NEMA # ICS-14 - Hubbell Industrial Controls
... 1. External control circuits that extend outside the fire pump room shall be arranged so that failure of any external circuit (open or short-circuit) shall not prevent operation of pump(s) from all other internal or external means (NFPA 20, 10.5.2.6; NFPA 70, 695.14). 2. Failure of external control ...
... 1. External control circuits that extend outside the fire pump room shall be arranged so that failure of any external circuit (open or short-circuit) shall not prevent operation of pump(s) from all other internal or external means (NFPA 20, 10.5.2.6; NFPA 70, 695.14). 2. Failure of external control ...
The Tesla coil
... The electrical engineering faculty members at UTeM Malaysia, put together a pretty neat design for a Tesla coil with better mobility, being less bulky than typical designs. Their goal was to generate a high frequency current with a medium voltage, that is, 2.5kV on the secondary with an unusual 24VD ...
... The electrical engineering faculty members at UTeM Malaysia, put together a pretty neat design for a Tesla coil with better mobility, being less bulky than typical designs. Their goal was to generate a high frequency current with a medium voltage, that is, 2.5kV on the secondary with an unusual 24VD ...
Electrical Safety - HCC Learning Web
... Most residential and small commercial installation use a 24-volt control system. The transformer for a residential unit is used to convert line voltage to 24volts. Some commercial and industrial high-voltage equipment uses transformers that drop the line voltage from 240 or 120 volts. ...
... Most residential and small commercial installation use a 24-volt control system. The transformer for a residential unit is used to convert line voltage to 24volts. Some commercial and industrial high-voltage equipment uses transformers that drop the line voltage from 240 or 120 volts. ...
http://www.xilinx.com/support/documentation/application_notes/xapp453.pdf
... With the VCCAUX rails at 2.5V, the Dedicated outputs TDO, DONE (with BitGen option DriveDone = Yes), and CCLK (in the master configuration modes) switch from GND to 2.5V. Connect these outputs as needed directly to the inputs of any 3.3V compatible external device. The High logic level, VOH, for the ...
... With the VCCAUX rails at 2.5V, the Dedicated outputs TDO, DONE (with BitGen option DriveDone = Yes), and CCLK (in the master configuration modes) switch from GND to 2.5V. Connect these outputs as needed directly to the inputs of any 3.3V compatible external device. The High logic level, VOH, for the ...
GE Control Catalog - Section 3: Lighting Contactors
... 1. 3 wire control is the choice for use with momentary devices allowing operation from multiple locations —a momentary pulse of energy operates contactor; a second pulse on alternate leg returns contactor to original state 2. 2-wire control is the choice for single-output automatic operation or for ...
... 1. 3 wire control is the choice for use with momentary devices allowing operation from multiple locations —a momentary pulse of energy operates contactor; a second pulse on alternate leg returns contactor to original state 2. 2-wire control is the choice for single-output automatic operation or for ...
USB 2.0 Protection and IPAD solutions
... Integrated electronics systems with highcomponent-density PCBs facilitate ESD coupling and propagation ...
... Integrated electronics systems with highcomponent-density PCBs facilitate ESD coupling and propagation ...
1 - Monash University Research Repository
... Figure 4.8: 3 ro harmonic impedance as seen by a locomotive load at different positions along feeder section, before and after compensation (K=-0.2, a>c= 5rad/s) ...
... Figure 4.8: 3 ro harmonic impedance as seen by a locomotive load at different positions along feeder section, before and after compensation (K=-0.2, a>c= 5rad/s) ...
MAX186/MAX188 Low-Power, 8-Channel, Serial 12-Bit ADCs General Description
... Note 1: Tested at VDD = 5.0V; VSS = 0V; unipolar input mode. Note 2: Relative accuracy is the deviation of the analog value at any code from its theoretical value after the full-scale range has been calibrated. Note 3: MAX186 – internal reference, offset nulled; MAX188 – external reference (VREF = + ...
... Note 1: Tested at VDD = 5.0V; VSS = 0V; unipolar input mode. Note 2: Relative accuracy is the deviation of the analog value at any code from its theoretical value after the full-scale range has been calibrated. Note 3: MAX186 – internal reference, offset nulled; MAX188 – external reference (VREF = + ...
The Starting System
... While the motor is smaller and weighs less than conventional starting motors, it operates at higher speed. The reduction gears transfer this torque to the pinion gear at 1/4 to 1/3 the motor speed. The pinion gear still rotate faster than the gear on a conventional starter and with much greater torq ...
... While the motor is smaller and weighs less than conventional starting motors, it operates at higher speed. The reduction gears transfer this torque to the pinion gear at 1/4 to 1/3 the motor speed. The pinion gear still rotate faster than the gear on a conventional starter and with much greater torq ...
MAX220–MAX249 +5V-Powered, Multichannel RS
... single-package solution for IBM PC serial port DIP or flatpack package ...
... single-package solution for IBM PC serial port DIP or flatpack package ...
The Diode
... At very large reverse bias, beyond the peak inverse voltage or PIV, a process called reverse breakdown occurs which causes a large increase in current that usually damages the device permanently. The avalanche diode is deliberately designed for use in the avalanche region. In the zener diode, the co ...
... At very large reverse bias, beyond the peak inverse voltage or PIV, a process called reverse breakdown occurs which causes a large increase in current that usually damages the device permanently. The avalanche diode is deliberately designed for use in the avalanche region. In the zener diode, the co ...
Lectures. Direct current machi
... mechanical energy into electrical energy. it is frequently used in houses and officers but do you know how it is constructed. let's try to understand this. a DC generator consists of a magnetic frame or Yoke, the pole core, the pole coils or field coils, the armature core, the armature windings, the ...
... mechanical energy into electrical energy. it is frequently used in houses and officers but do you know how it is constructed. let's try to understand this. a DC generator consists of a magnetic frame or Yoke, the pole core, the pole coils or field coils, the armature core, the armature windings, the ...
ADC-Series - Documents
... extension are used to determine the exact positions where the actuator will stop at each end of CW and CCW travel. The bottom limit switch determines the clockwise stop position. The next limit switch up from the bottom determines the counter-clockwise stop position. The “end of travel limit” switch ...
... extension are used to determine the exact positions where the actuator will stop at each end of CW and CCW travel. The bottom limit switch determines the clockwise stop position. The next limit switch up from the bottom determines the counter-clockwise stop position. The “end of travel limit” switch ...
MAX5825A Evaluation Kit Evaluates: MAX5823/MAX5824/ MAX5825A/MAX5825B General Description
... the external voltage reference IC (U7). The external 2.5V reference can be connected between the EXT_REF pin and its corresponding ground. Select the External Ref radio button and type the reference voltage into the edit box. Removing the shunt from jumper JU11 allows internal reference options, whi ...
... the external voltage reference IC (U7). The external 2.5V reference can be connected between the EXT_REF pin and its corresponding ground. Select the External Ref radio button and type the reference voltage into the edit box. Removing the shunt from jumper JU11 allows internal reference options, whi ...
SCSICrate INTEGRATED CAMAC CRATE AND CONTROLLER
... modules. The fans operate from the two 6V supplies through a special power line filter. The cooling is enhanced by the use of steel guide rail assemblies designed with a substantial open aperture to permit a high degree of airflow. The SCSICrate has two stage RFI protection to minimize RF coupling i ...
... modules. The fans operate from the two 6V supplies through a special power line filter. The cooling is enhanced by the use of steel guide rail assemblies designed with a substantial open aperture to permit a high degree of airflow. The SCSICrate has two stage RFI protection to minimize RF coupling i ...
Switched-mode power supply
A switched-mode power supply (switching-mode power supply, switch-mode power supply, SMPS, or switcher) is an electronic power supply that incorporates a switching regulator to convert electrical power efficiently. Like other power supplies, an SMPS transfers power from a source, like mains power, to a load, such as a personal computer, while converting voltage and current characteristics. Unlike a linear power supply, the pass transistor of a switching-mode supply continually switches between low-dissipation, full-on and full-off states, and spends very little time in the high dissipation transitions, which minimizes wasted energy. Ideally, a switched-mode power supply dissipates no power. Voltage regulation is achieved by varying the ratio of on-to-off time. In contrast, a linear power supply regulates the output voltage by continually dissipating power in the pass transistor. This higher power conversion efficiency is an important advantage of a switched-mode power supply. Switched-mode power supplies may also be substantially smaller and lighter than a linear supply due to the smaller transformer size and weight.Switching regulators are used as replacements for linear regulators when higher efficiency, smaller size or lighter weight are required. They are, however, more complicated; their switching currents can cause electrical noise problems if not carefully suppressed, and simple designs may have a poor power factor.