Protection relay transformer RGCS-66

Relay gas type RGCS-66 and RHCS-t designed to protect transformers and other oil-filled equipment with extenders, and respond to all internal damage, accompanied by release of gases. as well as lowering of the oil level. Relay RGCS-t is intended for use in tropical climates.
Technical data.

Relay can be installed to protect objects with diameter pipe oil line 3".
- The top element is triggered by the accumulation under the relay cover gas or air in the amount of not less than 400 cubic cm±20%.
The lower element (disable) can be configured to one of the following fixed the actuation setpoints corresponding to the rate of oil flow before entry into the relay pipe 3" 0.6 m/s; 0.9 m/s; at 1.2 m/s, which is achieved by setting the switch blades of the appropriate size. The range of variation in the speed of oil, when a relay at any point, relative to the average value of five measurements should not exceed ±15%.
- Operating time of the lower element when the oil velocity of 1.25 from setpoint not more than 0.2 sec.
The relay contacts meet the following requirements:
a) the duration of the first pulse of the closed state is not less than 0.05 sec.;
b) contacts the upper and lower elements in the absence of a relay gas or air (relay completely filled with oil) is not closed under vibration with a frequency of 75 Hz at double amplitude of 1.3 mm;
C) relay contacts withstand not less than 1000 actuations on opening and closing the circuit of AC or DC to 0.2 And at a voltage of 220-240 volts;
g) open the contacts of each element and the insulation of live parts relay from the body withstand the test voltage of 2000 volts (for relay for tropical version of 2200 volts) alternating current frequency of 50 Hz for one minute.