The electric welding machine uses inductance to make the contact and the object to be contacted to complete the welding function. It is actually a very high-power transformer that can instantly convert electrical energy to thermal energy.

In order to improve the stability and reliability of electric welding machine products, electric welding machines need to be loaded and aging, which is an important production process for various manufacturers to improve product quality and competitiveness, and it is indispensable. Load aging is to use an external power supply to increase the current of the welding machine to the maximum and maintain it for a certain period of time. Because the working current of the electric welding machine is relatively large, the aging process consumes a lot of energy.

Tonghui's product TH6600 series programmable high-power DC power supply is particularly helpful to the aging of electric welding machines. This is a two-way power supply with integrated source and load with feedback. When output as an electronic load, it can recover up to 92.5% of energy, which can greatly reduce the energy consumption during the aging process, which not only reduces the cost pressure of the manufacturer, but also Contribute to energy saving and emission reduction all over the world.

Example: An electric welding machine with a current of 500A and a voltage of 24V needs to be aged. What product should be recommended?

When the welding machine is aging, the main reason is that the current must be fully loaded, and the voltage can be as low as 1V, so when choosing a product, focus on the current.

TH6600 series TH6680 has three specifications, outputting 120A, 240A and 360A current respectively. For this project, two 360A TH6680-360-15 can be selected for parallel operation and absorb 500A current. The total energy consumption is 15kw*2*(1-92.5%) = 2.25kw.

Technical information of TH6600 series. (Please contact sales staff for more information)

Main Feature

■ Power supply: 342VAC-528VAC, 44-66Hz

■ Two-way power supply and regenerable load are integrated

■ Up to 92.5% energy feedback efficiency

■ Output voltage 0-80VDC

■ Current output: 120A, 240A, 360A

■ Power output: 5KW, 10Kw, 15KW

■ Wide range of constant power output, which can be expanded up to 480kW

■ With CV, CC, CR, CP in power mode and CV, CC, CR, CP in load mode

■ Built-in various function generators

■ 7-inch 24-bit colour TFT LCD capacitive touch screen

■ High power density: 3U high, 19-inch chassis, the maximum power of a single machine is 15kW

■ Power factor up to 0.99

■ The knob can be used for coarse and fine adjustment of the voltage and current values

■ Timing output time can be set (0.01-9999.99S)

■ Screen information is stored in U disk

■ Operable interface in Chinese and English

■ Flexible and convenient file operating system

■ The instrument operating software can be automatically upgraded via USB HOST

■ Analog interface is used to realize external analogue control

■ RS232, USB HOST, USB Device, LAN, GPIB can facilitate data communication with PC and remote control of the instrument

■ Built-in hardware OVP, OCP, OPP, OTP protection

■ Support SCPI and MODBUS protocol

A. Wide range output

The wide-range power supply has a wider output voltage and current range than ordinary power supplies. A single-model power supply can meet the testing requirements of customers with multiple specifications. The voltage and current output of the power supply is limited by the limit power. Reduce the output current to obtain a higher voltage or reduce the output voltage to obtain a larger output current, so it is more flexible than the traditional "matrix" power supply. as the picture shows:

B. Two-way power supply

The TH6600 series bidirectional feedback high-power DC power supply can be used as a source output (forward current), but also as a load sink (reverse current), and it has CV, CC, CR, CP operations no matter in power mode or load mode. Suitable for product testing in the fields of electric vehicle motors, controllers, and electric vehicle powertrain systems.

The TH6600 series bidirectional feedback high-power DC power supply can quickly and seamlessly switch when outputting and absorbing current, effectively avoiding voltage or current overshoot. It is suitable for testing energy storage equipment such as batteries, battery packaging, and battery protection boards.

C. Regenerative energy absorption

The TH6600 series of bidirectional feedback high-power DC power supply has a feedback energy absorption function, and the energy feedback efficiency is as high as 92.5%. It can directly return the electric energy to the electricity network and use it directly, instead of directly using heat energy as an ordinary power supply, which greatly reduces the user Cost of electricity.

Due to its direct electric energy feedback feature, it avoids the large volume and large heat of the instrument caused by thermal energy consumption, and the cost of using air conditioning or other refrigeration systems to dissipate heat; it also reduces noise and avoids the cooling process. The generated greenhouse gases or harmful gases cause harm to the environment.

Another benefit of the feedback feature is that a single machine can achieve high power in a small size (the power of a standard size of 3U height can reach 15kW), which greatly saves the volume required to place the instrument.

D. Feedback type energy absorption

The TH6600 series has built-in real function generators that can form the following typical functions, and can apply them to output voltage or output current.

The waveform can be set via the front panel, or uploaded via the host computer or USB.

The instrument has built-in the following standard waveforms, which can be recalled at any time

In addition to the above standard waveforms, arbitrary signal generators can also be used to form more complex function signals. These function signals can be divided into 99 groups of sequences for R&D and product testing. The generated function signals and sequences can be stored in the U disk for easy recall.