Babu Hirapara
Member
For Ice rink under construction, I have 1600 AMP 480/277V, 3ph, 4 wire service main with Ground-Fault protection according to NEC 230.95.
Last month utility company connect the power to main.
The Ice rink building under construction and so many contractor working and
using so many tools and machinary for construction.
Only about 30% load is connected to 1600 Amp service main.
Within one month, this service main breaker tripped two times and lost the complete construction power. (All other breakers on load side distribution and low voltage panelboards do not trip).
Can you please tell why service main trips? Is there any solution for this?
Last month utility company connect the power to main.
The Ice rink building under construction and so many contractor working and
using so many tools and machinary for construction.
Only about 30% load is connected to 1600 Amp service main.
Within one month, this service main breaker tripped two times and lost the complete construction power. (All other breakers on load side distribution and low voltage panelboards do not trip).
Can you please tell why service main trips? Is there any solution for this?