5SHX2645L0002 自动程控电流源技术

概述

必备细节:5SHX2645L0002 ABB晶闸管IGCT板卡

GcT是一种将栅极换向晶体管和集成栅极驱动电路相结合的器件，具有C70的高阻断能力和低导通电压降。同时具有与GBT相同的开关性能，是一种理想的兆瓦级、中压开关器件，广泛应用于大功率中压变流器中。其基本工作原理如下:

IGCT板5SHX2645L0002当IGCT工作在导通状态时，它是一个像晶闸管一样的正反馈开关，具有载流能力强和导通状态降压的特点。在关断状态下，GCT栅极和阴极之间的pn结提前进入反向偏置。并有效地完成工作，使整个器件工作在晶体管模式下。器件在这两种状态下的等效电路显示，当GCT为:通过与阴极(通常是MOSFET)串联打开开关，P基极n发射极反转。这可以迅速防止阴极注入，迫使整个阳极电流变成一个电流(通常在us中)，从而将gto转换成一个接触基极PNP晶体管。消除阴极放电收缩效应

一高质量的性能和可靠性一易于安装和维护适用于工业环境

功能特点:

1、采用高速16位A/D转换器，测量数据稳定，重复性好:

2、自动程控电流源技术，电流源共设1000个电流档位，由内部微控制器根据被测电阻自动控制，从而达到比较宽的测量范围。3、高度智能化设计，功能设置巧妙先进，可自动判断测试线虎接、断线等故障

4、保护功能完善，能可靠保护反电势对仪器的冲击，具有自动放电指示功能;

5、可显示测量电流和测量时间:

6、智能化功率管理技术，可有效减轻仪器内部发热

7、可储存120次测量数据，掉电不丢失;

8、全部汉字菜单及操作提示，直观方便。

summarize

Necessary details :5SHX2645L0002 ABB thyristor IGCT board

The GcT is a device that combines a gate commutator transistor and an integrated gate drive circuit with the high blocking capability and low on-voltage drop of the C70. At the same time, it has the same switching performance as GBT, and it is an ideal MW-level, medium-voltage switching device, which is widely used in high-power medium-voltage converters. The basic working principle is as follows:

IGCT board 5SHX2645L0002 When the IGCT is working in the on-state, it is a positive feedback switch like a thyristor, with strong current carrying capacity and the characteristics of on-state voltage reduction. In the off state, the pn junction between the GCT gate and cathode enters reverse bias in advance. And effectively complete the work, so that the whole device works in the transistor mode. The equivalent circuit of the device in these two states is shown when the GCT is: by opening the switch in series with the cathode (usually the MOSFET), the p-base n emitter is reversed. This quickly prevents cathode injection, forcing the entire anode current into one current (typically in the us), thereby converting the gto into a contact base PNP transistor. Eliminate the contraction effect of cathode discharge

High quality performance and reliability - easy installation and maintenance for industrial environments

Functional features:

1, high-speed 16-bit A/D converter, stable measurement data, good repeatability:

2, automatic program control current source technology, the current source a total of 1000 current gear, automatic control by the internal microcontroller according to the measured resistance, so as to achieve a relatively wide measurement range. 3, highly intelligent design, clever and advanced function Settings, can automatically judge the test line tiger connection, broken line and other faults

4, the protection function is perfect, can reliably protect the impact of the back potential on the instrument, with automatic discharge indicator function;

5, can display the measurement current and measurement time:

6, intelligent power management technology, can effectively reduce the internal heat of the instrument

7, can store 120 measurement data, power loss is not lost;

8, all Chinese menu and operation prompts, intuitive and convenient.