Features :-
The Relay Testing Equipment is a portable apparatus which is designed for checking the operating characteristic of protective relays on site. Ever present in every day operation of electrical power system is the possibility of the occurance of faults . Since a relay in the system is called into action to deal with a fault only once in a long while, its failure to operate correctly on that occasion means Severe damage to plant or waste of money spent on installation. Periodic Field testing is the best way of ensuring the integrity of the protective relays. But the position is complicated because of the fact that the protective relay is solely concerned with fault conditions and hence it cannot readily be tested under normal operating conditions. The relay testing equipments are secondary injection testing sets which simulate the common fault conditions under which a protective relay will be called into positive function. These testing sets can be used for testing almost every kind of protective systems from simple over current relays to more complicated distance relays. But not all power supply authorities need such a wide range. Hence Lomas offers relay testing equipments of various types such as RKY-1, RKY-2 and RKY-3 with specific testing capacity to suit any particular group of protective relays. 
Application :- 
Field testing of Electrical [AC] relays which 

Features :-
The Relay Testing Equipment is a portable apparatus which is designed for checking the operating characteristic of protective relays on site. Ever present in every day operation of electrical power system is the possibility of the occurance of faults . Since a relay in the system is called into action to deal with a fault only once in a long while, its failure to operate correctly on that occasion means Severe damage to plant or waste of money spent on installation. Periodic Field testing is the best way of ensuring the integrity of the protective relays. But the position is complicated because of the fact that the protective relay is solely concerned with fault conditions and hence it cannot readily be tested under normal operating conditions. The relay testing equipments are secondary injection testing sets which simulate the common fault conditions under which a protective relay will be called into positive function. These testing sets can be used for testing almost every kind of protective systems from simple over current relays to more complicated distance relays. But not all power supply authorities need such a wide range. Hence Lomas offers relay testing equipments of various types such as RKY-1, RKY-2 and RKY-3 with specific testing capacity to suit any particular group of protective relays. 
Application :- 
Field testing of Electrical [AC] relays which