multiplex cathodic protection rectifier PS-3G

  Product Description   1. General           The rectifier of auto-control is used in station yards, such as distribution stations, pipeline pressure stations, oil and gas storage depots, to protect regional buried facilities and to apply different impressed current to protect different metallic structures independently in the same area. The rectifier of auto-control has been provided advanced index, high reliability and long service life.   PS-3F multiplex rectifier of auto-control is and apparatus of which the output of each subcircuit is independent. The current of each subcircuit can be adjusted independently. There are constant potential control function and constant current control function, manual adjustment and synchronous on-off test operation modes in each subcircuit. The rectifier of auto-control has been provided with protections against overcurrent, lightning and AC interference.       3. Technical Performance  

Power supply	Single Phase AC220V ± 10%,50Hz ± 5%: three phase380 x (1 ± 10%) V,50 x (1 ± 5%) Hz.
Independent output	When changing output of one subcircuit, the others wont be influenced.
Output voltage and output current	Adjustable ranges of output voltage and output current of each subcircuit: 1%~ 100% rated value. The rated output value can be set according to users' requirement.
Ripple coefficient	Ripple coefficient is not more than 5% when subcircuit is operating on rated output state.
Operation mode	1. Manual adjustment operation mode 2.Constant potential operation mode 3. Constant current operation mode
Reference input impedance	≥1 MQ
alarm function	There is alarm function when protection potential departures from control potential.
protection	1. overcurrent protection 2. Lightning protection: Input terminals and output terminals are equipped with 3 class lightning discharge system which includes sawtooth-type spark gap, varistor surge absorption and regulator diode limiter. And the circuits meet the requirements of IEC1024. 3.Protection against reversed polarity: The rectifier of auto-control will close automatically when there is reversed polarity.
Resist interference	Reference input terminal can resist AC interference and instantaneous interference.
On-off test	On-off test can be selected through keyboard and remote control on-off interface. The time for on and off can be set In test, the current will come into the intermittent state and the unit will not alarm when the current is off and there is no current impact when unit switches to on-state from off-state.
Measurement and display	Each subcircuit has been provided with large screen LCD to display output current, protection potential, control potential, output voltage, and operation mode of each subdrcult. The rectifier of auto-control can monitor the AC input voltage.
Data communication interfaces	The rectifier of auto-control can be equipped with various communication interfaces (eg. USB interface, point-to-point interfaces, RS485 interface, RS232 interface, etc) to transmit, storage, measure operation data remotely, such as potential signal, current signal, voltage signal. Through these interfaces, synchronous on-off test can be controlled remotely

      Similar products   PS-3E          Company Introduction               Founded in 1972, the successor of Sanming No.2 Radio Factory, Fujian Changlian Electronic Co., Ltd is a high-tech enterprise,specializing in the manufacturing, developing, producing and managing a variety of anticorrosive protection apparatuses and equipments.Our business scope are including designing, manufacturing, installing and maintaining metal corrosion-proof instrument, electrochemical measuring instrument, corrosion-proof local test instrument, metal surface treatment instrument, various electrodes and related ancillary product. Covering an area of 16500 m2, our company produces 15000 units (sets), with whole product line, including cold-working, machining, welding, surface electrostatic powder spraying, printing plates, panels, circuit board welding, machine assembly, commissioning, testing, and packaging. We have established sound regulatory framework, strict operating procedures and standardized work instructions, and product manufacturing process is in conformity with the requirements of ISO9001: 2008 quality management system requirements. Recently, our company have received lots of certificates and honor, such as “Enterprise Adopting International Standard”, “ISO Quality System Authentication”, “License of material supplier of CNPC”,”High Quality Anticorrosion Products”, “Urban Clean Product Qualified Enterprise”, “Advanced Enterprise of Ratepaying”, “Innovate Experimental Unit”, “Utility Model Patent”, “6.18 Outstanding Innovative Products”.