Pillar Type All Fiber Optic Current Transformer with Fittings

Abstract

The invention relates to a pillar-type all-fiber current transformer with fittings, including fittings, a primary side sensitive unit and a high-voltage electrode introduction device. The fittings include a fittings shell, a fittings gland and an insulating spacer. The upper end of the fittings casing is One side is transparent to accommodate the annular space of the sensitive optical fiber ring. The lower end of the fitting housing is the same side as the transparent side of the annular space for the optical fiber accommodation space. The fiber optic accommodation space is fixedly equipped with a splice box and an optical fiber winding Column, the fitting gland is installed on the transparent side of the fitting shell and after installation, the annular structure of the fitting fitting covers the annular space of the fitting casing and the lower end of the fitting fitting covers the optical fiber accommodation space, and the insulating spacer is installed on the fitting Between the gland and the inner ring of the fitting casing, the high-voltage electrode introduction device passes through the hollow structure inside the fitting casing and the inner ring of the fitting gland. The invention is convenient for installation and maintenance, has a beautiful appearance and high safety, and can ensure the safe and stable operation of the power grid.

Description

technical field [0001] The invention relates to the technical field of current transformers, in particular to a pillar type all-optical fiber current transformer with fittings. Background technique [0002] The current sensor / transformer is an important device for relay protection and electric energy measurement in the power system. It is used to measure the current in transmission and send the measured current to the measuring instrument and relay protection device for measurement and protection. The device provides a current signal. The long-term stability, reliability and safety of current transformers are closely related to the safe and stable operation of power systems. With the development of power systems towards large capacity, ultra-high voltage and ultra-high voltage, the requirements for miniaturization, intelligence and high reliability of power equipment are getting higher and higher. Due to the increase of the system voltage, the traditional electromagnetic c...

AI Technical Summary

Problems solved by technology

[0004] The present invention aims at problems such as complex fittings structure, bulky size, unsightly appearance, low versatility and potential safety hazards in the traditional pillar-type all-optical current transformer, and provides a pillar-type all-optical current transformer with fittings. Under the premise of placing N primary-side sensitive units inside the fitting (the number of N is usually determined according to the application site), it can effectively solve the structural safety problems of the pillar-type all-fiber-optic current transformer, and can effectively reduce the volume and weight. Small and light, greatly reducing cost, and has the advantages of low processing difficulty, convenient installation and maintenance, beautiful appearance, flexible application and high safety

Images