Why does an RCD knock out when the TV is turned on?

Is there any difference where before (RCD or LV) voltage is applied? At my cottage, 3 phases through automatic machines go to a 3-phase RCD. Further, each phase on the RN-104 and through the machines to consumers. Earth is, zero separately. Added a non-disconnectable (conditionally) line for a refrigerator with a 1-phase RCD and RN-113. I arrive, the refrigerator is working. I turn on the main three lines and then the light, TV antenna, TV receiver and TV itself (old PANASONIC). After turning on the TV, both RCDs are triggered. Rechecked the circuit, did not find jambs. I can’t understand what’s the matter. Help me please!