РГЧЗ-66 (RGChZ-66) — transformer gas protection relay (Buchholz relay)
How to replace РГЧЗ-66: European-made Buchholz gas relays, selected instead of РГЧЗ-66 by purpose and connection dimensions.
Analogue selection is for reference only, by purpose and connection dimensions. Before replacement, check the specifications and wiring diagram against the product passport.
Purpose
Installed in the oil pipe between the tank of an oil-filled transformer (reactor) and the conservator. The alarm element operates when gas accumulates (slow decomposition of insulation or oil); the trip element operates on violent gas formation, a sharp oil surge towards the conservator or loss of oil. Used in transformer gas protection schemes.
Known data
| Type | Transformer gas protection relay (Buchholz relay) |
|---|---|
| Designation | РГЧЗ-66 |
| Parameter | gas relay with cup-type elements, produced for power transformers; replaced by modern double-float relays |
European analogues of РГЧЗ-66
Analogue selection is for reference only, by purpose and connection dimensions. Before replacement, check the specifications and wiring diagram against the product passport.
Find an analogue for РГЧЗ-66
Analogue of РГЧЗ-66. We reply within one business day.
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Oil-filled equipment on ukrsk.com.ua (Ukrainian pages): Setavolt iSA — industrial three-phase induction variable transformers · IVR / IVRI — three-phase oil-filled induction voltage stabilizer