Operational direct Current Systems SOPT ZES for high-Voltage Substations 6-220 kV

The direct current operating system is an integral part of the system (DCOS) that provides power supply for the auxiliary needs of a power facility with direct and alternating current. DCOS is a set of converting, accumulating and distributing devices of electric energy, designed to provide uninterruptible DC operating current power supply to relay protection and automation devices, high-voltage circuit breaker drives, secondary switching devices, communications, telemetry and automated process control systems. The products comply with the Technical Requirements and Recommendations of JSC FGC UES STO 56947007-29.120.40.041-2010, taking into account the amendments introduced on 14.12.2012. The composition of the DCOS equipment depends on the class of the power facility, the features of the DCOS, the principle of constructing relay protection and control automation systems.