LIRW-Dimming-Controller_pdf
... coverage area of approximately 2100 square feet. The maximum sensing distance in front of the sensor is 40 feet, and 30 feet at each side. A “smallmotion” zone detects relatively small body movements and allows the lights to stay ON even though a person may not be moving or walking around the room. ...
... coverage area of approximately 2100 square feet. The maximum sensing distance in front of the sensor is 40 feet, and 30 feet at each side. A “smallmotion” zone detects relatively small body movements and allows the lights to stay ON even though a person may not be moving or walking around the room. ...
paper
... The structure and operation of our 4-terminal MEMrelay [3] is shown in Fig. 1. When the gate-to-body (|VGB|) voltage exceeds the pull-in voltage (Vpi) the channel connects the source and drain electrodes and allows current to flow. The current flow is disrupted by an air gap when |VGB| decreases bel ...
... The structure and operation of our 4-terminal MEMrelay [3] is shown in Fig. 1. When the gate-to-body (|VGB|) voltage exceeds the pull-in voltage (Vpi) the channel connects the source and drain electrodes and allows current to flow. The current flow is disrupted by an air gap when |VGB| decreases bel ...
EC notes - Emanthra.com
... Variable Inductors : Its inductance value can be changed over a specified range as and when required. The inductance is usually varied by changing the position of the core with respect to the winding. ...
... Variable Inductors : Its inductance value can be changed over a specified range as and when required. The inductance is usually varied by changing the position of the core with respect to the winding. ...
Arc Fault Circuit Interrupter Explained
... High line-voltage creates excess power and heat in utilization devices such as heaters, light bulbs, appliances, motors, and electronics. In extreme cases, this heat can ignite fires. One extreme source of high line voltage occurs from a neutral path opening within a two-leg 120 V residential electr ...
... High line-voltage creates excess power and heat in utilization devices such as heaters, light bulbs, appliances, motors, and electronics. In extreme cases, this heat can ignite fires. One extreme source of high line voltage occurs from a neutral path opening within a two-leg 120 V residential electr ...
Optimizing Performance of Fast Transfer Schemes
... Sequential transfers eliminate this problem by disconnecting one source before connecting the second. The available sequential methods are the fast, in phase and residual methods. Sequential transfers address the problems that are inherent to parallel transfer, but may cause other concerns. The sequ ...
... Sequential transfers eliminate this problem by disconnecting one source before connecting the second. The available sequential methods are the fast, in phase and residual methods. Sequential transfers address the problems that are inherent to parallel transfer, but may cause other concerns. The sequ ...
HTL-CU-230 g Capacitor storage
... TECH LINE relays can be supplied and dependent on the power demand, it ensures that a circuit breaker can be switched-off up to three times when the normal aux. voltage has failed. The HTL-CU is provided with two separate capacitor storages, equipped with high duty cycle long-life capacitors. ...
... TECH LINE relays can be supplied and dependent on the power demand, it ensures that a circuit breaker can be switched-off up to three times when the normal aux. voltage has failed. The HTL-CU is provided with two separate capacitor storages, equipped with high duty cycle long-life capacitors. ...
SELCO T-Line Generator Control, Protection and Monitoring Short Form Catalogue
... load/power control The SELCO T-Line range includes various Auto Synchronizers and Load Sharers for load/power control. The Auto Synchronizers perform automatic synchronization of incoming generators in a minimum of time. The Load Sharers provide automatic load sharing and system frequency control fo ...
... load/power control The SELCO T-Line range includes various Auto Synchronizers and Load Sharers for load/power control. The Auto Synchronizers perform automatic synchronization of incoming generators in a minimum of time. The Load Sharers provide automatic load sharing and system frequency control fo ...
SIMIREL - Siemens
... compact device with internal connected common terminal label as monitoring relay and as motor protection relay variances with 1no +1nc, 2co order 2co gold plated no special variance for transformer protection ...
... compact device with internal connected common terminal label as monitoring relay and as motor protection relay variances with 1no +1nc, 2co order 2co gold plated no special variance for transformer protection ...
Relay
A relay is an electrically operated switch. Many relays use an electromagnet to mechanically operate a switch, but other operating principles are also used, such as solid-state relays. Relays are used where it is necessary to control a circuit by a low-power signal (with complete electrical isolation between control and controlled circuits), or where several circuits must be controlled by one signal. The first relays were used in long distance telegraph circuits as amplifiers: they repeated the signal coming in from one circuit and re-transmitted it on another circuit. Relays were used extensively in telephone exchanges and early computers to perform logical operations.A type of relay that can handle the high power required to directly control an electric motor or other loads is called a contactor. Solid-state relays control power circuits with no moving parts, instead using a semiconductor device to perform switching. Relays with calibrated operating characteristics and sometimes multiple operating coils are used to protect electrical circuits from overload or faults; in modern electric power systems these functions are performed by digital instruments still called ""protective relays"".