DigiTrace® 910 Series Heat Trace Controller
... Operating at voltages less than design can cause serious loss of heater output. The alarming of preset voltage deviations ensures availability of sufficient wattage output. Power-Limiting The 910 will control the maximum output wattage if the full load power exceeds the specified Maximum Power Setpo ...
... Operating at voltages less than design can cause serious loss of heater output. The alarming of preset voltage deviations ensures availability of sufficient wattage output. Power-Limiting The 910 will control the maximum output wattage if the full load power exceeds the specified Maximum Power Setpo ...
Test Methodologies for Today`s Fastest Digital Data Interfaces
... – A TDR test coupon can be designed on to PCB for testing impedance and monitoring PCB production lots. – The coupon should use the same routing guidelines used for the Rambus channel to represent process. – The probe land pattern used with the coupon needs to match the type and method of TDR probin ...
... – A TDR test coupon can be designed on to PCB for testing impedance and monitoring PCB production lots. – The coupon should use the same routing guidelines used for the Rambus channel to represent process. – The probe land pattern used with the coupon needs to match the type and method of TDR probin ...
586 Capacity of Distribution Feeders for Hosting DER
... include the thermal ratings of network components, voltage regulation, short circuit level and power quality considerations, while additional constraints may arise from islanding considerations and the possibility for reversal of power flows. Thermal ratings: Each element of the distribution network ...
... include the thermal ratings of network components, voltage regulation, short circuit level and power quality considerations, while additional constraints may arise from islanding considerations and the possibility for reversal of power flows. Thermal ratings: Each element of the distribution network ...
Power Supplies - Peat Wholesale
... inverters use a pure sine wave to power mains equipment from either 12 or 24V battery. • Pure sine wave output • Soft start (Minimises inverter shutdown when using large inductive loads) • Reverse polarity protection • Short circuit and overload protection • Battery low/high shutdown • Over temperat ...
... inverters use a pure sine wave to power mains equipment from either 12 or 24V battery. • Pure sine wave output • Soft start (Minimises inverter shutdown when using large inductive loads) • Reverse polarity protection • Short circuit and overload protection • Battery low/high shutdown • Over temperat ...
SPM Synchronous Motor Protection and Control
... GE Digital Energy’s Quality Management System is registered to ISO9001:2008 QMI # 005094 UL # A3775 ...
... GE Digital Energy’s Quality Management System is registered to ISO9001:2008 QMI # 005094 UL # A3775 ...
Basics of Load Centers
... Residential Power Distribution...................................................4 ...
... Residential Power Distribution...................................................4 ...
MAX4919B/MAX4920B/MAX4921B Battery Power-Up Logic with Overvoltage and Overcurrent Protection General Description
... The MAX4919B/MAX4920B/MAX4921B feature an internal 1.8A (min) current-limiting switch (P2) at BTO. The current limit remains in effect throughout BTI’s input supply-voltage range. The current limit takes care of two situations: when P2 is initially turned on, and when P2 is already on and a short ci ...
... The MAX4919B/MAX4920B/MAX4921B feature an internal 1.8A (min) current-limiting switch (P2) at BTO. The current limit remains in effect throughout BTI’s input supply-voltage range. The current limit takes care of two situations: when P2 is initially turned on, and when P2 is already on and a short ci ...
Document
... The HP 66311A is a 45 Watt, high performance dc power source that provides dynamic measurement and analysis of voltage and current waveforms. It is designed to simplify the testing of digital wireless communications products. For example, data acquired using its dynamic measurement capability can be ...
... The HP 66311A is a 45 Watt, high performance dc power source that provides dynamic measurement and analysis of voltage and current waveforms. It is designed to simplify the testing of digital wireless communications products. For example, data acquired using its dynamic measurement capability can be ...
Mechanism Analysis and Experimental Validation of
... it has better performance than FACTS in terms of damping improvement [2–4]. In 1981, the first SMES application in a power system was successfully tested by the Bonneville Power Administration (BPA) [5]. In recent years, experimental projects with new types of SMES devices for power quality and stab ...
... it has better performance than FACTS in terms of damping improvement [2–4]. In 1981, the first SMES application in a power system was successfully tested by the Bonneville Power Administration (BPA) [5]. In recent years, experimental projects with new types of SMES devices for power quality and stab ...
Norcal Cover page
... Figure 84. Select the setup tab to get to this window. Select SoftRock, and set the center frequency... 60 Figure 85. Sheet used to calibrate the signal strength readings in Power SDR ....................................... 60 Figure 86. DSP/Image Reject tab used to null opposite sideband signal.... ...
... Figure 84. Select the setup tab to get to this window. Select SoftRock, and set the center frequency... 60 Figure 85. Sheet used to calibrate the signal strength readings in Power SDR ....................................... 60 Figure 86. DSP/Image Reject tab used to null opposite sideband signal.... ...
Ultra3000 Digital Servo Drives Installation Manual
... The 2098-DSD-HVxxx-xx drives can be powered with 230-240 V rms in order to be used in conjunction with motors designed for 230V operation. In such cases, the voltage levels used for shunting and DC bus overvoltage limits are adjusted to be compatible with the voltage limit of the motor. ...
... The 2098-DSD-HVxxx-xx drives can be powered with 230-240 V rms in order to be used in conjunction with motors designed for 230V operation. In such cases, the voltage levels used for shunting and DC bus overvoltage limits are adjusted to be compatible with the voltage limit of the motor. ...
Chapter 22 Performing Behavioral Modeling
... gates, or any system with a continuous algebraic transfer function. These functions may be in algebraic form or in the form of coordinate pairs. Digital stimulus files are useful features that allow you to enter a number of logic waveforms into the simulation deck without resorting to the awkward pr ...
... gates, or any system with a continuous algebraic transfer function. These functions may be in algebraic form or in the form of coordinate pairs. Digital stimulus files are useful features that allow you to enter a number of logic waveforms into the simulation deck without resorting to the awkward pr ...
SPM Synchronous Motor Protection and Control
... RELAY OUTPUTS ............................................................................................. 2-6 CURRENT TRANSFORMER INPUT ................................................................. 2-6 POWER FACTOR OUTPUT ........................................................................ ...
... RELAY OUTPUTS ............................................................................................. 2-6 CURRENT TRANSFORMER INPUT ................................................................. 2-6 POWER FACTOR OUTPUT ........................................................................ ...
User`s Guide - RIGOL Technologies, Inc.
... Connect the Probe Correctly. If a probe is used, the probe ground lead must be connected to earth ground. Do not connect the ground lead to high voltage. Improper way of connection could result in dangerous voltages being present on the connectors, controls or other surfaces of the oscilloscope and ...
... Connect the Probe Correctly. If a probe is used, the probe ground lead must be connected to earth ground. Do not connect the ground lead to high voltage. Improper way of connection could result in dangerous voltages being present on the connectors, controls or other surfaces of the oscilloscope and ...
AN10273 Power MOSFET single-shot and repetitive
... designed into its operation. However, repetitive avalanche refers to the applications where avalanche is an intended operation mode of the MOSFET. Here, avalanche is a designed function and is independent of the number of avalanche events. Any customer wishing to operate outside the current avalanch ...
... designed into its operation. However, repetitive avalanche refers to the applications where avalanche is an intended operation mode of the MOSFET. Here, avalanche is a designed function and is independent of the number of avalanche events. Any customer wishing to operate outside the current avalanch ...
DownMix User Manual 5.1 Surround Encoder
... DownMix is designed with redundancy in mind with two internal auto switching power supplies. Please connect DownMix to an uninterruptible power supply (UPS) to protect against power surges and low-voltage conditions. For maximum redundancy, connect each power supply to a separate UPS on different po ...
... DownMix is designed with redundancy in mind with two internal auto switching power supplies. Please connect DownMix to an uninterruptible power supply (UPS) to protect against power surges and low-voltage conditions. For maximum redundancy, connect each power supply to a separate UPS on different po ...
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.