11kv 480oum Neutral Grounding Resistor Cabinet for Transformer

 
Voluntary Standards

 

    DL/T780-2001        Neutral grounding resistors in electric power  distribution system

 

    GB6450                  Dry type Electric transformer

 

    DL/T620-1997        Over-voltage protection and insulation  coordination for AC equipment

 

    GB/T16927-1997   High-voltage testing technology

 

    GB1208-1997        Current transformer

 

    GB4208-1993        Protection level of enclosure(IP Code)

 

    IEE32-1972            Technology,terms and test of neutral grounding  resistors

 

    GB311.1-1997        Insulation coordination of high-voltage   transmitting and distribution equipment

 

    DL/T593-1996       Common order technical requirements of high- voltage switch equipment

 

    GB/T11022-1999    Electric equipment delivery testing criterion of electric device installation Other national

 

                                    criterion and electric power industry standards.

 

Operation Environment

 

Air Temperature:≥-35°C,≤+50°C

Altitude:≤1000m(general) 

Wind pressure: ≤700 Mpa(equal to wind speed at 34 m/s) 

Earthquake intensity: ≤magnitude 8 

lce cover: ≤15mm 

Air contamination level:≤IV 

Product Categories

 

The low resistance grounding resistor for electric power distribution networks 

The moderate resistance grounding resistor for electric power distribution networks 

The high resistance grounding resistor for electric power distribution networks 

The high resistance grounding resistor for generators

  

Parameters of products

 Voltage:0.4kV~110kV;

 Rated current:optional;

 Nominal resistance:optional;

 Current duration:10s,30s,60s,10min,continuous;

 Incoming and outing line:top in bottom out,bottom in bottom out,side in side out,side in bottom out,etc;

 Installation site:indoor/outdoor;

 Allowable temperature rise:760°C for 10s,30s,60s and 610°Cfor 10min and 385°C for continuous

 Zero sequence current transformer:optional

 

Packaging & Shipping

 

Packing, Transportation, Storage

The package should be placed on sleeper by normal position and fastened by bolt;

The cabinet should be covered with foam to be protected against dust and vapor during the transportation;

Keep the equipment in its original package when deliver to installation field, so as to prevent it from possible

damage during the transportation;

Fix it with fastener to prevent it from resistor looseness during the transportation;

Seal the box with lath;

Indicate delivery place, equipment name, weight etc on the packing box clearly;

All the boxes can be lifted to the common container by forklift;

Unload the goods with forklift or crane after its arrival;

Inspect the goods after unloading to make sure that the goods is in good condition.

kaging & Shipping

Packaging Details:each in foam box or Packaging Details:

wooden pakage

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