At present versatile devices for relay protection and control as a substitution for simple protection VL 6-110 by “NPP Bresler”, LLC (Cheboksary) undergo trial performance in the production departments of Tula and Novomoskovsky Electrical Network of “Tulenergo”, the branch of “Interregional Distribution Grid Company of Center and Volga Region”, JSC.

This device is designed to substitute relay protection devices during repair works. The benefits of its use include its mobility, flexibility, conformance with any operation current; it helps to substitute any simple relay protection at various substations at any time. Now, instead of multiple relay protection terminals, such flexible device is sufficient to have in the emergency reserve to improve reliability of relay protection and control devices. It is worth mentioning, that the developer of this device, “NPP Bresler”, LLC in its finished product considered all the technical requirements to the versatile relay protection and control device, formulated by electrical engineers of Tula. REFERENCE. The joint-stock company “Interregional Distribution Grid Company of Centre and Volga Region” (JSC “MRSK of Centre and Volga Region”) is a subsidiary of the largest Russian electrical power company “MRSK Holding”, JSC, the government share in the capital assets of which makes 53.69%. JSC “MRSK of Centre and Volga Region” is the principal supplier of electrical power and electrical network utility connection in Vladimir, Ivanovo, Kaluga, Kirov, Nizhny Novgorod, Ryazan, Tula regions, in the Mary-El and the Udmurtian Republic. In the operation facilities of JSC “MRSK of Centre and Volga Region” are 1548 substation of 35-220 kV voltage, 263391 km of electric power lines; 59621 transformer substations and distribution substation of 6-10 kV. The personnel of the electrical power company include over 22 ths. people. The main objectives of all the distribution network companies of “MRSK of Centre and Volga Region” are the provision of reliable and high-quality electrical power supply in the companies’ operation areas and free connection of consumers to electrical networks.