Neutral Grounding Transformer And Resistor Descriptions:
Because of the fact that the fault currents at star point grounded mains should be limited, transformers/generators are grounded over star point
with neutral grounding resistors. In this way earth fault could be sensed by protection relays while limiting the current damage. Our neutral grounding
resistors could be manufactured at desired power and resistance values for transformer substations, wind power stations and generator application.
• There is no contrivance for zipping with micanite in order to contact routes of the resistors on plates.
• Resistor plates are mounted with steatite porcelain material.
• During transportion, there is no damage on the steatite bindings for resistor plates even on the rugged roads.
• Because of using steatite material instead of micanite, the resistors would not be damaged and would be ready for function even after the increase of fault
current and the increase of the temperature due to delay of the function of the relays.
• The voltage and eye control test and the observation of any damage of the isolated parts can be done easily with two doors design of the construction of the
Neutral Grounding Resistor.
• The enclosure of the Neutral Grounding Resistor is made of the hot dip galvanized steel sheet instead of galvanized steel sheet.
Advantages of Fullde Neutral Grounding Resistor:
1. The standard size of the switchgear design is beautiful, and the overall fit of the customer's field equipment.
2. Adopt high-quality nickel-chromium alloy resistance sheet, high power density, low temperature coefficient, good corrosion resistance.
3. Non-inductive processing technology to prevent eddy current inside the resistor.
4. Configure the transformer recorder, etc., the resistor can record the running status and provide remote monitoring function.
5. The resistance core adopts double insulation design to meet the fault current impact and maintain the insulation performance of the resistor.
Drawings of Neutral Grounding Transformer And Resistor :
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