Transformer short-time thermal load capability

[듀스]

Transfomer Categories for purposes of coordination overcurrent portective devices
IEEE C37.91-1985 , IEEE Guide for Protective Relay Applications to Power Transformers.

Table 2- Transforemr short-time thermal load capability

Time Times rated current
2s 25.0
10s 11.3
30s 6.3
60s 4.75
5min 3.0
30min 2.0