Increasing DER Hosting Capacity in Meshed Low-Voltage Grids With Modified Network Protector Relay Settings
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Azzolini, Joseph Anthony↗
SEARCH · Engineering Papers
Results for “Relays”
Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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Instant Arc Detection to Reduce Wildfire Ignition with Fast Protective Relaying
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Reno, Matthew J.↗
How Inverter-Based Resources (IBRs) Affect Protection Relay Elements
This presentation starts with the details of IEEE 2800-2022 requirements of IBR for balanced and unbalanced faults. Then, it shows how to design a droop based GFM control to be IEEE 2800-2022 compliant. An performance evaluation is carried out to see if three OEM GFM inverters 2800-2022 compliant or not. And finally we show how IEEE 2800-2022 complaint and non-compliant GFM inverter will impact the transmission line protection elements, such as directional element and FID. Finally, recommendations are made if the GFM is not IEEE 2800-2022 compliant to disable the protection elements that rely on reliable and regulated negative sequence current.
24 POWER TRANSMISSION AND DISTRIBUTION↗
AN ULTRA FAST RELAY PROTOTYPE FOR LOW IMPEDANCE FAULT PROTECTION IN POWER DISTRIBUTION SYSTEMS
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Jimenez Aparicio, Miguel [Sandia National Laborato↗
Examining the Accuracy of Differenced One-Way Doppler Orbit Determination Derived from Range-Only Relay Satellite Tracking
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Ashok Kumar Verma↗
Traveling-wave tube circuit simplifies microwave relay
Circuit with a sawtooth-modulated traveling-wave tube, which acts as a frequency converter and as an amplifier, simplifies microwave transmission. Lower power losses and reduced size and weight are also realized in this circuit.
Allen, W. K.↗
Analysis of mars entry with consideration of separation and line-of-sight relay communication for bus-capsule combinations
Mission analysis of Mars soft landing with line- of-sight communication between flyby bus and entry capsule - atmospheric entry
SOFT LANDING↗
Stability analysis of relay-control systems via the direct method of lyapunov
Computational technique for constructing Liapunov functions for estimating domain of asymptotic stability of nonlinear control systems
NONLINEAR SYSTEM↗
Optimal control in second-order relay-pulse systems
Automatic control of two-dimensional motion of material point described by two finite difference equations
DIFFERENCE EQUATION↗
Some design considerations for planetary relay communications satellites.
Items affecting information transmitted from payload landed on remote planet to Earth via communications satellite including orbit, transmission policy and orbit injection error effect on communication capability
PAYLOAD↗
Some design considerations for planetary relay communications satellites.
Items affecting information transmitted from payload landed on remote planet to earth via communications satellite including orbit, transmission policy and orbit injection error effect on communication capability
SATELLITE ORBIT↗
Vibration testing and dynamic studies of relays
Study has been undertaken to determine the separation criteria for a preloaded, idealized set of contacts when they are subjected to a steady-state sinusoidal excitation and when the elasticity of one contact is nonlinear. The study consists of two phases, theoretical and experimental.
Source record↗
Relay binary circuit Patent
Counter-divider circuit for accuracy and reliability in binary circuits
Currie, R. E., Jr.↗
The relay of Omega navigation signals by satellite to a central processing facility
Omega Position Location Equipment /OPLE/ system, testing operational feasibility of centralized global meteorological data collection system
Laughlin, C. R.↗
Collection and relay of earth resources data
Satellite system applicability to earth resources data collection from in situ sensors, discussing synoptic, local time, emergency and demand data collection
Dorfman, S. D.↗
Television broadcast relay system
Data handling method for satellite TV broadcast system design, and data analysis and plotting by computer techniques
Graf, E. R.↗
On the problem of stability of relay systems for automatic control
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Alimov, Yu. I.↗
Rotary relay for space power transfer
The power clutch presented is designed for the transfer of electrical signals and power across rotating joints. Radio noise, friction, and wear are virtually eliminated. The design, construction, and applications are discussed. This clutch eliminates the need of recycling solar arrays once each orbit by recycling only a low-inertia component of the power system.
Haynie, H. T.↗