Inject Fault after Latching ( ) Service Values for Measurements PH voltage PH current applied: A. Phase shift : degree. Frequency : HZ. CT ratio : A. VT ratio : KV Prim. Values Values Sec. Values (KV) Values Sec. Values Prim. Values (KV) U1 I1 U2 I2 U3 I3 U4 - I4 U1 U2 - P - – U2 U3 - Q - – U3 U1 - F - – Fault Locator Function Line Length: Line impedance PH-E: Ω Line impedance PH-PH: . Ω Expected display Actual display Fault Type Fault Impedance (Ω) (Km) (Km) A-N(25)% B-N(50)% C-N(100)% A-B(25)% B-C(50)% C-A(75)% A-B-C(100)%
Inject Fault after Latching ( ) Service Values for Measurements PH voltage PH current applied: A. Phase shift : degree. Frequency : HZ. CT ratio : A. VT ratio : KV Values Sec. Values (KV) Prim. Values (KV) Values Sec. Values Prim. Values U1 I1 U2 I2 U3 I3 U4 - I4 U1 – U2 - P - U2 – U3 - Q - U3 – U1 - F - Fault Locator Function Line Length: Line impedance PH-E: Ω Line impedance PH-PH: Ω . Fault Type Fault Impedance (Ω) Expected display (Km) Actual display (Km) A-N(25)% B-N(50)% C-N(100)% A-B(25)% B-C(50)% C-A(75)% A-B-C(100)%
rel670_-_line_distance.docx