ES2128253A1 - Process for decontaminating electrical transformers with PYRALENE (PCB), with substitution by a dielectric oil - Google Patents
Process for decontaminating electrical transformers with PYRALENE (PCB), with substitution by a dielectric oilInfo
- Publication number
- ES2128253A1 ES2128253A1 ES09700620A ES9700620A ES2128253A1 ES 2128253 A1 ES2128253 A1 ES 2128253A1 ES 09700620 A ES09700620 A ES 09700620A ES 9700620 A ES9700620 A ES 9700620A ES 2128253 A1 ES2128253 A1 ES 2128253A1
- Authority
- ES
- Spain
- Prior art keywords
- transformer
- pcb
- oil
- containers
- dielectric
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
Process for decontaminating electrical transformers with PYRALENE (PCB), with substitution by a dielectric oil. Under conditions of complete isolation with respect to the environment surrounding the process, the PCB is extracted from the transformer 1 into one or more containers 2 until the transformer is completely empty. Next, a phase of washing is carried out using a solvent, such as trichloroethylene, originating from a tank 4, in order to eliminate most of the PCB which impregnates the inner walls of the transformer 1, the resulting product being also sent to the containers 2, then the gases generated by the solvent are removed which, duly monitored, pass out to the atmosphere. Next, a further washing of the transformer 1 is carried out, in this case with dielectric oil supplied from the containers 3, this washing being repeated several times, in closed circuit, the oil being made to pass through treatment equipment 6 in which the oil is dialysed or filtered continuously until it reaches the parameters pre-established in this respect, finally remaining within the transformer 1 as dielectric and means for refrigeration thereof.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES9700620A ES2128253B1 (en) | 1997-03-21 | 1997-03-21 | DECONTAMINATION PROCEDURE OF ELECTRIC TRANSFORMERS WITH PYRALENE (PCB), WITH SUBSTITUTION BY A DIELECTRIC OIL. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES9700620A ES2128253B1 (en) | 1997-03-21 | 1997-03-21 | DECONTAMINATION PROCEDURE OF ELECTRIC TRANSFORMERS WITH PYRALENE (PCB), WITH SUBSTITUTION BY A DIELECTRIC OIL. |
Publications (2)
Publication Number | Publication Date |
---|---|
ES2128253A1 true ES2128253A1 (en) | 1999-05-01 |
ES2128253B1 ES2128253B1 (en) | 1999-11-16 |
Family
ID=8298707
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES9700620A Expired - Lifetime ES2128253B1 (en) | 1997-03-21 | 1997-03-21 | DECONTAMINATION PROCEDURE OF ELECTRIC TRANSFORMERS WITH PYRALENE (PCB), WITH SUBSTITUTION BY A DIELECTRIC OIL. |
Country Status (1)
Country | Link |
---|---|
ES (1) | ES2128253B1 (en) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4425949A (en) * | 1981-02-03 | 1984-01-17 | Diamond Shamrock Corporation | Process for removing undesirable substances from electrical devices |
ES8705149A1 (en) * | 1984-11-27 | 1987-04-16 | Union Carbide Corp | Method for replacing PCB-containing coolant in electrical induction apparatus with substantially PCB-free dielectric coolants. |
US4685972A (en) * | 1984-07-18 | 1987-08-11 | Quadrex Hps, Inc. | Process for removing PCB's from electrical apparatus |
ES2009149A6 (en) * | 1987-05-27 | 1989-09-01 | Pioch Rene | Method for decontaminating transformers with pcb. |
-
1997
- 1997-03-21 ES ES9700620A patent/ES2128253B1/en not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4425949A (en) * | 1981-02-03 | 1984-01-17 | Diamond Shamrock Corporation | Process for removing undesirable substances from electrical devices |
US4685972A (en) * | 1984-07-18 | 1987-08-11 | Quadrex Hps, Inc. | Process for removing PCB's from electrical apparatus |
ES8705149A1 (en) * | 1984-11-27 | 1987-04-16 | Union Carbide Corp | Method for replacing PCB-containing coolant in electrical induction apparatus with substantially PCB-free dielectric coolants. |
ES2009149A6 (en) * | 1987-05-27 | 1989-09-01 | Pioch Rene | Method for decontaminating transformers with pcb. |
Also Published As
Publication number | Publication date |
---|---|
ES2128253B1 (en) | 1999-11-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EC2A | Search report published |
Date of ref document: 19990501 Kind code of ref document: A1 Effective date: 19990501 |