers
... calculation and CAD programming. They are oil-type transformers filled with mineral, silicone or vegetable oil. They operate at the fundamental frequency of an alternating current system and are designed to have one or more output windings connected to the rectifier. It is possible to make major cha ...
... calculation and CAD programming. They are oil-type transformers filled with mineral, silicone or vegetable oil. They operate at the fundamental frequency of an alternating current system and are designed to have one or more output windings connected to the rectifier. It is possible to make major cha ...
User Guide - Motion Control Systems
... High-performance motion control equipment is capable of producing rapid movement and very high forces. Unexpected motion may occur especially during the development of controller programs. KEEP WELL CLEAR of any machinery driven by stepper or servo motors. Never touch any part of the equipment while ...
... High-performance motion control equipment is capable of producing rapid movement and very high forces. Unexpected motion may occur especially during the development of controller programs. KEEP WELL CLEAR of any machinery driven by stepper or servo motors. Never touch any part of the equipment while ...
Low-Power High-Speed Current Mode Logic Using Tunnel
... makes the switching speed of CML much higher than the static logic can achieve, so it is worthy to adopt the CML circuits at the cost of higher power consumption in the highspeed applications. In order to obtain a better power efficiency (F requency/power) in CML, it is critical to reduce the power ...
... makes the switching speed of CML much higher than the static logic can achieve, so it is worthy to adopt the CML circuits at the cost of higher power consumption in the highspeed applications. In order to obtain a better power efficiency (F requency/power) in CML, it is critical to reduce the power ...
Protector Devices - Crompton Instruments
... • Detection and isolation of faults • Maintains supply continuity of healthy circuits • High speed tripping to avoid damage ...
... • Detection and isolation of faults • Maintains supply continuity of healthy circuits • High speed tripping to avoid damage ...
WiFi Module Data Sheet
... The phototransistor is used to receive BlinkUp configuration data. The bias resistor connected between OPTO_IN and GND may need to be adjusted to ensure adequate sensitivity and response time - in general you need at least 500mV swing on the OPTO_IN pin between black and white states, with the worst ...
... The phototransistor is used to receive BlinkUp configuration data. The bias resistor connected between OPTO_IN and GND may need to be adjusted to ensure adequate sensitivity and response time - in general you need at least 500mV swing on the OPTO_IN pin between black and white states, with the worst ...
Installation/User Manual
... instructions and cautionary markings in the technical documents and on the APS Microinverter system and the PV-array. ✔✔ Be aware that the body of the APS Microinverter is the heat sink and can reach high temperatures. To reduce risk of burns, do not touch the body of the Microinverter. ✔✔ Do NOT at ...
... instructions and cautionary markings in the technical documents and on the APS Microinverter system and the PV-array. ✔✔ Be aware that the body of the APS Microinverter is the heat sink and can reach high temperatures. To reduce risk of burns, do not touch the body of the Microinverter. ✔✔ Do NOT at ...
Ground (electricity)
In electrical engineering, ground or earth is the reference point in an electrical circuit from which voltages are measured, a common return path for electric current, or a direct physical connection to the Earth.Electrical circuits may be connected to ground (earth) for several reasons. In mains powered equipment, exposed metal parts are connected to ground to prevent user contact with dangerous voltage if electrical insulation fails. Connections to ground limit the build-up of static electricity when handling flammable products or electrostatic-sensitive devices. In some telegraph and power transmission circuits, the earth itself can be used as one conductor of the circuit, saving the cost of installing a separate return conductor (see single-wire earth return).For measurement purposes, the Earth serves as a (reasonably) constant potential reference against which other potentials can be measured. An electrical ground system should have an appropriate current-carrying capability to serve as an adequate zero-voltage reference level. In electronic circuit theory, a ""ground"" is usually idealized as an infinite source or sink for charge, which can absorb an unlimited amount of current without changing its potential. Where a real ground connection has a significant resistance, the approximation of zero potential is no longer valid. Stray voltages or earth potential rise effects will occur, which may create noise in signals or if large enough will produce an electric shock hazard.The use of the term ground (or earth) is so common in electrical and electronics applications that circuits in portable electronic devices such as cell phones and media players as well as circuits in vehicles may be spoken of as having a ""ground"" connection without any actual connection to the Earth, despite ""common"" being a more appropriate term for such a connection. This is usually a large conductor attached to one side of the power supply (such as the ""ground plane"" on a printed circuit board) which serves as the common return path for current from many different components in the circuit.