| 摘要 |
<p>1401547 Power distribution systems M BREITMEIER 4 May 1973 [5 May 1972] 21322/73 Addition to 1344186 Heading H2H An electrical power distribution system comprises a main line H1, secondary lines M1-M5, N1-N5 each coupled to the main line and including a pair of branch lines Z1, Z2, and an output regulator in one branch line of each pair of branch lines for regulating the power in each secondary line so that the terminal voltage thereof remains above a predetermined minimum value. Each line M1-M3 feeds a low energy consumption load such as a household having a load A comprising household appliances and a load H such as an electric heater. Each branch line Z2 includes the output regulator in the form of a voltage regulator R1 and each branch line Z1 includes a power meter 3 and a power limiter 4 which keeps the power in the line Z1 below a maximum value. The terminal voltage of each secondary line is monitored by a voltmeter V and the regulator R1 compares this voltage with the predetermined minimum value to deliver only enough power to the line Z2 so that the actual terminal voltage is not less than this minimum value. The meter 3 supplies an output signal to the regulator R1 so that the regulator supplies power to the line Z2 equal to the difference between the maximum power for the secondary line M1 and the actual power in line Z1. The lines N1-N5 supply high energy consumption loads and voltage regulators L1- L3, which are similar to the regulators R1-R3, receive additional control signals from a control device S. The main line H1 includes a power meter M which supplies an output signal to the device S to enable this device to control the regulators L1-L3 so that in the event of an overload in the main line H1, the acceptable output in the branch line Z2 is reduced.</p> |
