electronics 1 - Computer Engineering 2009
... electronic circuits this is the 0V (zero volts) of the power supply, but for mains electricity and some radio circuits it really means the earth. It is also known as ground. ...
... electronic circuits this is the 0V (zero volts) of the power supply, but for mains electricity and some radio circuits it really means the earth. It is also known as ground. ...
new triacs: is the snubber circuit necessary?
... the functions of snubber circuits for triacs and to propose calculation methods. But today snubber circuits must be reconsidered by taking into account the progress of the triac technology. This article explains how it is now possible to reduce or to eliminate the snubber, and thus simplify the AC s ...
... the functions of snubber circuits for triacs and to propose calculation methods. But today snubber circuits must be reconsidered by taking into account the progress of the triac technology. This article explains how it is now possible to reduce or to eliminate the snubber, and thus simplify the AC s ...
- SlideBoom
... simulation and verify the simulated results are the same as the calculated values. Were the values the same? Yes/No. If no, why? 3.Construct the circuit above on the breadboard. Connect the circuit’s input to the power supply and set it to +10 V. Use the handheld DMM to adjust the supply to +10 V. U ...
... simulation and verify the simulated results are the same as the calculated values. Were the values the same? Yes/No. If no, why? 3.Construct the circuit above on the breadboard. Connect the circuit’s input to the power supply and set it to +10 V. Use the handheld DMM to adjust the supply to +10 V. U ...
Número de publicación
... switching pole (25, 28, 30). The poles are connected with bus bar connectors (3-5) by controllable contact systems (9, 10, 11), where the contact systems are controlled such that conductive connection is formed between the switching poles and the bus bar connectors by each controllable contact syste ...
... switching pole (25, 28, 30). The poles are connected with bus bar connectors (3-5) by controllable contact systems (9, 10, 11), where the contact systems are controlled such that conductive connection is formed between the switching poles and the bus bar connectors by each controllable contact syste ...
DNV Standard for Certification 2.25 Electrical Shore Connections
... The availability of the shore power supply depends on the utility systems onshore. However, this standard requires that a stand-by generator on-board is automatically started and connected upon loss of power from shore. Additionally, this standard does not require that discriminative protection in t ...
... The availability of the shore power supply depends on the utility systems onshore. However, this standard requires that a stand-by generator on-board is automatically started and connected upon loss of power from shore. Additionally, this standard does not require that discriminative protection in t ...
QTC_Electrical_modifications_AS_v1
... • Potential trigger of nQPS (splice protection only) systems during fast discharges • Concerned systems do no activate quench heaters • Global circuit protection will initiate fast circuit discharge if any of the main circuits is triggering -> no issue for LHC exploitation ...
... • Potential trigger of nQPS (splice protection only) systems during fast discharges • Concerned systems do no activate quench heaters • Global circuit protection will initiate fast circuit discharge if any of the main circuits is triggering -> no issue for LHC exploitation ...
Arc detecting relay system
... possible to use the same voltage for both purposes, but in that case input and output are connected via the power supply. The factory setting of sensitivity is 6 mA of detector output current to cause trip. This is equivalent to a light intensity of 12,000 lux on a single detector, 6,000 lux on each ...
... possible to use the same voltage for both purposes, but in that case input and output are connected via the power supply. The factory setting of sensitivity is 6 mA of detector output current to cause trip. This is equivalent to a light intensity of 12,000 lux on a single detector, 6,000 lux on each ...
Lab Manual of Basic Electrical Engineering
... 3. While conducting the short-circuit test, the voltage applied should be initially set at zero, and then increase slowly. If a little higher voltage than the required voltage be applied (by mistake), there is a danger of transformer being damaged. ...
... 3. While conducting the short-circuit test, the voltage applied should be initially set at zero, and then increase slowly. If a little higher voltage than the required voltage be applied (by mistake), there is a danger of transformer being damaged. ...
CYCLADES PM IPDU Installer/User Guide ®
... The Cyclades PM IPDU has been tested and found to comply with the limits for Class A digital devices, pursuant to Part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipme ...
... The Cyclades PM IPDU has been tested and found to comply with the limits for Class A digital devices, pursuant to Part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipme ...
Manual Motor Controllers (MMPs)
... Instantaneous Trip Circuit Breakers (MCPs) As recognized To UL 489 These are circuit breakers without overload (thermal) protection capability. They are intended to provide only branch circuit, short-circuit and ground protection for individual motor branch circuits. They may not be used to provide ...
... Instantaneous Trip Circuit Breakers (MCPs) As recognized To UL 489 These are circuit breakers without overload (thermal) protection capability. They are intended to provide only branch circuit, short-circuit and ground protection for individual motor branch circuits. They may not be used to provide ...
Control of Breaker-and-a-half diameters and a
... circuit breakers QA1, QA2 and QA3 in the three sections A, B and C. This implies a certain degree of redundancy in the primary equipment, because both lines can still be supplied reliably in any case even if one circuit breaker is faulted. A total of 17 switching devices (circuit breakers, disconnec ...
... circuit breakers QA1, QA2 and QA3 in the three sections A, B and C. This implies a certain degree of redundancy in the primary equipment, because both lines can still be supplied reliably in any case even if one circuit breaker is faulted. A total of 17 switching devices (circuit breakers, disconnec ...
Fault Management Circuit
... detection. If two VTMs are connected in series and one of them is in an overcurrent fault, the effective series output would be the output voltage of the fault-free VTM minus the forward bias drop of the body diodes of the VTM under fault. The conduction of the fault current through the fault-free V ...
... detection. If two VTMs are connected in series and one of them is in an overcurrent fault, the effective series output would be the output voltage of the fault-free VTM minus the forward bias drop of the body diodes of the VTM under fault. The conduction of the fault current through the fault-free V ...
Understanding GFCIs
... Why GFCIs must be installed a certain way • For Circuit Breaker GFCI: To prevent constant tripping, MUST connect Load Neutral to circuit breaker neutral terminal, NOT panelboard neutral. • For Receptacle GFCI: If line and load conductors are reversed, per 2010 edition UL 943, no power is available a ...
... Why GFCIs must be installed a certain way • For Circuit Breaker GFCI: To prevent constant tripping, MUST connect Load Neutral to circuit breaker neutral terminal, NOT panelboard neutral. • For Receptacle GFCI: If line and load conductors are reversed, per 2010 edition UL 943, no power is available a ...
Circuit breaker
A circuit breaker is an automatically operated electrical switch designed to protect an electrical circuit from damage caused by overload or short circuit. Its basic function is to detect a fault condition and interrupt current flow. Unlike a fuse, which operates once and then must be replaced, a circuit breaker can be reset (either manually or automatically) to resume normal operation. Circuit breakers are made in varying sizes, from small devices that protect an individual household appliance up to large switchgear designed to protect high voltage circuits feeding an entire city.