
requirements for grid interconnection of renewable generation systems
... PRG = PL + Pout1 - Pin1 Pin – power received from the grid for critical and non critical loads Pout – excess power from renewable generating system to grid Pin1 – power received from the grid for critical loads Pout1 – power from renewable generating system not used by critical loads PL – power to c ...
... PRG = PL + Pout1 - Pin1 Pin – power received from the grid for critical and non critical loads Pout – excess power from renewable generating system to grid Pin1 – power received from the grid for critical loads Pout1 – power from renewable generating system not used by critical loads PL – power to c ...
General Specifications MODEL UT420 Digital Indicating Controller
... Model UT420 Digital Indicating Controller is a simple, micro-processor based digital indicating controller with basic control capability and the user-friendly 5-digit large numerical display. The UT420 features as standard many functions which are necessary for various control applications, and all ...
... Model UT420 Digital Indicating Controller is a simple, micro-processor based digital indicating controller with basic control capability and the user-friendly 5-digit large numerical display. The UT420 features as standard many functions which are necessary for various control applications, and all ...
ACCURACY ANALYSIS OF VOLTAGE DIP MEASUREMENT
... followed by voltage recovery after a short period of time (dip duration), from half a cycle to a few seconds. The lowest rms value measured during the event is called residual voltage. The measured quantity for event detection could be either phase to ground voltage and/or phase to phase voltage wit ...
... followed by voltage recovery after a short period of time (dip duration), from half a cycle to a few seconds. The lowest rms value measured during the event is called residual voltage. The measured quantity for event detection could be either phase to ground voltage and/or phase to phase voltage wit ...
Winding pitch
... 5/6 winding pitch as standard, with 2/3 winding pitch available as an option. The optimum winding pitch depends on the application and how the generator will be used. The main factors to consider are whether the generator will be operated in parallel with others, and what type of grounding system wi ...
... 5/6 winding pitch as standard, with 2/3 winding pitch available as an option. The optimum winding pitch depends on the application and how the generator will be used. The main factors to consider are whether the generator will be operated in parallel with others, and what type of grounding system wi ...
说明书ZX7-400.500.630IGBT Inverter DC Arc Welding Machine
... This machine including: shell, inner part, handle and base, while the inner part include: cooling fan, main transformer, IGBT modules, filter reactor, fast recovery diode modules and PCBs etc. ...
... This machine including: shell, inner part, handle and base, while the inner part include: cooling fan, main transformer, IGBT modules, filter reactor, fast recovery diode modules and PCBs etc. ...
AP5727 BIAS POWER SUPPLY FOR OLED SUB DISPLAY AND TFT-LED
... The forward voltage drop of a Schottky diode represents the conduction loss in the diode, while the diode capacitance (CT) represents the switching loss. For diode selection, both forward voltage drop and diode capacitance need to be considered. Schottky diodes with higher current ratings usually ha ...
... The forward voltage drop of a Schottky diode represents the conduction loss in the diode, while the diode capacitance (CT) represents the switching loss. For diode selection, both forward voltage drop and diode capacitance need to be considered. Schottky diodes with higher current ratings usually ha ...
Study Guide for the Source Inspection of Electrical Equipment
... This guide has been developed to identify references in the existing Body of Knowledge (BOK) as a resource for individuals studying to take the API Source Inspector Certification examination. Source inspectors wishing to take the exam for API certification are responsible for being familiar with the ...
... This guide has been developed to identify references in the existing Body of Knowledge (BOK) as a resource for individuals studying to take the API Source Inspector Certification examination. Source inspectors wishing to take the exam for API certification are responsible for being familiar with the ...
LM285-2.5, LM385-2.5, LM385B-2.5
... reference applications. The wide dynamic operating temperature range accommodates varying current supplies, with excellent regulation. The extremely low power drain of this series makes them useful for micropower circuitry. These voltage references can be used to make portable meters, regulators, or ...
... reference applications. The wide dynamic operating temperature range accommodates varying current supplies, with excellent regulation. The extremely low power drain of this series makes them useful for micropower circuitry. These voltage references can be used to make portable meters, regulators, or ...
Nuheat Controls - Needham Electric Supply
... Element Thermostat — Non-Programmable Control The Nuheat Element thermostat is a non-programmable control that offers simple on/off capability for the Nuheat floor heating system. The thermostat offers the most basic type of control and features energy usage information, dual voltage compatibility ...
... Element Thermostat — Non-Programmable Control The Nuheat Element thermostat is a non-programmable control that offers simple on/off capability for the Nuheat floor heating system. The thermostat offers the most basic type of control and features energy usage information, dual voltage compatibility ...
TPS7B4250-Q1 Pin FMEA
... The TPS7B4250-Q1 device is a monolithic, integrated low-dropout voltage tracker. The device is available in an SOT-23 package. The TPS7B4250-Q1 device is designed to supply off-board sensors in an automotive environment. The IC has integrated protection for overload, over temperature, reverse polari ...
... The TPS7B4250-Q1 device is a monolithic, integrated low-dropout voltage tracker. The device is available in an SOT-23 package. The TPS7B4250-Q1 device is designed to supply off-board sensors in an automotive environment. The IC has integrated protection for overload, over temperature, reverse polari ...
Improving common-mode rejection using the right
... through the skin. EMI can also couple to the ECG system through coupling capacitors C2 and CT as shown in Figure 1. Furthermore, It can be coupled to the system through a power coupling capacitor, CC, and in some cases through the long ECG signal measuring cables and protection circuitry that are us ...
... through the skin. EMI can also couple to the ECG system through coupling capacitors C2 and CT as shown in Figure 1. Furthermore, It can be coupled to the system through a power coupling capacitor, CC, and in some cases through the long ECG signal measuring cables and protection circuitry that are us ...
GAL18V10 Data Sheet
... buffer drive either true (active high) or inverted (active low). Output tri-state control is available as an individual product-term for each output, and may be individually set by the compiler as either “on” (dedicated output), “off” (dedicated input), or “product-term driven” (dynamic I/O). Feedba ...
... buffer drive either true (active high) or inverted (active low). Output tri-state control is available as an individual product-term for each output, and may be individually set by the compiler as either “on” (dedicated output), “off” (dedicated input), or “product-term driven” (dynamic I/O). Feedba ...
Protecting Silicon Laboratories ProSLIC® Family with Bourns
... and low voltage VBAT / VBLO battery supplies. These SLICs have been designed to switch between the two voltage options for the on-hook and ringing states. The regulated high voltage can be a maximum of -94.5 V and the low battery, 24 V. Both require a source current capability of 250 mA. These negat ...
... and low voltage VBAT / VBLO battery supplies. These SLICs have been designed to switch between the two voltage options for the on-hook and ringing states. The regulated high voltage can be a maximum of -94.5 V and the low battery, 24 V. Both require a source current capability of 250 mA. These negat ...
BD81000MUV
... ・Control and Power-Good function When the control pin (EN1, EN2, EN3) is set to low-level input, the relevant block will stop operation. When EN1 is High, VDD1 will activate. When EN2 is H, VDD2 will activate. When EN3 is High, AVDD・HVLDO・VCOM・VGH・VGL will activate. The control pin is internally pul ...
... ・Control and Power-Good function When the control pin (EN1, EN2, EN3) is set to low-level input, the relevant block will stop operation. When EN1 is High, VDD1 will activate. When EN2 is H, VDD2 will activate. When EN3 is High, AVDD・HVLDO・VCOM・VGH・VGL will activate. The control pin is internally pul ...
I RLY 1 E
... segments into the skin of the patient 21. Similarly, the FIG. 1 is a block diagram of a switch apparatus incor movable contact 5 of the relay RLY-l is connected to porating the present invention. resistors R3 and R4 connected in parallel to leads 61, 62 and FIG. 2 is a block diagram of the adapter u ...
... segments into the skin of the patient 21. Similarly, the FIG. 1 is a block diagram of a switch apparatus incor movable contact 5 of the relay RLY-l is connected to porating the present invention. resistors R3 and R4 connected in parallel to leads 61, 62 and FIG. 2 is a block diagram of the adapter u ...
1N5820 - 1N5822 Features and Benefits Mechanical Data
... Customers represent that they have all necessary expertise in the safety and regulatory ramifications of their life support devices or systems, and acknowledge and agree that they are solely responsible for all legal, regulatory and safety-related requirements concerning their products and any use o ...
... Customers represent that they have all necessary expertise in the safety and regulatory ramifications of their life support devices or systems, and acknowledge and agree that they are solely responsible for all legal, regulatory and safety-related requirements concerning their products and any use o ...
Variable-frequency drive

A variable-frequency drive (VFD) (also termed adjustable-frequency drive, variable-speed drive, AC drive, micro drive or inverter drive) is a type of adjustable-speed drive used in electro-mechanical drive systems to control AC motor speed and torque by varying motor input frequency and voltage.VFDs are used in applications ranging from small appliances to the largest of mine mill drives and compressors. However, around 25% of the world's electrical energy is consumed by electric motors in industrial applications, which are especially conducive for energy savings using VFDs in centrifugal load service, and VFDs' global market penetration for all applications is still relatively small. That lack of penetration highlights significant energy efficiency improvement opportunities for retrofitted and new VFD installations.Over the last four decades, power electronics technology has reduced VFD cost and size and has improved performance through advances in semiconductor switching devices, drive topologies, simulation and control techniques, and control hardware and software.VFDs are available in a number of different low- and medium-voltage AC-AC and DC-AC topologies.