SPD LTDS Appendix 4 Fault Levels (Table 4)

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Dataset schema

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Grid Supply Point
The unique name of the Grid Supply Point (GSP) a  substation is within.

No description available for this field.

Name (identifier)
grid_supply_point
Type
text
Sample
                       
Substation
An electrical substation is a subsidiary station of a distribution system where voltage is transformed from high to low or the reverse using transformers and/or where circuit switching takes place.

No description available for this field.

Name (identifier)
substation
Type
text
Sample
                       
Voltage (kV)
The operating voltage of the asset.

HV >= 6.6kV and < 33kV

EHV = 33kV

Transmission: Generally 132kV and above, but includes some lower voltages managed by our SPT licence area.

No description available for this field.

Name (identifier)
voltage_kv
Type
integer
Sample
                       
R (Ohm) % on 100MVA
Resistance shown as a percentage.

No description available for this field.

Name (identifier)
r_ohm_on_100mva
Type
decimal
Sample
                       
X (Ohm) % on 100MVA
Reactance shown as a percentage.

No description available for this field.

Name (identifier)
x_ohm_on_100mva
Type
decimal
Sample
                       
Calculated 3 phase Peak Make (kA)
Calculated 3 phase peak make current in kA.

No description available for this field.

Name (identifier)
calculated_3_phase_peak_make_ka
Type
decimal
Sample
                       
Calculated 3 phase RMS Break (kA)
Calculated 3 phase RMS break current in kA.

No description available for this field.

Name (identifier)
calculated_3_phase_rms_break_ka
Type
decimal
Sample
                       
Calculated single phase Peak Make (kA)
Calculated single phase peak make current in kA.

No description available for this field.

Name (identifier)
calculated_single_phase_peak_make_ka
Type
decimal
Sample
                       
Calculated single phase RMS Break (kA)
Calculated single phase RMS break current in kA.

No description available for this field.

Name (identifier)
calculated_single_phase_rms_break_ka
Type
decimal
Sample
                       
Equipment Rating Peak Make (kA)
Equipment peak make rating in kA.

No description available for this field.

Name (identifier)
equipment_rating_peak_make_ka
Type
decimal
Sample
                       
Equipment Rating RMS Break (kA)
Equipment RMS break rating in kA.

No description available for this field.

Name (identifier)
equipment_rating_rms_break_ka
Type
decimal
Sample
                       
Calculated above 95% of rating
Whether the calculated make or break currents are above 95% of equipment rating shown as TRUE or FALSE.

No description available for this field.

Name (identifier)
calculated_above_95_of_rating
Type
text
Sample
                       

JSON Schema

The following JSON object is a standardized description of your dataset's schema. More about JSON schema.

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  • "title":"spd-ltds-appendix-4-fault-levels-table-4",
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              • "description":"The unique name of the Grid Supply Point (GSP) a substation is within."
              }
              ,
            • "substation":
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              • "type":"string",
              • "title":"Substation",
              • "description":"An electrical substation is a subsidiary station of a distribution system where voltage is transformed from high to low or the reverse using transformers and/or where circuit switching takes place."
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              • "type":"integer",
              • "title":"Voltage (kV)",
              • "description":"The operating voltage of the asset. HV >= 6.6kV and < 33kV EHV = 33kV Transmission: Generally 132kV and above, but includes some lower voltages managed by our SPT licence area."
              }
              ,
            • "r_ohm_on_100mva":
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              • "title":"R (Ohm) % on 100MVA",
              • "description":"Resistance shown as a percentage."
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              ,
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              • "title":"Calculated 3 phase RMS Break (kA)",
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              • "type":"number",
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              • "description":"Equipment peak make rating in kA."
              }
              ,
            • "equipment_rating_rms_break_ka":
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              • "type":"number",
              • "title":"Equipment Rating RMS Break (kA)",
              • "description":"Equipment RMS break rating in kA."
              }
              ,
            • "calculated_above_95_of_rating":
              {
              • "type":"string",
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              • "description":"Whether the calculated make or break currents are above 95% of equipment rating shown as TRUE or FALSE."
              }
            }
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}

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