KGSF-Ⅲ type laying machine thyristor techniques described apparatus
产品型号说明 I. Product model description
Second, the main technical indicators
AC input Rated voltage: three-phase four-wire AC380V (-10%, + 15% , diesel power generators)
AC input Rated frequency: 50Hz
DC rated output voltage: 461V
DC rated output current: 200A, 300A, 400A, 500A , 600A
DC output voltage adjustment range: 0% to 100%
cabinet dimensions (H * W * D):
Cabinet Color: RAL7011 (gray iron)
Altitude: not more than 2000 meters
temperature: -5 ℃ ~ 45 ℃
Relative humidity: 95% (25) ℃
Earthquake class: 7
installation location: the laying unit body
Protection class: IP23
Fourth, the main performance features and functions
rectification system consists of a three-phase full-controlled bridge power unit + number + switching power supply regulator (bis) and other parts, with perfect rectifier trigger adjustment, over-current protection system, no phase sequence power input functions.
6 sets of KP500A / 2500V thyristors are used in the main circuit thyristor power unit. They are press-fitted in SF12 / SF15 radiators and have a drawer structure. The cooling method is forced axial cooling by an axial fan.
digital regulator is composed of intelligent chips of ultra-large-scale integrated circuits and high-speed analog-to-digital converters. It has no phase sequence requirements for input power, wide operating voltage range, good waveform symmetry, high control accuracy, high trigger power, and anti-interference. Powerful, stable and reliable work, and other significant features; and the use of PLC chassis structure, 35mm standard rail mounting, Phoenix pluggable terminal blocks, reliable contact, easy disassembly and assembly.
switching stabilized voltage power supply is selected from Mingwei of Taiwan, which has the advantages of wide input voltage range, high reliability, and card-rail installation, etc., and uses two power supplies in parallel to increase the reliability of equipment operation.
system has a zero-position lock function, that is, the car is driven again after each stop, and the given potentiometer must be turned counterclockwise to the head before the system can work normally. If the given potentiometer does not return to zero, the output voltage will also be zero to prevent the system from flying.
system has the function of internal setting or external setting. 调节直流输出电压，并在外附指针式电压/电流表上可显示相应数值。 When the toggle switch is set at a given position, the DC output voltage can be adjusted in the driver's cab , and the corresponding value can be displayed on the external pointer-type voltage / current meter.