Neutral Grounding Resistor Cubicle Factory

Neutral Grounding Resistance Grounding Transformer,Resistance, Disconnector,Arrester Quality Wrranty IEEE32, IEC Resistive Load Neutral  Grounding Resistance for Protecting Transformer Standards Carried-Out

The design of the product complys with the flowing standard:

Dl/780-2001       distribution system neutal grounding resistor 

GB6450               dry-type power transformer  

Dl/T620-1997    overvoltage protection and insulation coordination of AC electrical equipment

GB/T16927-1997    high voltage testing technology

GB1208-1997       current transformer

GB4208-93         case protection grade  

IEEE32-1972 STANDARD  technonolies,terms,and experiments of neatal grounding equipments

GB311.1-1997      insulasion coordination of highvoltage transmission and distribution device

DL/T593-1996    common ordering technical conditions of higvoltage switch device

GB50150-1991      standards of electrical equipment handing-over and experiment of electrical device installment project

Service Condition

Generally applies to outdoors,used in the system of 50 Hz and 60 Hz.

The altitude shall not exceed 3500m.

Ambient temperature : -20°C~+70°C,Relative humidity:<=95%

Wind pressure is not above 700Mpa (amount to wind velocity 34m/s) 

Earthquake intensity : < 8

Thickness of ice coating: <10mm

Gradation for surface pollution of air : not above class IV

The air at the installation site shall be free from flammable gas, explosive gas,corrosive gas,and conductive dust.

As resistor is heating element,when use it ,the temperature will rise highly,so the installation of resistors should be in the place around with gap,to prevent the outside heat source.please attation,when installing and using.

Neutral Grounding Resistor Cubicle Factory