Power transformers
ISO 14224
Equipment — Electrical
ID: equip_PT
| URI: https://www.iso.org/standard/64076.html
No definition available.
Properties / Attributes (16)
| Name | Data Type | Unit / Valid values | Required | Definition |
|---|---|---|---|---|
| Frequency | — |
Hertz | Optional | Rated frequency |
| Primary voltage | — |
Kilovolts | Required | Rated voltage |
| Secondary voltage | — |
Kilovolts | Required | Rated voltage |
| Voltage additional | — |
Kilovolts | Required | Rated voltage tertiary or further windings |
| Power – design | — |
Kilovolt·amperes | Required | Rated power η |
| Power factor | — |
Number | Optional | Cos |
| Efficiency | — |
Number = 1 | Optional | Efficiency factor ( ) |
| Degree of protection | — |
Code as in IEC 60529:2001, Clause 4 | Optional | Protection class in accordance with IEC 60529 |
| Thermal class designation | — |
Y, A, E, B, F, H, 200, 220, 250 | Optional | Thermal class in accordance with IEC 60085 |
| Temperature rise | — |
Degrees Celsius | Optional | In accordance with IEC 60076-2 |
| Transformer cooling | — |
Code as in IEC 60076-2:1993, Clause 3 | Required | Type in accordance with IEC 60076-2 |
| Number of phases | — |
Number | Required | 1-phase or 3-phase |
| Level of insulation | — |
Kilovolts | Required | Insulation in accordance with IEC 60076-3 |
| Three-phase transformer connection | — |
Code as recommended in IEC 60076- | Required | Type and combination of connections (vector |
| Type of dry trans- | — |
Encapsulated/not encapsulated | Optional | IEC 60076-1 |
| Failure modes | 10 failure modes — click to expand
AIR
Abnormal instrument reading
ELU
External leakage - utility medium
FOV
Faulty output voltage
FTC
Failure to close on demand
FTF
Failure to function on demand
INL
Internal leakage
OHE
Overheating
OTH
Other
STD
Structural deficiency
UNK
Unknown
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