What is a high current generator???
Answer: Generally, it is a transformer of several kilowatts with a secondary winding made of large cross-section wire, wound to about 10V. The primary of this transformer is connected to a voltage regulator of equivalent power. When the regulator adjusts the output voltage, the low-voltage winding of the transformer will increase the current output as the primary voltage rises. This type of current generator is mainly used for testing the load capacity of switch contacts and detecting contact resistance. If there is no such application, it is not useful to purchase one.
High current generator is a specialized equipment designed and manufactured for electrical equipment tests in power departments and industrial and mining enterprises, such as current load tests and temperature rise tests for various switches, current transformers, and other electrical equipment. This product features small size, light weight, integrated structure, stepless current output adjustment, balanced current rise, wide load variation range, 0.1-class current transformer, digital display, attractive appearance, reliable operation, simple operation, and safety. It is an ideal equipment for current rise or temperature rise tests in industrial and mining enterprises.
1. Connect the working circuit according to the electrical schematic diagram. The transformer casing, operation console, etc. must be properly grounded.
2. Connect the power supply, the green indicator light on the operation console will turn on. Press the start button, the red indicator light will turn on, and the current generator will wait for current rise.
3. Rotate the voltage regulator clockwise evenly, and pay attention to the output current indication on the operation console until the required high current is reached. To ensure test accuracy, a standard ammeter can be connected in series at the instrument terminals.
4. During the test, if any abnormal phenomenon is found, immediately cut off the power supply, find out the cause, and then conduct the test again.
5. After the test, the voltage regulator must be returned to zero, press the stop button to cut off the power supply, and then cut off the working power before removing the test wiring to ensure safety.
SLQ-500A high current generator main technical parameters:
1. Rated capacity of current generator: 2KVA
2. Rated capacity of voltage regulator: 2KVA
3. Rated input voltage: 220V
4. Rated input current: 9.09A
5. Rated output current: 500A
6. Rated output voltage: 5V
7. Impedance voltage: <8%
8. No-load current: <6%
9. Structure form: integrated
SLQ- precautions:
1. The cross-section of the input power cable of this tester should be greater than 2mm2, and the cross-section of the high current output connecting cable should be greater than 100mm2, and the length of the output connecting cable should be shortened as much as possible.
2. As long as the output current requirement can be met, use parallel output as much as possible.
3. Avoid continuous output for a long time.
4. For safety, the grounding terminal should be reliably grounded.
5. When newly installed or not used for a long time, before operation, use a 1500 megohmmeter to measure the insulation resistance between coils and between coils and ground. Only when the resistance value is not less than 0.5 megohms can it be used.
6. During use, the current generator transformer and operation console must be reliably grounded to ensure safety.
7. When using, slowly and evenly increase the current, and avoid excessive vibration during handling.
8. The contact surface between the voltage regulator and the carbon brush should be kept clean. If necessary, wipe it clean with cotton yarn dipped in 90% alcohol.
9. This equipment should be stored in a clean, ventilated, dry, and indoor environment.
