16480 VARIABLE SPEED DRIVES
... 13. Motor Stall protection shall be programmable to provide a warning or stop the drive after the motor has operated above a programmed torque level for a programmed time limit. 14. Underload / loss-of-load (broken drive belt or coupling): The drive shall be programmable to signal the loss-of-load c ...
... 13. Motor Stall protection shall be programmable to provide a warning or stop the drive after the motor has operated above a programmed torque level for a programmed time limit. 14. Underload / loss-of-load (broken drive belt or coupling): The drive shall be programmable to signal the loss-of-load c ...
bolt heating equipment
... because of the longitudinal expansion which occurs under operating conditions. This pretensioning of the bolts can be achieved by either. The application of suitably high mechanical force to the bolts when cold or heating the bolts and screwing down the nuts while in this hot condition. The joint fl ...
... because of the longitudinal expansion which occurs under operating conditions. This pretensioning of the bolts can be achieved by either. The application of suitably high mechanical force to the bolts when cold or heating the bolts and screwing down the nuts while in this hot condition. The joint fl ...
Connection and Operation (Pulse input type)
... 5 VDC. If voltage exceeding 5 VDC is applied, connect an external resistor R1 so that the current is 7 to 20 mA. Example) When V0 is 24 VDC, R1: 1.5 to 2.2 kΩ, 0.5 W min. ● Output Signal Check the specifications of the connected devices. If the current exceeds 10 mA, connect the external resistor R ...
... 5 VDC. If voltage exceeding 5 VDC is applied, connect an external resistor R1 so that the current is 7 to 20 mA. Example) When V0 is 24 VDC, R1: 1.5 to 2.2 kΩ, 0.5 W min. ● Output Signal Check the specifications of the connected devices. If the current exceeds 10 mA, connect the external resistor R ...
DEC Module 50/5 Operating Instructions
... • The output stage can be enabled or disabled • Maximum output current limit adjustable up to 10 A • Motor speed can be monitored with the «Monitor n» output • Status indication via «Ready»output • Blockage protection (current limit for blocked motor) • Protective functions: undervoltage, over ...
... • The output stage can be enabled or disabled • Maximum output current limit adjustable up to 10 A • Motor speed can be monitored with the «Monitor n» output • Status indication via «Ready»output • Blockage protection (current limit for blocked motor) • Protective functions: undervoltage, over ...
Test Instrumentation & Automated Test Systems Power Conversion Hipot / Safety Component
... The19032 performs six dielectric tests in one unit including AC/DC Hipot, Insulation Resistance, Ground Bond, Leakage Current and Dynamic Function tests for compliance testing of IEC, UL, TUV, CSA, EN and other standards. The time-saving TwinPort™ feature performs Hipot and Ground Bond simultaneousl ...
... The19032 performs six dielectric tests in one unit including AC/DC Hipot, Insulation Resistance, Ground Bond, Leakage Current and Dynamic Function tests for compliance testing of IEC, UL, TUV, CSA, EN and other standards. The time-saving TwinPort™ feature performs Hipot and Ground Bond simultaneousl ...
D Series - Dual-Lite
... Requires a provided external transformer for 208VAC or 240VAC input. Refer to Specifications table for available Input/Output voltage combinations. Other voltages available. Consult factory. External transformer may be provided. Loading may not exceed 50% of the system’s total rating on any 120VAC l ...
... Requires a provided external transformer for 208VAC or 240VAC input. Refer to Specifications table for available Input/Output voltage combinations. Other voltages available. Consult factory. External transformer may be provided. Loading may not exceed 50% of the system’s total rating on any 120VAC l ...
Inside the Power Supply
... • Current rating of the bridge is just the input current of the power supply. • Diodes tend to “snap off” when there is no PFC stage, since they turn off abruptly at the end of each charging peak. With PFC, the current decreases sinusoidally to zero at the end of each half cycle of the input voltage ...
... • Current rating of the bridge is just the input current of the power supply. • Diodes tend to “snap off” when there is no PFC stage, since they turn off abruptly at the end of each charging peak. With PFC, the current decreases sinusoidally to zero at the end of each half cycle of the input voltage ...
FRENIC-EcoPAK NonBypass EngSpec_FECA-TE-103E
... G. In the event of a momentary loss of power, the drive shall be programmable to restart once power is returned H. Low and high drive output frequency limits shall be adjustable from 0Hz to 120Hz. I. The drive shall be capable of stopping the motor by the selection of DC injection braking. The brak ...
... G. In the event of a momentary loss of power, the drive shall be programmable to restart once power is returned H. Low and high drive output frequency limits shall be adjustable from 0Hz to 120Hz. I. The drive shall be capable of stopping the motor by the selection of DC injection braking. The brak ...
3000/ 3000LC/ 2000 SERIES CIRCUIT BOARD DESCRIPTION
... INTERRUPTING THE POWER ON 1 & 2 UNLOCKS THE DOOR. THE DOOR WILL RELOCK AFTER THE DURATION OF THE TD. ...
... INTERRUPTING THE POWER ON 1 & 2 UNLOCKS THE DOOR. THE DOOR WILL RELOCK AFTER THE DURATION OF THE TD. ...
Versatile Unified Power Quality Conditioner
... 1. It is comprised of both Three-Leg (3-Leg) and Four-Leg (4Leg) PWM converters sharing the same DC-link. The UPQC is connected between a 3P3W power supply distribution system and a 3P4W plant site composed of several types of three-phase and single-phase loads. It is assumed that the single-phase l ...
... 1. It is comprised of both Three-Leg (3-Leg) and Four-Leg (4Leg) PWM converters sharing the same DC-link. The UPQC is connected between a 3P3W power supply distribution system and a 3P4W plant site composed of several types of three-phase and single-phase loads. It is assumed that the single-phase l ...
document
... Hazards of Primary Single-Phasing for a Three-Phase Motor Probably the most damaging single-phase condition is when one phase of the primary side of WYE/DELTA or DELTA/WYE transformer is open. Usually these causes are not within the control of the user who purchases electrical power. When primary si ...
... Hazards of Primary Single-Phasing for a Three-Phase Motor Probably the most damaging single-phase condition is when one phase of the primary side of WYE/DELTA or DELTA/WYE transformer is open. Usually these causes are not within the control of the user who purchases electrical power. When primary si ...
Ultra Low Noise Power Supply Products
... 910 series Ultra Isolation Transformer J910 series protect sensitive electronic equipment against electrical noise disturbances. These disturbances, from such sources as lightning, utility network switching and the operation of electric motors, are the most prevalent and most troublesome of all AC p ...
... 910 series Ultra Isolation Transformer J910 series protect sensitive electronic equipment against electrical noise disturbances. These disturbances, from such sources as lightning, utility network switching and the operation of electric motors, are the most prevalent and most troublesome of all AC p ...
Electrical - C:\4M\CALC\TESTELE
... where Ι in kA, A is the wire cross section and t the short-circuit duration The panel short-circuit current is calculated using the following formula: ...
... where Ι in kA, A is the wire cross section and t the short-circuit duration The panel short-circuit current is calculated using the following formula: ...
3000/ 3000lc/ 2000 series circuit board description
... INTERRUPTING THE POWER ON 1 & 2 UNLOCKS THE DOOR. THE DOOR WILL RELOCK AFTER THE DURATION OF THE TD. ...
... INTERRUPTING THE POWER ON 1 & 2 UNLOCKS THE DOOR. THE DOOR WILL RELOCK AFTER THE DURATION OF THE TD. ...
Measurement of phase angles of voltage and
... Interharmonic centered subgroup acc. IEC 61000-4-7/IEC 61000-4-30 ...
... Interharmonic centered subgroup acc. IEC 61000-4-7/IEC 61000-4-30 ...
Observation of state variables in resonant DC-DC converter
... their various variants, have been given a great deal of interest in the power electronic literature. Compared to (hard) switched converters, SRC converters present several advantages e.g. they provide much higher power supplies. As they do not involve switched components, power losses are considerab ...
... their various variants, have been given a great deal of interest in the power electronic literature. Compared to (hard) switched converters, SRC converters present several advantages e.g. they provide much higher power supplies. As they do not involve switched components, power losses are considerab ...
pub3241fbasicsofonsitepumpingplantevaluations
... The output horsepower from the engine or motor also serves as the input horsepower to the pump and is used to evaluate the combined pump and well efficiency. The required horsepower for a pump during any given pumping condition is calculated using the water horsepower equation based on water flow, p ...
... The output horsepower from the engine or motor also serves as the input horsepower to the pump and is used to evaluate the combined pump and well efficiency. The required horsepower for a pump during any given pumping condition is calculated using the water horsepower equation based on water flow, p ...
30 kHz - 300 kHz
... of AIRDUCER™ Transducers Designed for fast and easy evaluation of Airmar’s Ultrasonic Transducers, we are pleased to offer our versatile, T1 Transceiver Module. The entire frequency range of 30 kHz to 300 kHz Airmar transducers can be driven by the T1. With transmit voltage output of 400 Vpp and adj ...
... of AIRDUCER™ Transducers Designed for fast and easy evaluation of Airmar’s Ultrasonic Transducers, we are pleased to offer our versatile, T1 Transceiver Module. The entire frequency range of 30 kHz to 300 kHz Airmar transducers can be driven by the T1. With transmit voltage output of 400 Vpp and adj ...
New Concept for Class D Audio Amplifiers for
... where the two windings are magnetically coupled, referred to as a D-inductor. In this configuration, the magnetizing inductances are cancelled out due to the opposing direction of equal load currents in the two windings. To achieve the same cut-off filter frequency, inductances need to be the same v ...
... where the two windings are magnetically coupled, referred to as a D-inductor. In this configuration, the magnetizing inductances are cancelled out due to the opposing direction of equal load currents in the two windings. To achieve the same cut-off filter frequency, inductances need to be the same v ...
The Converter Command for the Doubly
... exploited wind resources and to the fact that it is a clean and environmental friendly energy source with a reduced cost of installation and maintenance the wind turbines based on the doubly-fed induction generators (DFIG) is an attractive solution for the wind power generation [4]. Where the rotor ...
... exploited wind resources and to the fact that it is a clean and environmental friendly energy source with a reduced cost of installation and maintenance the wind turbines based on the doubly-fed induction generators (DFIG) is an attractive solution for the wind power generation [4]. Where the rotor ...
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.