.
Likhoutu tsa alamo tsa SPM 19, 20.
The offset voltage ea U phase (alarm code 19) le V phase (alarm code 20) ea hajoale ea ho lemoha potoloho e kholo haholo. Lemoha ha o buletsoe.
Ha alamo e hlaha, ka kopo tlosa SPM.Ha boto ea potoloho e hatisitsoeng ea taolo ea SPM e sa tsoa nkeloa sebaka, ka kopo netefatsa ho kenngoa ha sehokelo pakeng tsa yuniti ea matla le boto ea potoloho e hatisitsoeng ea taolo ea SPM.
Tsepamisa maikutlo ho faneng ka tharollo ea mong pu bakeng sa lilemo tse 5.