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 comparable 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 have 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 has a small size and light weight, adopts an integrated structure, features stepless output current adjustment, balanced current rise, wide load variation range, uses 0.1-class current transformers, digital display, beautiful 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 shell, operation console, etc. must be properly grounded.
2. Connect the power supply, the green indicator light on the operation console lights up. Press the start button, the red indicator light lights up, and the current generator is ready 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, cut off the power immediately, 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, 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 test device 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, measure the insulation resistance between coils and between coils and ground with a 1500 megohmmeter. Only when the resistance value is not less than 0.5 megohm can it be used.
6. During use, the current generator transformer and operation console must be reliably grounded to ensure safety.
7. When in use, the current should be raised slowly and evenly, and avoid excessive vibration during handling.
8. The contact surface between the voltage regulator and the 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 place.
