ABB 5SHX1445H0001 3BHL000391P0101 Thyristor module

ABB 5SHX1445H0001 3BHL000391P0101 Thyristor module

IGCT Integrated Gate Commutated Thyristors (IGCT) is a new type of power semiconductor switching device (integrated gate commutated thyristor=gate commutated thyristor+gate unit) developed by medium voltage inverters and used in giant power electronics packaged devices. It was proposed by ABB in 1997. IGCT enables the converter to operate at
Significant progress has been made in power, reliability, switching speed, efficiency, cost, weight, and volume, bringing a new leap forward to complete power electronic devices. IGCT integrates a GTO chip with an anti parallel diode and gate driver circuit, and then connects it with its gate driver in a low inductance manner on the periphery. IGCT combines the advantages of the transistor’s stable turn-off capability and the low on-state loss of the thyristor, giving play to the performance of the thyristor during the turn-on phase, and presenting the characteristics of the transistor during the turn-off phase. IGCT has the characteristics of high current, high blocking voltage, high switching frequency, high reliability, compact structure, and low conduction loss, as well as low manufacturing cost and high yield. It has been widely used in power system power grid devices (100MVA) and medium power industrial drive devices (5MW). IGCT has been successfully applied in the field of medium voltage inverters for 11 years (until 2009). Due to its high-speed switching ability, IGCT does not require buffer circuits, As a result, fewer power components are required and operational reliability is greatly improved.
IGCT integrates the high-speed switching characteristics of IGBT (insulated gate bipolar transistor) and the high blocking voltage and low conduction loss characteristics of GTO (gate off thyristor). Generally, trigger signals are transmitted to IGCT units through optical fibers. In the phase module of the rimmed rectifier unit of the ACS6000, each phase module is composed of an IGCT, a diode, and a clamp capacitor, and is powered by an independent gate power supply unit GUSP.

5SHX1445H0001

CPU module
The CPU module mainly consists of a microprocessor (CPU chip) and memory. In a PLC control system, the factory CPU module is equivalent to a human brain. It continuously collects input signals, executes user programs, and refreshes the system’s output; Memory is used to store programs and data.
2. I/O module
The input and output modules are referred to as I/O modules for short. They are the eyes, ears, hands, and feet of the system, and serve as a bridge between external field devices and CPU modules.
The input module is used to receive and collect input signals, and the switch input module is used to receive slave buttons; Switch input signals from selector switches, digital dial switches, limit switches, proximity switches, photoelectric switches, pressure relays, etc; The analog input module is used to receive continuously varying analog current and voltage signals provided by potentiometers, tachogenerators, and various transmitters.
The switch output module is used to control output devices such as contactors, solenoid valves, electromagnets, indicator lights, digital display devices, and alarm devices, while the analog output module is used to control actuators such as control valves and frequency converters.
The working voltage of the CPU module is generally 5V, while the input/output signal voltage of the PLC is generally higher, such as DC 24V and AC 220V. Peak voltages and interference noises introduced from outside can damage components in the CPU module or prevent the PLC from working properly. In the I/O module, devices such as optical couplers, photoelectric thyristors, and small relays are used to isolate the internal and external I/O circuits of the PLC. In addition to transmitting signals, the I/O module also has level conversion and isolation functions.

5SHX1445H0001

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