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ABB NAMC-11 with factory sealed box
A built-in earth-fault directional element is available for applications to power networks with isolated
or with arc suppressing coil compensated neutral point.
For earth-fault direction detection it is mainly the question to evaluate the power flow direction in
zero sequence system. Both the residual voltage and neutral (residual) current on the protected
line are evaluated to ensure a correct direction decision.
Our Advantage
Xiamen ZheXun Electric Automation Co., Ltd one of the biggest distributor of automation control system module and spare parts in China.
We engaged in PLC, DCS, vibration monitoring system, steam turbine control system, gas generators etc.
We promise factory original,high quality & low price & large inventory.
We will offer the technical support by experienced staff, which have undergone rigorous testing and certification!
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