Solid-state electrical-power demand register and method

Patent · Tue Apr 02 04:00:00 EST 1985

OSTI ID:5387622

Coppola, R G; Stephens, G H

A solid-state demand register is described for determining the maximum electrical-power demand made on an electric utility by a load. The register, which employs a microprocessor, provides noncumulative, cumulative, and continuous-cumulative electrical-power demand measurement capabilities. The microprocessor, operating under a control program stored in a read-only memory, employs computing constants and generates computed results. A nonvolatile read/write memory, which stores the computing constants and computing results, is of the type that retains stored data even when deenergized. These constants and results can be visually displayed by an optoelectronic display. Error detection and correction of data are performed by the programmed microprocessor by means of an eight-bit Hamming code. The register further includes pulse generators for generating pulses indicative of the electrical-power demand and the end of a demand-monitoring time interval, and includes a controller for inhibiting the optoelectronic display when the ambient light adjacent the controller falls below a preselected threshold level.

• Assignee: Sangamo Weston Inc.
• Patent Number(s): US 4509128
• OSTI ID: 5387622
• Country of Publication: United States
• Language: English

Related Subjects

29 ENERGY PLANNING, POLICY, AND ECONOMY
296002* -- Energy Planning & Policy-- Electric Power Transmission & Distribution-- (-1989)
COMPUTER CALCULATIONS
COMPUTER CODES
COMPUTERS
DATA COVARIANCES
DISPLAY DEVICES
ELECTRIC UTILITIES
ELECTRONIC CIRCUITS
LOAD MANAGEMENT
MANAGEMENT
MEASURING INSTRUMENTS
MEMORY DEVICES
MICROELECTRONIC CIRCUITS
MICROPROCESSORS
MONITORING
PHYSICS
POWER DEMAND
PUBLIC UTILITIES
SOLID STATE PHYSICS