Pursuant to Article 116 of the Energy Law

4.2.11.2.11. Backup protection functions shall be applied locally in the physically 
independent protection device.
4.2.11.2.12. Transmission system user shall be responsible for installation of additional 
protection equipment in its facility aimed at facility protection in case of technological 
process in the case of transmission grid disturbance. Equipment should not be activated by 
the transient processes. 
4.2.11.3. Selection of the type of protection for connection to 220 kV and 400 kV levels of 
transmission grid 
4.2.11.3.1. In a case of connection/ interconnection of user’s facilities to 220 kV and 400 kV 
transmission systems JSC EMS shall define technical requirements related to protection in 
accordance with the specifics of each individual request for connection.
4.2.11.4. Protection settings 
4.2.11.4.1. Transmission system users are required to request the JSC EMS protection 
settings plan for EPS elements in their facilities that meet the criteria of the first, second and 
third group of categorization of at least 20 days before the facility (or part of the facility) 
commissioning. JSC EMS submits this plan to the transmission system user within 10 days 
from receiving a request from the user. 
4.2.11.4.2. Transmission system users are required to submit for approval a protection 
settings plan for EPS elements to the JSC EMS in their facility that meet the criteria of the 
fourth group of categorization, which are directly galvanically connected to the elements that 
meet the criteria of the first, second or third group categorization at least 15 days before the 
facility (or part of the facility) commissioning. JSC EMS within 7 days from receiving the 
plan of protection setting issues consent to the transmission system user, or defines to the user 
the changes in the settings plan in order to achieve selectivity and time required trips for all 
types faults. 
4.2.11.4.3. Setting plan of protection devices is made keeping in mind the fault of one 
element of the transmission system only (N - 1 criterion). 
4.2.11.4.4. Transmission system user is required to implement the parameters from the 
protection settings plan in their protection devices and to immediately inform JSC EMS.
4.2.11.4.5. JSC EMS coordinates protection systems with neighbouring transmission system 
operators with special reference to the determination of the type and protection settings of the 
interconnection (cross border) lines.