Resistor, method of assembling the same, and switchgear
AssigneeHitachi, Ltd.
InventorsAyumu Morita, Naoya Okada, Akitaka Shiina, Kenji Tsuchiya, Mitsuaki Yamamoto, Hiroaki Morii, Takao Yanagisawa
Life of this patent
Estimating the term…
Abstract
A resistor for suppressing magnetizing inrush current includes a container made of an insulating material and at least one resistive element housed in the container, the resistive element being connected to two bushings provided at the container, the outer surface of the container being coated with a conductive paint, and the paint being connected to the ground, thereby being able to be located between a cable and a switch, and being able to fix the outer surface thereof to a ground voltage level so that human contact safety is not impaired.
Claims12
A resistor comprising:
- a container made of an insulating material;
- and
- at least one resistive element housed in the container,
- wherein the resistive element is connected to two bushings provided at the container;
- wherein an outer surface of the container is coated with a conductive paint;
- wherein the paint is connected to a ground;
- wherein metal plates are located over and under the resistive element;
- wherein the metal plates are connected to conductors of the bushings respectively;
- wherein a spring is located over the metal plate located over the resistive element;
- wherein an insulating plug is located over the spring and a metal lid is located over the insulating plug;
- and
- wherein the spring is held compressed by the insulating plug.
Dependencies are inferred from the claim text.