Valve connector for hot-line oil sampling of current transformer

Abstract

The invention discloses a valve connector for hot-line oil sampling of a current transformer. The valve connector is used for solving a plurality of problems of hot-line oil sampling of the current transformer by a common tool. The technical scheme is as follows: the valve connector comprises a disk body; an outer valve neck and an inner valve neck are orderly arranged at the end face of one side of the disk body from outside to inside; the outer valve neck is a hexagonal slot; and the inner valve neck is a flat slot composed of two symmetric planes and two symmetric arc surfaces, and arc holding slots are evenly distributed on the outer circumference of the disk body. The valve connector can be used for replacing traditional large and small spanners; an operational tool is simplified and lighted, and convenient to operate and carry; and a conical nozzle is matched with a sealing gasket, so that the conical nozzle can be suitable for the sizes of nozzle joints of different current transformers, and sampling is more convenient. The valve connector is prepared from a high-strength insulating material; the influence of induced electricity on operating personnel can be avoided; sense of piercing pain of the operating personnel caused by the induced electricity is removed, and unsafe factors of an operation are also reduced.

Description

technical field [0001] The invention relates to a hand tool, in particular to a valve connector used for live oil sampling of a current transformer. Background technique [0002] Current transformers require periodic oil sampling for analysis. When the operating state of the current transformer is unstable, the frequency of collecting oil samples will increase accordingly. In order not to affect the normal operation of the power supply facilities, collecting oil samples must be carried out with electricity. The current transformer is provided with a sampling oil port, and the sampling oil port is provided with internal and external valves. At present, when taking oil samples with electricity, the operators need to wear safety belts and carry tool kits to climb ladders and climb high for operation. The operating tools used include large and small wrenches, anti-static wrist guards, and rubber hoses of different specifications. When sampling, first use a large wrench to open...

AI Technical Summary

Problems solved by technology

The problems of this traditional oil sampling operation are as follows: 1. Due to the influence of the surrounding facilities of the current transformer, the large and small wrenches have limited movable space and short movable distance, and the operation is time-consuming and laborious; 2. The operator needs to carry many 3. Different specifications of current transformers have different sizes of sampling ports and nipple joints. The hose should be selected according to the size of the nipple joint. Usually four specifications of hoses are required. After the hose is put on, oil will leak and it is easy to Slipping, you need to pinch the rubber hose with your hands, so that both hands of the sampling personnel are occupied, which is very inconvenient to operate; 4. When using a wrench to open and close the inner and outer valves, the sampling personnel will be affected by the induction electricity and cause stinging pain sense, there is a security risk

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