According to the Ban Na – Saphaothong contract, after completed construction the contractor should be guarantee one year for materials in the substation.
EDL inform you that, the some parts of functional on Saphaothong substation fail following below.
Parte of 22 KV the LA phase C, it breakdown. Please change to new install.
Parte of 22 KV the function CB trip on time reset then CB reclose automatic please check.