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Product Introduction

Products

As a designated manufacturer of rectifiers by the former Ministry of Machinery Industry, we specialize in the production of electrolytic and electrochemical rectifiers. We have numerous production achievements and rich manufacturing experience in the electrolytic copper industry.

Product Classification

Thyristor rectifier unit

A silicon rectifier is a rectifier device that uses the semiconductor principle of silicon to convert alternating current into direct current. It features high rectification efficiency, no noise, large power, small size, easy operation and maintenance. It has been widely applied in electrolysis, electroplating, cascade speed regulation of wire-wound motors, speed regulation of DC motors, medium-frequency power supply chargers, general silicon rectification, motor excitation and other fields.

KGHS-30KA/42V

12MWDC-40KA/300V

This rectifier unit is used for the scientific experiment of multiphase flow energy transfer and as the power supply for the critical heat flux density experiment of fuel assemblies. It meets the requirements of multiple tests for stable voltage, adjustable voltage and low ripple of DC power supply.

12MWDC-40KA/300V

Thyristor rectifier unit

The KHS-16KA/110V wet electrolytic copper thyristor rectifier is composed of high-voltage switch cabinets, on-load voltage regulating rectifier transformers, central control consoles, rectifier main cabinets, DC high-current shunt devices, pure water main water coolers, external circulation cooling auxiliary water, high-voltage cables, copper busbars connecting transformer rectifier cabinets, flexible connection copper busbars, etc. The main incoming line is powered by three-phase 10KV and three-phase 380V50HZ AC power supplies. The on-load tap-changing transformer and thyristor combined voltage regulation method is adopted, which is characterized by wide voltage regulation under high power factor.

KHS-16KA/110V

Electrophoretic thyristor rectifier

Electrophoretic painting is a coating method that uses an external electric field to make the paint particles suspended in the electrophoretic paint liquid migrate directionally and deposit on the surface of metal workpieces. The basic principle is to take advantage of the physical property that "opposite charges attract" of charged particles, making the charged paint particles attract the electrode with the opposite charge. The electrophoretic paint liquid tank serves as one electrode, and the metal workpiece to be coated, which is immersed in the paint liquid, acts as the corresponding other electrode. When a direct current power supply is applied, the anode (cation) paint ions move towards the anode (cation) workpiece and then deposit on it, forming a uniform and continuous coating film on the surface of the workpiece. When the coating film reaches a certain thickness, an insulating layer forms on the surface of the workpiece, and the "opposite poles attract each other" force is insufficient, causing it to stop The electrophoretic painting is completed. This electrophoresis rectifier serves as the DC power supply for providing the electrophoresis electric field.

KYF-800A/400V

Dual-pulse capacitor charger

The dual-pulse capacitor charger is mainly used for capacitor charging. It features a single-phase AC 220V input, voltage regulation by an autotransformer voltage regulator, rectification by two sets of single-phase bridge diodes, and a dual-loop output of 1100VDC. It is equipped with a discharge circuit. After the test is completed, press the discharge button to connect the discharge relay. The charge on the capacitor is discharged through the 20K current-limiting resistor. Observe that the voltage on the voltmeter returns to zero. Then release the discharge button and the discharge is complete.

GCA±1000V

Load and adjust the power supply of the site

The AC power supply is introduced into the three-winding rectifier transformer through the main power supply air switch, AC filter, phase sequence protection relay and AC contactor. There are two three-phase windings on the secondary side of the transformer, which are connected in delta and star configurations respectively. Among the two three-phase windings, the phase difference between the in-phase windings is 30°, and the output line voltage of both is AC242V. The output of the six-phase transformer is connected to two sets of three-phase bridge thyristor rectifier modules. After rectification, it is output in series as DC650V, a 12-pulse DC voltage with an inherent pulsation coefficient of 1.4%. Then, it is filtered by the DC filter LC and connected to the DC output terminal block in two channels through the DC contactors BZ01 and BZC2. The two DC contactors can independently control any one of the outputs. Or output two channels simultaneously.

Load and adjust the power supply of the site

Intelligent charging equipment for torpedo batteries

The ZC-1 type torpedo battery intelligent charging equipment is the latest high-tech product developed in response to the charging and discharging requirements and characteristics of torpedo batteries. It consists of three major parts: charging, discharging and battery detection. The charging mode and charging battery can be selected through the display interface. In the charging mode, you can choose either a fixed charging mode or a set charging mode. In each mode, there are three types of rechargeable batteries available for selection, namely silver-zinc batteries, lead-acid batteries and imported batteries. In the fixed charging mode, once the charging parameters for each type of battery are set, subsequent charges will be made according to the set parameters without the need for further Settings. In the configurable mode, the operator is prompted to set parameters before charging each type of battery.

ZC-1

Uncontrolled silicon rectifier power supply

The DC-1000A/1000V non-silicon rectifier power supply device is used as a general industrial DC power supply. The device consists of a cabinet, silicon rectifier components, circuit breakers, protection and control electrical components, etc. The main power supply line is powered by a three-phase 0-800V 50Hz AC power supply, and the control power supply is powered by a three-phase 380V50Hz power supply.

DC1000A/1000V

Hot-dip galvanized rectifier

Arc zinc spraying is a metal surface anti-corrosion spraying technology. It uses double-line arc spraying. The arc generated by short-circuiting a direct current power supply melts the zinc wire, and then the high-pressure gas produced by an air compressor sprays the melted zinc ions onto the metal surface, forming a zinc ion protective film on the protected workpiece. The working principle is described as follows: Two wire materials used for spraying are continuously introduced into the nozzle of the spray gun by the wire feeding mechanism. The two ends of the spray gun are connected to the positive and negative poles of the zinc spraying rectifier. The tips of the wire materials are joined at a certain Angle at the outlet of the spray gun. When the wire feeding machine is connected, the two ends of the wire materials short-circuit at the outlet of the spray gun to generate an electric arc. The high temperature of the electric arc melts the wire materials. If the arc burns stably, the wire feeder continuously pushes the wire forward. The front end of the spray gun is equipped with a nozzle that outputs high-pressure air. Under the action of the air compressor, the compressed air continuously sprays out high-pressure gas. The molten metal particles are atomized under the action of the high-pressure gas flow and are quickly sprayed onto the surface of the substrate and solidified to form a coating. The process of arc spraying can roughly be divided into three parts: the melting and atomization stage of the wire material; The flight stage of molten metal particles; The particles are sprayed onto the substrate and enter the stage of accumulation and solidification. Controlling the movement speed of the wire feeding mechanism can alter the DC output current, thereby changing the size of the molten metal particles sprayed onto the workpiece.

GYF-2000A/31V

Electric heating rectifier for preheating furnace

A thyristor rectifier is a rectifier device that uses the semiconductor principle of silicon to convert alternating current into direct current. The PCVD preheating furnace temperature control system adopts a thyristor rectifier circuit, which features high rectification efficiency, large power, low noise, small size, easy operation and maintenance. One device provides 1 main terminal DC power supply, 1 gas terminal DC power supply, and 1 pump terminal DC power supply, among which: The electric heating rectifier of the preheating furnace provides three DC power supplies. Among them, the main heating system of the preheating furnace body adopts a three-phase fully controlled bridge rectifier circuit, and the temperature compensation systems at the gas end and pump end of the furnace body also adopt It is a single-phase fully controlled bridge rectifier circuit.

KTZ-260/400

Medium Frequency Heating Power Supply for Locomotive Wheel rims

A medium-frequency power supply is a power device that converts a 50-hertz industrial frequency power supply into the required frequency through a thyristor inverter. It is widely applied in industrial fields such as smelting, induction heating, metal surface quenching, forging, smelting, precision casting, welding, and piping. The KGPS series medium frequency power supply I produce adopts the most advanced control technology and production process in China at present. It has the following features:<br /> 1.Digital circuits, as the control core, have the advantages of strong control ability, good anti-interference performance, and few peripheral discrete components. The entire control circuit is installed on a 268mmx225mm printed circuit board, and the number of connections with the main circuit is reduced to only twenty-seven. The main components are all imported parts and are assembled after strict aging and screening, so the reliability is very high.<br /> 2. The control board eliminates the large-sized synchronous transformer and various other control transformers in the rectifier circuit. It does not recognize the phase sequence, further simplifying the overall circuit and reducing the equipment volume. It also has a complete set of multiple protection measures such as overcurrent, overvoltage, phase loss and low water pressure. The protection action is rapid. Once a circuit fault occurs, the system can act in a very short time to reliably protect the thyristor and capacitor from damage.<br /> 3. It adopts zero-voltage swept-frequency soft start and a dual closed-loop regulation system with current negative feedback and voltage negative feedback, enabling the power supply to start reliably in actual use. It has excellent current and voltage cut-off effects and features no impact during start-up and constant power regulation.

KGPS-160KW

KGLF11-450A/170V

Synchronous motor

The KGLF11 thyristor excitation device is suitable for constant excitation of synchronous motors starting under heavy or light loads, and is also applicable for excitation of small generators. This device has the following features:<br /> 1.The rotor circuit of the synchronous motor adopts a three-phase fully controlled rectifier bridge fixed excitation circuit, maintaining the inherent starting characteristics of the synchronous motor.<br /> 2. There is no direct electrical connection with the stator circuit of the synchronous motor. Therefore, the synchronous motor can be designed as high-voltage (3-6-10KV) or low-voltage (380V) according to the conditions of the power grid, and full-voltage starting or reduced-voltage starting is not restricted.<br /> 3.When starting a synchronous motor at full voltage, when its speed reaches sub-synchronous, excitation can be put into operation with a rotor slip of 5% to 4% in the forward polarity to drag the synchronous generator motor into synchronous mode. Alternatively, excitation operation can be delayed for a certain period of time after the motor is connected to the power grid.<br /> 4. For a synchronous motor starting with reduced voltage, when the rotor speed reaches about 90% of the synchronous speed, the reduced voltage starting reactance or resistance is automatically disconnected, and the full voltage is automatically engaged to accelerate the start-up of the synchronous motor to sub-synchronous speed. The excitation is carried out in a stepwise manner with a slip of 5% to 4%, thus pulling the synchronous motor into synchronous operation. <br />5. When the grid voltage fluctuates, it features negative voltage feedback and automatically maintains a basically constant excitation. When the grid voltage drops to a certain percentage, it suddenly intensifies the excitation, with a strong excitation time of 10 seconds or 40 seconds.

KGLF11-450A/170V

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Address: C5-1-1, Huazhong International Industrial Park, Yangluo Port, Wuhan City

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