HVTest HT-802, Руководство пользователя

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The program can simulate transient, permanent and transitional fault for the reclosing
test of the circuit protection, after accelerated and whole drive test with switch.
1. [Parameters setting]
[Fault nature]: transient faults, permanent faults and conversion failure optional.
[PT installation]: bus side or line side. If bus side, when the switch is tripped, the voltage
loop revert to the normal state voltage, current 0A. If line-side, when the switch is tripped, the
voltage is 0V, the current 0A.
[Closing angle]: it is the initial phase of the A - phase when fault begins. UA phase as a
benchmark reference phase
[Load current]: the amplitude of the three-phase current at normal state, and generally
0.5A, can also be set to 0A.
[Load power angle]: the angle of each phase current and voltage at normal state.
Generally 30 degrees
[Normal state time]: generally takes 20s, to escape the reversionary and reclosing
charging time of the entire group.
[The fault state time]: more than the action time of the protection, generally takes 3- 4s.
[Time after tripping]: should be greater than the protection reclosing action time,
generally takes 1-2s
[Time after reclosing]: it is normal state after reclose, generally takes 2s.
2. [Fault 1]
The first fault, the fault impedance setting based on
distance protection. For less 110KV line protection, only
need over-current protection. Only set the short-circuit
current greater than the over-current setting value.
Impedance setting: enter impedance setting of a
certain segment, sensitive angle 75 degrees, the
short-circuit point to be the0.9 times of setting
impedance, to make the protection reliable action.