捷克斯洛伐克生产了一种农村用新系列400伏配电板。它与功率100—630千伏安的变电站配套使用。用它测量有效电能,无效电能,电压、电流值,cosφ值,并根据电网用户高频信号在特定时间里会自动联结到蓄能电热装置上,联接五条输出馈电缆和备用电源馈线。该配电板由三只仪表和配电板组成一个标准 Czechoslovakia produced a new series of 400-V panels for rural use. It is used with substations of 100-630 kVA. Use it to measure the effective electric energy, the invalid electric energy, the voltage, the electric current value, the cosφ value, and according to the power grid user high frequency signal will automatically link to the accumulator electric heating device in the special time, joins five output feeder cables and spare power supply feeder. The panel consists of three instruments and panels form a standard