VA, VAR and Power Factor – Fact or Fiction
... This is fine, but what about the polarity of VAR? What happens when more than one frequency is present? The polarity of VAR should be dependent on whether the load is capacitive or inductive, generally people use positive VAR for a capacitive load (Xitron uses this definition), but not everyone foll ...
... This is fine, but what about the polarity of VAR? What happens when more than one frequency is present? The polarity of VAR should be dependent on whether the load is capacitive or inductive, generally people use positive VAR for a capacitive load (Xitron uses this definition), but not everyone foll ...
Effect of Series Active Voltage Conditioners on Modernized Grid
... Figure 3-4 : AVC response to 30% (left) & 50% (right) voltage sags ............................. 16 Figure 3-5 : Phase relationships during normal and faulty conditions ............................. 18 Figure 3-6 : PLECS model for ABB AVC ............................................................. ...
... Figure 3-4 : AVC response to 30% (left) & 50% (right) voltage sags ............................. 16 Figure 3-5 : Phase relationships during normal and faulty conditions ............................. 18 Figure 3-6 : PLECS model for ABB AVC ............................................................. ...
ZLNB2015
... completely independent channels, each providing logic outputs to control LNB polarization selection, local oscillator selection and downfeed disable. It is intended use is in American voltage and tone controlled LNBs as well as high performance Twin, Quad and multiple feed Universal type LNBs, repla ...
... completely independent channels, each providing logic outputs to control LNB polarization selection, local oscillator selection and downfeed disable. It is intended use is in American voltage and tone controlled LNBs as well as high performance Twin, Quad and multiple feed Universal type LNBs, repla ...
7550 Burner Management System LMV5
... observed, there is a risk of electric shock hazard Ensure protection against electric shock hazard by providing adequate protection for the connection terminals and by securing the housing cover Each time work has been carried out (mounting, installation, service work, etc.), check to ensure that wi ...
... observed, there is a risk of electric shock hazard Ensure protection against electric shock hazard by providing adequate protection for the connection terminals and by securing the housing cover Each time work has been carried out (mounting, installation, service work, etc.), check to ensure that wi ...
PRM™ Regulator 28 Vdc Input
... VC port. A PRM VC port can drive a maximum of two (2) VTM VC ports. PC – Primary Control The PRM voltage output is enabled when the PC pin is open circuit (floating). To disable the PRM output voltage, the PC pin is pulled low. Open collector optocouplers, transistors, or relays can be used to contr ...
... VC port. A PRM VC port can drive a maximum of two (2) VTM VC ports. PC – Primary Control The PRM voltage output is enabled when the PC pin is open circuit (floating). To disable the PRM output voltage, the PC pin is pulled low. Open collector optocouplers, transistors, or relays can be used to contr ...
LEAK CURRENT HiTESTER ST5540/ST5541
... ● Patient leak current (between parts of device that come into contact with patient and ground) ● Patient leak current(external SIP/SOP voltage) ● Patient leak current(external voltage at specific F-type applied part) ● Patient leak current (current resulting from external voltage at parts of device ...
... ● Patient leak current (between parts of device that come into contact with patient and ground) ● Patient leak current(external SIP/SOP voltage) ● Patient leak current(external voltage at specific F-type applied part) ● Patient leak current (current resulting from external voltage at parts of device ...
MAX9155 Low-Jitter, Low-Noise LVDS Repeater in an SC70 Package General Description
... Note 1: All devices are 100% tested at TA = +25°C. Limits over temperature are guaranteed by design and characterization. Note 2: Current into a pin is defined as positive. Current out of a pin is defined as negative. All voltages are referenced to ground except VTH, VTL, VOD, and ∆VOD. Note 3: Guar ...
... Note 1: All devices are 100% tested at TA = +25°C. Limits over temperature are guaranteed by design and characterization. Note 2: Current into a pin is defined as positive. Current out of a pin is defined as negative. All voltages are referenced to ground except VTH, VTL, VOD, and ∆VOD. Note 3: Guar ...
TPA2008D2 数据资料 dataSheet 下载
... Audio specialists have advised for years not to apply a square wave to speakers. If the amplitude of the waveform is high enough and the frequency of the square wave is within the bandwidth of the speaker, the square wave could cause the voice coil to jump out of the air gap and/or scar the voice co ...
... Audio specialists have advised for years not to apply a square wave to speakers. If the amplitude of the waveform is high enough and the frequency of the square wave is within the bandwidth of the speaker, the square wave could cause the voice coil to jump out of the air gap and/or scar the voice co ...
An Introduction to SAFETY ANALYZER
... provision for protective earthing or reliance upon installation conditions ...
... provision for protective earthing or reliance upon installation conditions ...
MAX1647/MAX1648 Chemistry-Independent Battery Chargers _______________General Description ____________________________Features
... MAX1647 functions as a level 2 charger, compliant with the Duracell/Intel Smart Battery Charger Specification. The MAX1648 omits the SMBus serial interface, and instead sets the charge voltage and current proportional to the voltage applied to external control pins. In addition to the feature set re ...
... MAX1647 functions as a level 2 charger, compliant with the Duracell/Intel Smart Battery Charger Specification. The MAX1648 omits the SMBus serial interface, and instead sets the charge voltage and current proportional to the voltage applied to external control pins. In addition to the feature set re ...
Section #26 29 03
... CSA Type 1 sheet steel enclosure (sprinkler proof where required) with hinged padlockable access door, accommodating relays, timers, labels, as indicated, factory installed and wired to identified terminals. ...
... CSA Type 1 sheet steel enclosure (sprinkler proof where required) with hinged padlockable access door, accommodating relays, timers, labels, as indicated, factory installed and wired to identified terminals. ...
full text pdf
... for medium voltage applications, e.g. medium voltage electric drives [3, 4]. Such a wide range of application fields for a single topology makes it challenging to understand all important circuit selection and operation aspects. The challenge does not disappear even if advanced numerical circuit sim ...
... for medium voltage applications, e.g. medium voltage electric drives [3, 4]. Such a wide range of application fields for a single topology makes it challenging to understand all important circuit selection and operation aspects. The challenge does not disappear even if advanced numerical circuit sim ...
To Filter or Divert?
... To get a better understanding of the let through voltages associated with higher energy surges, 1.2/50us 20kV, 8/20us 9kA surges have been included. Lower let through voltages provide better protection for more sensitive equipment. Some surge protection manufacturers use lower voltage components to ...
... To get a better understanding of the let through voltages associated with higher energy surges, 1.2/50us 20kV, 8/20us 9kA surges have been included. Lower let through voltages provide better protection for more sensitive equipment. Some surge protection manufacturers use lower voltage components to ...
Power-On Reset and Related Supervisory
... some power supplies to ensure that the supply operates within its specified range. These same designers are unconcerned about the effect of a brownout condition. If a brownout occurs, the processor could encounter a supply voltage that falls below its minimum guaranteed operating voltage, but remain ...
... some power supplies to ensure that the supply operates within its specified range. These same designers are unconcerned about the effect of a brownout condition. If a brownout occurs, the processor could encounter a supply voltage that falls below its minimum guaranteed operating voltage, but remain ...
MAX31913 - Maxim Part Number Search
... and switches used in industrial, process, and building automation to 5V CMOS-compatible signals required by microcontrollers. It provides the front-end interface circuit of a programmable logic controller (PLC) digital input module. The device features integrated current limiting, lowpass filtering, ...
... and switches used in industrial, process, and building automation to 5V CMOS-compatible signals required by microcontrollers. It provides the front-end interface circuit of a programmable logic controller (PLC) digital input module. The device features integrated current limiting, lowpass filtering, ...
MX856/MX857
... IXYS Integrated Circuits Division makes no representations or warranties with respect to the accuracy or completeness of the contents of this publication and reserves the right to make changes to specifications and product descriptions at any time without notice. Neither circuit patent licenses nor ...
... IXYS Integrated Circuits Division makes no representations or warranties with respect to the accuracy or completeness of the contents of this publication and reserves the right to make changes to specifications and product descriptions at any time without notice. Neither circuit patent licenses nor ...
LV_Power_MOSFET - Renesas E
... conducting channel between the two other contacts called SOURCE [S] & DRAIN [D]. Gate voltage is denoted Vg A Power MOSFET can switch and conduct very high power levels, an is useful in power conversion circuits (i.e. boost voltage, decrease voltage , convert DC to AC, etc.) ...
... conducting channel between the two other contacts called SOURCE [S] & DRAIN [D]. Gate voltage is denoted Vg A Power MOSFET can switch and conduct very high power levels, an is useful in power conversion circuits (i.e. boost voltage, decrease voltage , convert DC to AC, etc.) ...
AND8054/D Designing RC Oscillator Circuits with Low
... microprocessor. If necessary, temperature correction can be ...
... microprocessor. If necessary, temperature correction can be ...
Touch and Remote Control Intelligent Safety Dimmer - TLC
... be connected to the terminal marked "Liveo" and the "load" wire to the terminal marked " ". To fit 2 gang (or 3 or 4 gang) dimmers treat each group of terminals at the back of the unit as a separate dimmer, wiring them into the lighting circuits as above. You may need a short length of wire to conne ...
... be connected to the terminal marked "Liveo" and the "load" wire to the terminal marked " ". To fit 2 gang (or 3 or 4 gang) dimmers treat each group of terminals at the back of the unit as a separate dimmer, wiring them into the lighting circuits as above. You may need a short length of wire to conne ...
Electrical substation
A substation is a part of an electrical generation, transmission, and distribution system. Substations transform voltage from high to low, or the reverse, or perform any of several other important functions. Between the generating station and consumer, electric power may flow through several substations at different voltage levels.Substations may be owned and operated by an electrical utility, or may be owned by a large industrial or commercial customer. Generally substations are unattended, relying on SCADA for remote supervision and control.A substation may include transformers to change voltage levels between high transmission voltages and lower distribution voltages, or at the interconnection of two different transmission voltages. The word substation comes from the days before the distribution system became a grid. As central generation stations became larger, smaller generating plants were converted to distribution stations, receiving their energy supply from a larger plant instead of using their own generators. The first substations were connected to only one power station, where the generators were housed, and were subsidiaries of that power station.