江蘇春晨電纜有限公司生產春晨JFEYH10KV高壓電機引接線JFEYH10KV高壓電機引出線，

電氣二次回路交流耐壓試驗規定

Regulation of electric two circuit AC voltage test

電氣二次回路交流耐壓試驗，應符合下列規定：1、試驗電壓應為1000V。當回路絕緣電阻值在10MΩ以上時，可采用2500V兆歐表代替，試驗持續時間應為1min，尚應符合產品技術文件規定；2、48V及以下電壓等級回路可不做交流 ...

The electric two circuit AC voltage resistance test should comply with the following regulations: 1, the test voltage should be 1000V. When the insulation resistance of the circuit is above 10M ohm, the 2500V Mega meter can be used instead of the test. The test duration should be 1min, which is still in line with the product technical documents. 2, 48V and the following voltage level circuit can not be exchanged.

2017-10-25 07:36

2017-10-25 07:36

電氣二次回路測量絕緣電阻規定春晨JFEYH10KV高壓電機引接線JFEYH10KV高壓電機引出線

Electrical two circuit measurement of insulation resistance regulation

測量絕緣電阻，應符合下列規定：1、應按GB 50150-2016標準第3.0.9，條的規定，根據電壓等級選擇兆歐表；2、小母線在斷開所有其他并聯支路時，不應小于10MΩ；3、二次回路的每一支路和斷路器、隔離開關的操動機構的電 ...

Measuring insulation resistance shall comply with the following provisions: 1, according to GB 50150-2016 standard 3.0.9, shall, according to the voltage level selection of megohmmeter; 2, the small bus disconnect all other parallel branches, should not be less than 10M; 3, the two loop of each branch circuit breaker, isolating and switch electric actuator...

2017-10-25 07:35

2017-10-25 07:35

低壓成套電氣開關設備中的導線顏色標識春晨JFEYH10KV高壓電機引接線JFEYH10KV高壓電機引出線

Color identification of wire in low voltage electrical switchgear

在低壓成套開關設備內部的線纜一般采用黑色作為基本顏色，線頭和線尾可加顏色套環進行區別。顏色色系的標定含義見表1低壓成套開關設備內部依導線顏色標志電路時的線纜顏色標定含義 序號 導線顏色 意義 1 黑色 裝置和 ...

In the low voltage switchgear, the cable usually uses black as the basic color, and the line head and the tail can be different with the color ring. The calibration meaning of the color system is shown in Table 1, the color of the cable in the low voltage switchgear, which is based on the conductor's color mark circuit, the meaning of the serial number, the color of the conductor, the black device and the 1.

2017-10-25 07:34

2017-10-25 07:34

電氣二次控制線束脫落惹的禍

The two times the electric control of the wire harness

電氣二次控制線束脫落惹的禍2017年10月，某220kV變電站線路斷路器A相偷跳，重合閘動作重合A相成功后再次偷跳，約8秒后線路主一保護電氣量三相不一致保護動作跳開221斷路器B、C相。 針對這起保護誤動作事件，檢查發現：由于機構箱未設置線槽盒， ...

Two electric control harness off disaster in October 2017, a 220kV substation circuit breaker A phase tripping reclosing, coincidence A phase after the success of stealing again jump, about 8 seconds after the line main protection electrical three-phase inconsistent protection circuit breaker tripping action 221 B, C. In view of the misoperation of this protection, it is found that, since the box box is not set,...

2017-10-24 21:45

2017-10-24 21:45

電氣設備狀態監測與故障診斷技術應用

Application of state monitoring and fault diagnosis technology for electrical equipment

電氣設備狀態監測與故障診斷技術主要有三個環節：首先，狀態監測。電氣設備在正常運行中，通過對特征型號進行監測，變換與記錄，并對相關問題進行分析與處理，并將分析結果進行詳細的記錄，為設備故障診斷提供確 ...

There are three main links in the state monitoring and fault diagnosis of electrical equipment: first, state monitoring. In normal operation, electrical equipment can monitor, transform and record the characteristic models, analyze and process the related problems, and record the analysis results in detail, so as to provide accurate diagnosis for the equipment fault.

2017-10-24 10:51

2017-10-24 10:51

發電機三相電源繞組的三角形連接和三相四線制星形接法

Triangular connection and three phase four wire star connection method for three-phase power supply winding of generator

發電機三相電源繞組的三角形連接和三相四線制星形接法將三相電源繞組的末端U1、V1、W1連接在一起，成為一個公共點，叫做發電機的中性點或零點，從中性點接出的導線N稱為中線或零線。中線通常與大地相接，又稱地線。從三個繞組的始端分別引出三根導線U、V、W，稱為端線或 ...

Generator three-phase power supply windings of delta connection and three-phase four wire Wye connected three-phase power winding end of the U1, V1 and W1 together, become a common point, called the neutral point generator or zero wire N connection from the neutral point is called the zero line or line. The middle line is usually connected with the earth, also known as the ground line. Out of three wires U, V, W from the beginning of the three windings are called line or...

2017-10-23 16:09

2017-10-23 16:09