Earthing resistors
It is important to note that operational earthing and protective earthing should be considered separately. While operational earthing establishes a connection between the active parts and the earthing system, protective earthing is used to protect people from electric shock. Protective earthing consists of conductive parts that are connected to the housing of electrical equipment in order to provide a safe discharge path for the current in the event of a fault.
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GINO earthing resistors consist of resistor packs with cast iron resistor elements with or without surface protection or stainless steel grid elements. Alternatively, earthing resistors with all other resistor designs can also be offered and manufactured.
It is important to note that operational earthing and protective earthing should be considered separately. While operational earthing establishes a connection between the active parts and the earthing system, protective earthing is used to protect people from electric shock. Protective earthing consists of conductive parts that are connected to the housing of electrical equipment in order to provide a safe discharge path for the current in the event of a fault.
It is important to note that operational earthing and protective earthing should be considered separately. While operational earthing establishes a connection between the active parts and the earthing system, protective earthing is used to protect people from electric shock. Protective earthing consists of conductive parts that are connected to the housing of electrical equipment in order to provide a safe discharge path for the current in the event of a fault.
Earthing resistors are an important component of electrical systems. They ensure the safe discharge of electrical currents and help to guarantee operational safety. The correct use of operational earthing and protective earthing can minimize the risk of electric shocks and other electrical hazards.
In addition to the conductor voltage to earth, the parameters are
The capacity of the resistor is expressed by the current-time integral [i2t] = kA2s.
The insulation of the resistors is rated for the system voltage. System voltages are 12, 24, 36 and 52 kV. Depending on the climatic conditions, the risk of soiling and the geodetic height at the installation site, increased air and creepage distances may need to be provided.
The earthing resistance is important to ensure the safe discharge of electrical currents. It serves as a protective mechanism to neutralize potentially dangerous voltages and minimize the risk of electric shocks. A low earthing resistance enables efficient discharge of current to earth, which ensures the stability and safety of electrical installations.
Resistors for indoor installation in electrical operating rooms are manufactured with protection class IP00 or IP20. Important: For outdoor installation, protection class IP23 is required as a minimum. Higher degrees of protection are problematic in view of the limited ventilation due to the thermal load on components, insulators and housings.
The maximum temperature must be agreed between the manufacturer and user in accordance with IEEEStd32-1972. Depending on the resistor material used, high temperatures do not pose a problem for the resistor itself.
Special protective measures are only required:
Special measures must be taken to protect these components against excessive heating.
It is important to note that operational earthing and protective earthing should be considered separately. While operational earthing establishes a connection between the active parts and the earthing system, protective earthing is used to protect people from electric shock. Protective earthing consists of conductive parts that are connected to the housing of electrical equipment in order to provide a safe discharge path for the current in the event of a fault.
Earthing resistors are an important component of electrical systems. They ensure the safe discharge of electrical currents and help to guarantee operational safety. The correct use of operational earthing and protective earthing can minimize the risk of electric shocks and other electrical hazards.
Click through our brochure on earthing resistors with system or contact us directly. We look forward to hearing from you.
Thomas Lobjinski
Phone: +49 (0) 228 98986-72
Email: thomas.lobjinski@gino.de
Tim Lehmann
Phone: +49 (0) 228 98986-73
Email: tim.lehmann@gino.de