Purpose of the development: The device is designed to control a reversible or irreversible controlled three-phase thyristor rectifier in the current and voltage stabilization modes and to control the triggering angle with the linearization of the regulation characteristics, and for the power control of three-phase heaters and other processes which need the regulation of the effective value of the output voltage.

Recommended application field: Production and modernization of existing rectifiers for galvanizing lines Electrochemical metalworking machines Using in airfield start-charging rectifier with 28 V output voltage Power control of three-phase heaters and other processes with RMS value regulation of output voltage

Technical characteristic: Working in reverse mode RC-S - no RCD - yes Voltage power supply, V - 3-380 + N Supply frequency, Hz - 50 ± 1 The nominal output voltage of the rectifier when the non-isolated current and voltage sensors (switches), B - 6; 12; 24; 48 Rated output voltage of the rectifier module when working with electrical isolation current sensor and voltage, V - 540 Static error stabilize the output voltage, current - no Analog task B - 0 to 10 (or ± 10) Number of analogue reference inputs - 2 Resolution ADC bits - 12 Input voltage from the current sensor, mV - ± 75 The control system vypryamitelem- digital microcontroller Installing the operating modes (stabilization of current and voltage regulation of opening angle, reversing the polarity of the rectifier) - External binary inputs as well as inputs for the RS-485 interface Selection of the rectification circuit, and others. Settings-DIP-switch on the control board Fine-tuning the control ranges of the coefficients of the PI controller, the initial and final regulatory corners - the variable resistor on the control board Number Rectifier temperature sensors - 2 Display modes and emergencies - LED fixture that connects to discrete outputs of the control unit, as well as RS-485 interface The degree of protection - IP56 Dimensions (HxWxD), mm - 200х250х100

Advantages over analogues: Operates with different rectification circuits. 6-pulse or 3-pulse rectification. Possibility of the independent control of 12 thyristors. Use rectifiers with output currents from 100 A to 3000 A, and more. Can operate with a step-down transformer with any group of connections. Operates with analogue reference 0...10 V (optional — ±10 V). Operates with the reference on the digital interface One isolated RS-485 interface for networking. One non-isolated RS-485 interface for connecting a digital remote control. USB-interface for debugging. Possibility of the automatically reverse polarity of the rectified voltage (with digital reference). A shunt as a current sensor. Isolation output voltage and current sensor of the control circuit (optional). Selection of the control modes and the setup without any additional equipment. Protective design &mdash IP56 standart. Simple fault diagnostics. Quick response protection system: Overload and short circuit load protection. Rectifier's thyristors overheat protection. Protection against failure and phase imbalance.

The development stage readiness: Introduced in production

Description of the development:
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The Thyristor Rectifier Control Device available in two versions: RC-S is to control one group of thyristors (non-reversible rectifier), RC-D is to control two groups of thyristors (reversible rectifier). The models, RC-SL and RC-DL designed for work in rectifiers with output voltages 6, 12, 24 and 48 volts, using of power step-down transformer connected between power supply and rectifier bridge. For work in rectifiers with higher output voltages, it is necessary to use control units, RC-SH and RC-DH, with galvanic isolation module of the output voltage/current sensor. Device designed as form of block in a sealed plastic box, and allow operate in wet and aggressive conditions of electroplating facilities. All external connections of unit are demountable and do not require soldering, which make installation more simple and reduce time of the device commissioning. Device has a protection system with an indication on the external connected LED indicators. When protection activated, corresponding digital output which can also be used to monitor the status of the rectifier by the control device of the upper rank. Device has a protection system with an indication on the external connected LED indicators. When protection activated, corresponding digital output which can also be used to monitor the status of the rectifier by the control device of the upper rank. It is also possible to connect a remote control: analog or digital via the interface RS-485 - as well as to build a network of the isolated interface RS-485 for controlling and monitoring the rectifiers group.

corresponds technical description
Conforms to technical characteristic

Possibility of transfer abroad:
Realization of finished commodity

Photo

Country Ukraine

For additional information turn to:
E-mail: gal@uintei.kiev.ua