Press N Forge is manufacturing a wide range of supreme quality relays accessories. These are used to safeguard oil-filled transformers and reactors with conservators from internal problems and low oil levels. Any failure that occurs inside the on-loadtap changer chamber is reported via OSR. These are activated by gas and are employed as a protection mechanism sensitive to the consequences of equipment dielectric breakdown. Relays accessories safeguard a transformer from various faults that may occur within the transformer, including short circuits, inter-turn faults, core faults, incipient faults, etc. These failures are detected by the relay, which then cuts the alarm circuit.