Detail |
22,900V high-voltage electricity is supplied from KEPCO and converted to 380V through its own transformer. |
380V low-voltage electricity supplied directly from KEPCO |
Construction cost |
Initial facility construction costs are relatively low (KEPCO facility charge is about 1/7 of the low voltage rate) |
Initial facility construction costs are relatively high (KEPCO facility charges are 7 times more than high-voltage charges) |
Electrical safety management |
Since high-voltage electricity is supplied, there is an obligation to appoint an electrical safety manager. |
Since low-voltage electricity is supplied, there is no obligation to appoint an electrical safety manager. |
Safety |
High risk of electric shock (danger when approaching the transformer) |
Low risk of electric shock |
Power outage risk |
Power outages may occur due to aging of the own high-voltage transformer. (Problems related to factory operation and product production) |
High power supply stability due to direct supply from KEPCO |
Maintenance cost |
Replacement costs and regular inspection costs due to aging of transformers, etc. |
No maintenance costs as KEPCO transformers are used rather than own transformers. |
Additional expansion |
Expansion possible through additional transformer purchase and line construction |
Only a maximum of 500kW is possible per business site, and additional expansion may be difficult. |
Power factor management |
If power is not used efficiently, a penalty fee is charged based on the percentage of loss. |
No power factor charges due to direct supply from KEPCO |