Abstract: A liquid-cooled resistor device including a block having a liquid inlet, a liquid outlet, and a cavity. The cavity is provided with a liquid flow path between the liquid inlet and the liquid outlet. The cavity can have an open side which is closed by a thermally conductive, electrically insulating flat layer. The flat layer can further support a flat resistor, the main plane of each being in parallel. The device can further include an electrically insulating blocking plate, fastenable to the block. The blocking plate can face the resistor to block the resistor on the flat layer. The device can also include a elastic pressing device positioned and configured to force the flat layer against the resistor.

Abstract: A change-over type of testing equipment for non-utility power generators, etc., includes a current-passing tank through which is charged with a resistance liquid, a main electrode disposed in the tank so as to receive power from the non-utility power generator to be tested, a movable insulator located between the main electrode and the tank to regulate the quantity of the current passing from the main electrode to the tank, a pipe system to cool or filter the resistance liquid within the tank for feeding the liquid back to the tank, thereby recycling the liquid, and a feed pipe connected to the pipe system on the upstream side of the tank to feed the liquid into the tank. The feed pipe serves as a holding member for holding the main electrode inserted into the tank from above and as a power supply member for supplying power from the non-utility power generator to be tested to the main electrode.

Abstract: A power supply testing system for non-utility power generators, etc. includes a test tank filled with a resistive liquid; a main electrode housed within the test tank to receive power from a non-utility power generator to be tested; a movable insulator member interposed between the main electrode and the test tank to regulate the amount of power supplied from the main electrode to the tank; and a piping system for cooling or filtering the resistive liquid within the test tank and returning it to the test tank, thereby recycling the resistive liquid. The main electrode is supported at an upper portion of the test tank and depends therefrom, and the piping system includes an inlet pipe located above the test tank for feeding the resistive liquid into the test tank, while power is supplied through said inlet pipe.

Abstract: A power supply testing system for a non-utility power generator, etc.

Abstract: The water rheostat has a main electrode unit including the main electrode shaped as a hollow cylinder and provided with an electrode water inlet port in the top of the hemispherical upper end portion of the electrode, electrode water outlet ports at equal intervals at the bottom of the electrode along the total circumference of the electrode. A sleeve resistant to arc discharge is fitted in the circular recess of the top portion of the support the main electrode unit so that the sleeve is in contact with the inside circumferential surface of the top portion and a circumferential gap is defined between the bottom of the main electrode and the inside circumferential surface of the top portion of the support.

Abstract: The water resistance load system which comprises a water resistor, which includes a cylindrical base electrode with a bottom for storing a predetermined quantity of water while water is circulated through the cylindrical base electrode and a cylindrical main electrode penetrating in an insulated state through the center of the bottom and extending into the base electrode, and an electrode water cooling unit, which includes a radiator through which warm water drained from the water resistor is passed to the water resistor, and a water spray tube, a fan and an air guide for spraying water to the radiator, air cooling the surface of said radiator by the latent heat of evaporation of the sprayed water, and guiding generated steam to be discharged into a space.

Abstract: The water resistance load system comprises a water resistor, which includes a cylindrical base electrode with a bottom for storing a predetermined quantity of water while water is circulated through the cylindrical base electrode and a cylindrical main electrode penetrating in an insulated state through the center of the bottom and extending into the base electrode, and an electrode water cooling unit, which includes a radiator through which warm water drained from the water resistor is passed to the water resistor, and a water spray tube, a fan and an air guide for spraying water to the radiator, air cooling the surface of the radiator by the latent heat of evaporation of the sprayed water, and guiding generated steam to be discharged into a space.

Abstract: Liquid rheostat system especially a water rheostat, employing the principle wherein electrical energy may be dissipated in the form of heat, by passing the electrical current through a liquid resistor or electrolyte, and wherein the apparatus is reasonably portable, inexpensive, and economical to operate and maintain. The invention readily compensates in use for variations in respective resistivity of fresh and/or brackish waters in a test mixture whereby to provide sufficient initial resistance as well as an adequate range of control of resistance, while maintaining current density within the desired limits. In use the heat energy developed is absorbed and removed by the controllable water mixture which in operation of the rheostat system continuously flows out of the rheostat.