IGCT集成门极换流晶闸管(Intergrated Gate Commutated Thyristors)是一种中压变频器开发的用于巨型电力电子成套装置中的电力半导体开关器件(集成门极换流晶闸管=门极换流晶闸管+门极单元)。1997年由ABB公司提出。IGCT使变流装置在功率、可靠性、开关速度、效率、成本、重量和体积等方面都取得了巨大进展,给电力电子成套装置带来了新的飞跃。IGCT是将GTO芯片与反并联二极管和门极驱动电路集成在一起,再与其门极驱动器在外围以低电感方式连接,结合了晶体管的稳定关断能力和晶闸管低通态损耗的优点,在导通阶段发挥晶闸管的性能,关断阶段呈现晶体管的特性。IGCT 具有电流大、阻断电压高、开关频***、可靠性高、结构紧凑、低导通损耗等特点,而且造成本低,成品***,有很好的应用前景。己用于电力系统电网装置(100MVA)和的中功率工业驱动装置(5MW)IGCT在中压变频器领域内成功的应用了11年的时间(到09年为止),由于IGCT的高速开关能力无需缓冲电路,因而所需的功率元件数目更少,运行的可靠性大大增高。IGCT集 IGBT(绝缘门极双极性晶体管)的高速开关特性和GTO(门极关断品闸管)的高阻断电压和低导通损耗特性于一体,一般触发信号通过光纤传输到IGCT单元。在ACS6000的有缘整流单元的相模块里,每相模块由IGCT 和二极管、钳位电容组成,由独立的门极供电单元GUSP为其提供能源。
We currently stock over 12000+ branded products.
---Invensys Foxboro:
I/A Series system, FBM(input / output modules) Sequence control, ladder logic control, Recalling accident treatment, The digital-to-analog converter input/output signal processing, Data munication and processing, and etc.
---Invensys Triconex:
Redundancy fault tolerant control system, Based on the three module redundancy (TMR) structure of the most modern fault-tolerant controller.
---Westinghouse:
OVATIONN system, WDPF system, WESStation system card.
---Modicon:
Quantum 140 Series processor, control card, Power module and so on.
---Rockwell Allen-Bradley:
Reliance, SLC500/1747/1746, MicroLogix/ 1761/ 1763/ 1762/ 1766/ 1764, pactLogix/1769/1768,Logix5000/1756/1789/1794/1760/1788, PLC-5/1771/1785 and etc.
--- Industrial robot parts of DSQC series, Bailey INFI90, etc.
---Siemens: Siemens MOORE, Siemens Simatic C1, Siemens numerical control system, etc.
---Motorola: MVME162, MVME167, MVME1772 and MVME177 series.
5SHX0660F0002Using ECPs, it is possible to distribute up to 40 A of bulk upstream power to many individual Class 2 downstream circuits. Designers can therefore choose fewer, but larger, upstream power supplies as needed, perhaps even incorporating redundancy or an uninterruptible power supply. 5SHX0660F0002ECPs also have many other benefits.
5SHX0660F0002Because intelligent power distribution devices perform their ECP function using digital methods, the protection reacts faster than other physical methods, such as fuses or traditional circuit breakers. The response is more reliable than the trip curve of a standard breaker or fuse, and it is much closer to the desired protection level selected. For example, if 2 A protection is desired, the ECP trip curve is nearly 2.1–2.2 A, while it may be as high as 6 A for a breaker. 5SHX0660F0002This ECP responsiveness provides accurate overcurrent selectivity with other circuits, and it helps prevent voltage drops and even cable fires.An ECP monitors the current on each individual output channel, 5SHX0660F0002and it provides users with the ability to turn each output channel on and off individually, for example via remote signaling from control systems. Upon startup, 5SHX0660F0002the output channels are automatically started in a cascade manner to reduce the system inrush and minimize the chance of upstream overcurrent trips.