This equipment is a test power supply designed and produced in accordance with the requirements stipulated in Clause 7.8.2 of the power industry standard DL-1312-2013 "Technical Conditions for Copper Clad Steel for Grounding in Power Engineering". The load is the grounding electrode test sample. Connect the test subject to the test circuit, apply current to gradually increase the temperature of the test subject to 90% of the melting value, then stop the current increase and maintain this temperature for 3 to 10 seconds, and then stop applying current. When the test subject cools to a certain temperature below 100℃ (this temperature can be set), proceed to the next high-current test cycle. After a total of three high-current cycle experiments, the test was concluded.
Key words：
Techicel Conditions
| Usage environment | Indoors, the ambient temperature is 5°C-35°C, the altitude does not exceed 1500 meters, and the relative humidity of the air is less than 85% at 25°C. There is no conductive dust around the Egyptian explosive gas site. The installation inclination of the box should not be more than 5°. |
| Rated AC input power | Main power supply two-phase AC380V 50Hz control power supply Single-phase AC220V 50Hz |
| Rated output voltage | AC11.5V-17V (Voltage regulation by transformer primary gear switching) |
| Rated output current | AC15KA |
| Sample temperature measurement method | Non-contact infrared temperature measurement Temperature measurement range: 0-1000°C. (Measurement accuracy± 1.5°C) |
| Output current stabilization accuracy | 1% |
| Output voltage regulation accuracy | 0.5% (Steady/Voltage Regulator Switchable) |
| Pressure regulation method | On the secondary side of the transformer, the triac AC voltage regulation method is adopted; |
| Control mode | Manual or automatic mode is available; |
| Equipment cooling method | Air cooling |
| Protection function | It has protection functions such as cooling fault, component over-temperature, fuse fuse alarm, output current overcurrent, etc. |
DC uncontrolled rectifier power supply
| Model | AC input | DC output | Rectified line | Overall Dimensions (mm) | remark | |||||
| Count | Voltage (V) | Power (KW) | Current (A) | Voltage (V) | high | wide | deep | |||
| KDC1000A/200V | 3 | 380 | 200 | 1000 | 200 | Bridge style | 2200 | 800 | 600 | Complete machine (including dry-type transformer) |
| KDC1000A/400V | 3 | 380 | 400 | 1000 | 400 | Bridge style | 2200 | 800 | 600 | Complete machine (including dry-type transformer) |
| KDC1000A/600V | 3 | 380 | 600 | 1000 | 600 | Bridge style | 2200 | 800 | 600 | Complete machine (including dry-type transformer) |
| KDC1000A/800V | 3 | 380 | 800 | 1000 | 800 | Bridge style | 2200 | 2000 | 1500 | Complete machine (including dry-type transformer) |
| KDC1500A/200V | 3 | 380 | 300 | 1500 | 200 | Bridge style | 2200 | 1000 | 800 | Complete machine (including dry-type transformer) |
| KDC1500A/400V | 3 | 380 | 600 | 1500 | 400 | Bridge style | 2200 | 1000 | 800 | Complete machine (including dry-type transformer) |
| KDC1500A/600V | 3 | 380 | 900 | 1500 | 600 | Bridge style | 2200 | 2000 | 1500 | Complete machine (including dry-type transformer) |
| KDC1500A/800V | 3 | 380 | 1200 | 1500 | 800 | Bridge style | 2200 | 1000 | 800 | Complete machine (non-type transformer) |
| KDC2000A/200V | 3 | 380 | 400 | 2000 | 200 | Bridge style | 2200 | 1200 | 1000 | Complete machine (including dry-type transformer) |
| KDC2000A/400V | 3 | 380 | 800 | 2000 | 400 | Bridge style | 2200 | 2000 | 1500 | Complete machine (without transformer) |
| KDC2000A/600V | 3 | 380 | 1200 | 2000 | 600 | Bridge style | 2200 | 2200 | 1700 | Complete machine (without transformer) |
| KDC2000A/800V | 3 | 380 | 1600 | 2000 | 800 | Bridge style | 2200 | 2200 | 1700 | Complete machine (without transformer) |
| KDC2500A/200V | 3 | 380 | 500 | 2500 | 200 | Bridge style | 2200 | 1400 | 1200 | Complete machine (including dry-type transformer) |
| KDC2500A/400V | 3 | 380 | 1000 | 2500 | 400 | Bridge style | 2200 | 2000 | 1500 | Complete machine (without transformer) |
| KDC2500A/600V | 3 | 380 | 1500 | 2500 | 600 | Bridge style | 2200 | 1400 | 1200 | Complete machine (including dry-type transformer) |
| KDC3000A/200V | 3 | 380 | 600 | 3000 | 200 | Bridge style | 2200 | 1400 | 1200 | Complete machine (including dry-type transformer) |
| KDC3000A/400V | 3 | 380 | 1200 | 3000 | 400 | Bridge style | 2200 | 2000 | 1600 | Complete machine (without transformer) |
| KDC3000A/600V | 3 | 380 | 1800 | 3000 | 600 | Bridge style | 2200 | 2000 | 2000 | Complete machine (without transformer) |
FAQ
Here, common questions are answered and clarified
Voltage fluctuation fault
● Youdaoplaceholder6 Common causes:
- The external power supply is unstable or abnormal.
- There is a wiring error during the operation of the equipment.
- Environmental factors (such as temperature changes) cause voltage fluctuations.
● Solve the problem:
- Use a reliable power supply and avoid relying on external power sources.
- Check and adjust the connection method of the equipment.
- Reserve sufficient protection circuits or use step-down circuits to limit the impact of voltage fluctuations.
Short-circuit fault
● Youdaoplaceholder6 Common causes:
- Internal circuit short circuit (such as coil damage).
- External short circuit (such as short-circuiting of power pins).
● Solve the problem:
- Inspect the internal structure of the equipment, identify and repair the short-circuit points in the internal circuits.
- Use disconnected pins or external pins for protection and isolation.
- Reserve sufficient buffer layers or cooling systems to prevent the silicon wafers from overheating and getting damaged.
Current out-of-control (IQN) fault
● Youdaoplaceholder6 Common causes:
- The external current is too large, causing the silicon wafer to bear an excessively high current.
- During the operation of the o equipment, the load was too heavy, causing the silicon wafers to be overloaded.
● Solve the problem:
- Reserve sufficient safety current to ensure that the current during equipment operation does not exceed the designed maximum value of the silicon wafer.
- Use protection circuits or step-down circuits to limit the influence of external currents.
- Reserve sufficient buffer layers to prevent excessive current from damaging the silicon wafer.
Excessively high temperature fault
● Youdaoplaceholder6 Common causes:
- High-temperature environments cause silicon wafers to expand due to heat and get damaged.
- The cooling system failed to effectively cool the silicon wafers.
● Solve the problem:
- Reserve sufficient buffer layers or cooling systems to prevent the silicon wafers from overheating and getting damaged.
- Use a heat sink or coolant (such as water) to lower the temperature of the silicon wafer.
- Regularly inspect and maintain the cooling system of the equipment.
Overload fault
● Youdaoplaceholder6 Common causes:
- During the operation of the equipment, the load was too heavy, causing the silicon wafers to bear excessive current.
- If the external load exceeds the design maximum value of the silicon wafer, it may cause damage to the silicon wafer.
● Solve the problem:
- Reserve sufficient safety load to ensure that the load during equipment operation does not exceed the design maximum value of the silicon wafer.
- Use protection circuits or step-down circuits to limit the influence of external loads.
- Reserve sufficient buffer layers to prevent the silicon wafer from being damaged due to excessive load.
Summary of Solutions for Current Anomaly (IQN) Faults
● Test with a volt-ampere meter: Measure the output voltage and current to ensure they meet the design parameters of the silicon wafer.
● Apply phase difference test: Check the phase deviation of the silicon wafer to ensure its stability in AC signals.
● Dynamic calibration equipment: Dynamically adjust the equipment or external power supply according to the actual working environment (such as temperature changes).
Through regular Testing and Diagnosis processes, faults of thyristor equipment can be identified and resolved more accurately.
Certification
It has passed the ISO9001:2015 quality management system certification. In 2005, it was awarded the titles of "National Rectifier Product Quality Assurance and Honest Business Demonstration Unit" and "National AAA Quality Brand Enterprise" by the China Marketing Association. It has been rated as a "Contract-abiding and Creditworthy Enterprise" by the Wuhan Administration for Industry and Commerce for many years.
Project Case
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Factory
The total number of employees in the unit, including the situation, number and composition ratio of technical personnel at all levels, currently has over 60 employees, including more than 18 engineering and technical personnel. Among them, there are 4 senior engineers, 10 engineers, and 4 assistant engineers and technicians.
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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.