4.14 Voltage and synchronism check elements test
(1) Voltage check element
Element
Setting
OVB
UVB
OVL1
(2) Synchronism check element
Voltage check
Element
Setting
SYN1(SY1UV)
SYN1(SY1OV)
Phase angle check
Element
SYN1(SY1θ)
SYN2(SY2θ)
5.
Protection scheme test
6.
Metering and recording check
7.
Conjunctive test
Item
On load check
Tripping circuit
Reclosing circuit
Measured voltage
Element
UVL1
OVL2
UVL2
Measured voltage
Element
SYN2(SY2UV)
SYN2(SY2OV)
Setting
Measured angle
Results
386
6 F 2 S 0 8 5 0
Setting
Measured voltage
Setting
Measured voltage