CN2718746Y

CN2718746Y - Transfermer loaded tap changer oil filter

Info

Publication number: CN2718746Y
Application number: CN 200320115015
Authority: CN
Inventors: 邓子盛
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-11-19
Filing date: 2003-11-19
Publication date: 2005-08-17
Anticipated expiration: 2013-11-19

Abstract

The utility model relates to the oil filter of the loaded tapping switch oil of a transformer, comprising an oil sucking pipe, an oil returning pipe, a filtering pot, a pressure meter, an oil pump and an electric motor. The key point is a drying pot which is respectively connected with the oil pump and the filtering pot. Stop valves are respectively arranged between the oil sucking pipe and an oil entering flange, and between an oil returning flange and a loaded tapping switch. Exhaust valves are arranged on the filtering pot and the drying pot. The oil filter of the loaded tapping switch oil of a transformer can automatically proceed with the definite-time filtering in every 24 hours under the precondition of not stopping the working of the transformer. Consequently, the problems of the oil pollution and the water accumulation of the loaded tapping switch can be solved to avoid various influences brought by the stop of the oil filter of the loaded tapping switch oil of a transformer. The switch oil is dried and filtered by the oil filter of the loaded tapping switch oil of a transformer, and the mechanical life of shifting the switch is obviously raised. The insulation material keeps the dielectric strength under the high-field intensity, and the frequency of the maintenance and the oil change of the loaded tapping switch of the transformer is reduced.

Description

On-load tap changers of transformers oil oil filter

Technical field

The utility model relates to a kind of on-load tap changers of transformers oil oil filter.

Background technology

As everyone knows, on-load tap changers of transformers is the critical component of transformer, on-load tap changers of transformers is in the pressure regulation process, service conditions is poor, switching manipulation often, all the time at full capacity and frequent overload etc., circuit-breaker oil will be polluted by electric arc rapidly, if on load tap changer works in temperature in the area of humidity extra-high-speed and the oil conservator below the dew point of every day, the accumulation of moisture all can cause the alienation of shunting switch insulation characterisitic in the carbon granules that deposits on the rising of water content and the insulating material in the circuit-breaker oil, has influence on the reliability service of on load tap changer.Head it off has two kinds of methods at present: the one, change transformer oil through behind the certain hour, and shortcoming is need be out of service, and waste is serious; The 2nd, through after the certain hour operation, out of service, external then filter plant filters, and the shortcoming of the method is that complicated operation and labour intensity are big, causes the certain economic loss because of out of service.

Summary of the invention

The purpose of this utility model is to provide a kind of and under transformer prerequisite not out of service on-load tap changers of transformers oil is carried out automatic fitration, and circuit-breaker oil is in the eligible state all the time, moves reliably and with long-term to guarantee on load tap changer.

The purpose of this utility model can reach by following technical measures, that is: this on-load tap changers of transformers oil oil filter, comprise suction, oil return pipe, filtering tank, Pressure gauge, oil pump and motor, its key be one respectively with oil pump and the joining drying chamber of filtering tank, between fuel sucking pipe and the oil-feed flange, between oil return flange and on load tap changer oil return pipe, break valve is housed respectively, on filtering tank and drying chamber, vent valve is housed.

According to the above-mentioned on-load tap changers of transformers oil oil filter that assembles, its course of work such as following: at first circuit-breaker oil is extracted out from on-load tap changers of transformers, the drying jar, with the moisture removal in the oil, filter the purpose of the purification and the dehydration that reach circuit-breaker oil again through the filtering tank high accuracy.Moisture of oil＜10PPm after the purification, dielectric strength＞40KV/2.5mm.

The utility model compared with prior art, under transformer situation not out of service, can finish the purified treatment of loaded tap switch oil, the various influences that bring out of service have been avoided, and circuit-breaker oil has improved the mechanical endurance of diverter switch significantly through this machine drying, filtration, significantly reduce on-load tap changers of transformers maintenance number of times, must not change insulating oil.

Description of drawings

Fig. 1 is an overall construction drawing of the present utility model.

Fig. 2 is that Figure 1A is to view.

Embodiment

Hereinafter with reference to accompanying drawing specific embodiment of the utility model is further described:

Referring to Fig. 1, Fig. 2, the utility model on-load tap changers of transformers oil oil filter, comprise suction, oil return pipe 1,9, filtering tank 6, Pressure gauge 10, oil pump 3 and motor 4, its key be one respectively with oil pump 3 and filtering tank 6 joining drying chambers 5, between fuel sucking pipe 1 and the oil-feed flange 12, between oil return flange 11 and on load tap changer oil return pipe break valve 2,8 being housed respectively, on filtering tank 6 and drying chamber 5, vent valve 13 is housed.

Described drying chamber 5 is tubular, and the end and top cover are arranged, interior dress high accuracy filter core and drier.

Described fuel sucking pipe 1 stretches out from bottom, loaded tap switch oil chamber and is connected with oil filter by flange.

Described oil return pipe 9 stretches out from top, loaded tap switch oil chamber and is connected with oil filter by flange.

Described electric cabinet 7 is contained on the oil filter frame.This electric cabinet has automatic controlled function.

Described filtering tank 6 is tubular, and the end and top cover are arranged, interior dress stainless steel filter core.

Described Pressure gauge 10 is contained in the machine.

Claims

1, a kind of on-load tap changers of transformers oil oil filter, comprise suction, oil return pipe (1,9), filtering tank (6), Pressure gauge (10), oil pump (3) and motor (4) is characterized in that: one respectively with oil pump (3) and the joining drying chamber of filtering tank (6) (5), break valve (2,8) is housed respectively between fuel sucking pipe (1) and oil-feed flange (12), between oil return flange (11) and on load tap changer oil return pipe, on filtering tank (6) and drying chamber (5), vent valve (13) is housed.

2, on-load tap changers of transformers oil oil filter according to claim 1, it is characterized in that: drying chamber (5) is tubular, and the end and top cover are arranged, interior dress high accuracy filter core and drier.

3, on-load tap changers of transformers oil oil filter according to claim 1 is characterized in that: fuel sucking pipe (1) stretches out from bottom, loaded tap switch oil chamber and is connected with oil filter by flange.

4, on-load tap changers of transformers oil oil filter according to claim 1, it is characterized in that: oil return pipe (9) stretches out from top, loaded tap switch oil chamber and is connected with oil filter by flange.