TBU Industrial App Note V3
... level at which the TBU operates is always greater than the TBU’s hold rating (Iop), and always less than the TBU’s maximum output current (Iout). When operated TBU will block all system voltages and any other voltages including the surge. ...
... level at which the TBU operates is always greater than the TBU’s hold rating (Iop), and always less than the TBU’s maximum output current (Iout). When operated TBU will block all system voltages and any other voltages including the surge. ...
Piezoelectric accelerometers and vibration preamplifie
... Recent years have seen the rise of vibration problems associated with structures which are more delicate and intricate, and machineswhich are faster and more complex. The problems have been coupled with demands for lower running costs and increased efficiency. Concern has also arisen about the effec ...
... Recent years have seen the rise of vibration problems associated with structures which are more delicate and intricate, and machineswhich are faster and more complex. The problems have been coupled with demands for lower running costs and increased efficiency. Concern has also arisen about the effec ...
V-Contact VSC Installation and service instructions 7.2/12 kV
... After powering, the electronic board takes 15 seconds to perform self-diagnosis and then prepares for normal operation, depending on the configuration. Do not operate the contactor during this phase. Contact DO1 will remain open, signal “not ready” and will only close after self-diagnosis has termin ...
... After powering, the electronic board takes 15 seconds to perform self-diagnosis and then prepares for normal operation, depending on the configuration. Do not operate the contactor during this phase. Contact DO1 will remain open, signal “not ready” and will only close after self-diagnosis has termin ...
Characterisation and Generation of High Impulse Voltages and
... The time to half-value T2 is the time interval between the virtual origin O1 and the point at 0.5û on the tail of a full lightning impulse voltage (Fig. 2.1a). The time to chopping Tc is the time interval between the virtual origin O1 and the virtual instant of chopping which is the point of interse ...
... The time to half-value T2 is the time interval between the virtual origin O1 and the point at 0.5û on the tail of a full lightning impulse voltage (Fig. 2.1a). The time to chopping Tc is the time interval between the virtual origin O1 and the virtual instant of chopping which is the point of interse ...
INTRODUCTION OF CHIP VARISTOR - hwemc
... This is achieved by the interdigitated construction of chip vairstor, which ensures that a large volume of suppressor material is available to absorb the transient energy. Insulation resistance (IR, MΩ) After reflow soldering with chip varistor on PCB, measure the value that apply 3.6 DC volta ...
... This is achieved by the interdigitated construction of chip vairstor, which ensures that a large volume of suppressor material is available to absorb the transient energy. Insulation resistance (IR, MΩ) After reflow soldering with chip varistor on PCB, measure the value that apply 3.6 DC volta ...
SGTL5000, Low Power Stereo Codec with Headphone Amp
... The SGTL5000 is a low power stereo codec with integrated headphone amplifier. It is designed to provide a complete audio solution for portable products needing LINEIN, mic-in, LINEOUT, headphone-out, and digital I/O. Deriving it’s architecture from best in class Freescale integrated products that ar ...
... The SGTL5000 is a low power stereo codec with integrated headphone amplifier. It is designed to provide a complete audio solution for portable products needing LINEIN, mic-in, LINEOUT, headphone-out, and digital I/O. Deriving it’s architecture from best in class Freescale integrated products that ar ...
PowerVac Switchgear Application Guide
... C37.06-2000, Table 1. Breakers tested to earlier ANSI C37.06-1987 ratings with K>1.0 are also available. Available ratings are shown on page 31.1 and 3.1.2 of this application guide. Power/Vac switchgear is designed, built, and tested to the applicable industry standards shown in Table 1-1. Power/Va ...
... C37.06-2000, Table 1. Breakers tested to earlier ANSI C37.06-1987 ratings with K>1.0 are also available. Available ratings are shown on page 31.1 and 3.1.2 of this application guide. Power/Vac switchgear is designed, built, and tested to the applicable industry standards shown in Table 1-1. Power/Va ...
MAX16016/MAX16020/MAX16021 Low-Power µP Supervisory Circuits with Battery-Backup Circuit and Chip-Enable Gating General Description
... 2) Control VCC to battery-backup switching internally to maintain data or low-power operation for memories, real-time clocks (RTCs), and other digital logic when the main power is removed. 3) Provide memory write protection through internal chip-enable gating during brownout. 4) Provide a combinatio ...
... 2) Control VCC to battery-backup switching internally to maintain data or low-power operation for memories, real-time clocks (RTCs), and other digital logic when the main power is removed. 3) Provide memory write protection through internal chip-enable gating during brownout. 4) Provide a combinatio ...
Axis controller CPX-CMAX-C1-1 Terminal CPX
... Accidental movements of the connected actuators can cause collisions, with serious injuries. Dangerous movements due to incorrect control of connected actuators, for example caused by: – untidy or faulty wiring/cabling – errors in operating the components – errors in the measured value and signal en ...
... Accidental movements of the connected actuators can cause collisions, with serious injuries. Dangerous movements due to incorrect control of connected actuators, for example caused by: – untidy or faulty wiring/cabling – errors in operating the components – errors in the measured value and signal en ...
submittals for release stand-alone clc systems
... Electrical Contractor must identify each SN for each device, and their location of installation on the plans. This information is required to program the system. ...
... Electrical Contractor must identify each SN for each device, and their location of installation on the plans. This information is required to program the system. ...
![Section [26 33 53] [16611]](http://s1.studyres.com/store/data/002033277_1-ad2c87694db493b622781060eaadd102-300x300.png)
Section [26 33 53] [16611]
... Section Includes: The work specified in this Section includes, but shall not be limited to, a continuous duty, three-phase, solid state, static UPS. 1. The UPS control logic shall incorporate state of the art digital signal processing. The inverters shall utilize high speed pulse width modulation an ...
... Section Includes: The work specified in this Section includes, but shall not be limited to, a continuous duty, three-phase, solid state, static UPS. 1. The UPS control logic shall incorporate state of the art digital signal processing. The inverters shall utilize high speed pulse width modulation an ...
MS2000 Operation Manual
... This equipment has been tested and found to comply with the limits for a Class B digital device, 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 residential environment. This equipment g ...
... This equipment has been tested and found to comply with the limits for a Class B digital device, 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 residential environment. This equipment g ...
300B Temperature Controller Manual
... Do not use this equipment in or near water. This equipment is grounded through the grounding conductor of the power cord. Route power cords and other cables so they are not likely to be damaged. Disconnect power before cleaning the equipment. Do not use liquid or aerosol cleaners; use only a damp li ...
... Do not use this equipment in or near water. This equipment is grounded through the grounding conductor of the power cord. Route power cords and other cables so they are not likely to be damaged. Disconnect power before cleaning the equipment. Do not use liquid or aerosol cleaners; use only a damp li ...
MRLSERVO-E Series Instructions and Cautions
... Install the servo amplifier, servo motor and regenerative resistor on incombustible material. Installing them directly or close to combustibles will lead to a fire. Always connect a magnetic contactor (MC) between the main circuit power supply and L1, L2, and L3 of the servo amplifier, and configure ...
... Install the servo amplifier, servo motor and regenerative resistor on incombustible material. Installing them directly or close to combustibles will lead to a fire. Always connect a magnetic contactor (MC) between the main circuit power supply and L1, L2, and L3 of the servo amplifier, and configure ...
Electrical Safety Rules
... WORK IN ELECTRICAL STATIONS ...............................................................................60 ...
... WORK IN ELECTRICAL STATIONS ...............................................................................60 ...
EN / ACS880-37 drives hardware manual
... Additional requirements for braking applications . . . . . . . . . . . . . . . . . . . . . . . . . . 75 Additional requirements for ABB high-output and IP23 motors . . . . . . . . . . . . . . . 75 Additional requirements for non-ABB high-output and IP23 motors . . . . . . . . . . . 75 Additional dat ...
... Additional requirements for braking applications . . . . . . . . . . . . . . . . . . . . . . . . . . 75 Additional requirements for ABB high-output and IP23 motors . . . . . . . . . . . . . . . 75 Additional requirements for non-ABB high-output and IP23 motors . . . . . . . . . . . 75 Additional dat ...
How to Protect Your House from Lightning
... given in this work serve as an enhancement to users, all parties must rely upon their own skill and judgement when making use of it. Neither the author nor the publisher assumes any liability to anyone for any loss or damage caused by any error or omission in the work, whether such error or omission ...
... given in this work serve as an enhancement to users, all parties must rely upon their own skill and judgement when making use of it. Neither the author nor the publisher assumes any liability to anyone for any loss or damage caused by any error or omission in the work, whether such error or omission ...
JEDEC STANDARD
... 1.2 Semiconductor rectifier diode characteristic and rating terms (cont’d) forward current (in a semiconductor diode) (For symbol see Table 1-1): The current flowing from the external circuit into the anode terminal. forward direction: The direction of a (positive) forward current forward power diss ...
... 1.2 Semiconductor rectifier diode characteristic and rating terms (cont’d) forward current (in a semiconductor diode) (For symbol see Table 1-1): The current flowing from the external circuit into the anode terminal. forward direction: The direction of a (positive) forward current forward power diss ...
Pulse-width modulation
Pulse-width modulation (PWM), or pulse-duration modulation (PDM), is a modulation technique used to encode a message into a pulsing signal. Although this modulation technique can be used to encode information for transmission, its main use is to allow the control of the power supplied to electrical devices, especially to inertial loads such as motors. In addition, PWM is one of the two principal algorithms used in photovoltaic solar battery chargers, the other being MPPT.The average value of voltage (and current) fed to the load is controlled by turning the switch between supply and load on and off at a fast rate. The longer the switch is on compared to the off periods, the higher the total power supplied to the load.The PWM switching frequency has to be much higher than what would affect the load (the device that uses the power), which is to say that the resultant waveform perceived by the load must be as smooth as possible. Typically switching has to be done several times a minute in an electric stove, 120 Hz in a lamp dimmer, from few kilohertz (kHz) to tens of kHz for a motor drive and well into the tens or hundreds of kHz in audio amplifiers and computer power supplies.The term duty cycle describes the proportion of 'on' time to the regular interval or 'period' of time; a low duty cycle corresponds to low power, because the power is off for most of the time. Duty cycle is expressed in percent, 100% being fully on.The main advantage of PWM is that power loss in the switching devices is very low. When a switch is off there is practically no current, and when it is on and power is being transferred to the load, there is almost no voltage drop across the switch. Power loss, being the product of voltage and current, is thus in both cases close to zero. PWM also works well with digital controls, which, because of their on/off nature, can easily set the needed duty cycle.PWM has also been used in certain communication systems where its duty cycle has been used to convey information over a communications channel.