Electricity: measuring and testing – Electrolyte properties – Using a battery testing device
Patent
1992-02-24
1995-05-16
Regan, Maura K.
Electricity: measuring and testing
Electrolyte properties
Using a battery testing device
363 79, G01N 27416
Patent
active
054164168
ABSTRACT:
A load test system for testing an engine/generator (12) and battery set (14) of a backup power system by simulating a load with desired linear, non-linear and/or reactive load characteristics. The load test system also recharges the battery set (14) after testing. Battery imbalance circuit (40) is connected to battery set (14) to determine whether bad cells are present therein. Controller (110) uses signals from current monitors (24, 125) to monitor the current, and isolation transformer (47) to monitor the AC line voltage. The controller (110) simulates a desired load by causing a rectifier (200) comprising thyristors to turn on at a selected point on the AC waveform and/or by causing a load bank (300) to draw a predetermined load current when a predetermined load voltage is present. Capacitive load circuit (28) selectively places a large capacitance across the DC bus (203). When the capacitance is present, surge current at thyristor turn-on simulates a non-linear or reactive load. The amount of surge current is determined by the turn-on point of the thyristors, the value of the capacitance, and the degree of discharge caused by the load bank (300).
REFERENCES:
patent: 2079500 (1937-05-01), Foos
patent: 2517575 (1950-08-01), Kelly
patent: 3348060 (1967-10-01), Jamieson
patent: 3356930 (1967-12-01), Lupoli et al.
patent: 3500167 (1970-03-01), Applegate et al.
patent: 3535608 (1970-10-01), Cramer et al.
patent: 3659184 (1972-04-01), Schwarz
patent: 3758839 (1973-09-01), Medlar
patent: 4037156 (1977-07-01), Goujon et al.
patent: 4065711 (1977-12-01), Kawabata
patent: 4146958 (1979-02-01), Groeschel
patent: 4272716 (1981-06-01), Etienne
patent: 4302714 (1981-11-01), Yefsky
patent: 4321523 (1982-03-01), Hammel
patent: 4335344 (1982-06-01), Gant
patent: 4352067 (1982-09-01), Ottone
patent: 4423379 (1983-12-01), Jacobs et al.
patent: 4507722 (1985-03-01), Dewan et al.
patent: 4536696 (1985-08-01), Ray
patent: 4629964 (1986-12-01), Ball
patent: 4639655 (1987-01-01), Westhaven et al.
patent: 4739225 (1958-04-01), Roberts et al.
patent: 4755733 (1988-07-01), Laliberte
patent: 5039931 (1991-08-01), Weiland
patent: 5041959 (1991-08-01), Walker
patent: 5111148 (1992-05-01), Senoo et al.
patent: 5220495 (1993-06-01), Zulaski
patent: 5285367 (1994-02-01), Keller
Victor Wouk, High Efficiency, High Power, Load Insensitive DC Chopper for Electronic Automobile Speed Control, IEEE Conference Record of Fourth Annual Meeting of Industry and General Applications Group, pp. 393-402 (1969)-Dec.
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