Purpose of High Current Generator:
Adopting imported high-permeability magnetic materials, with exquisite design, it features small size, strong electric endurance, and convenient use. This series of high current generators is essential equipment for places requiring high current in electrical debugging across various industries. It is applied in power plants, substations, electrical appliance manufacturing plants, and research and laboratory units, operating under short-time or intermittent duty. It has the characteristics of small size, light weight, and good performance. Suitable for current load tests and temperature rise tests of switches, current transformers, and other electrical equipment at a frequency of 50Hz. This series of products consists of an operation console and a current booster, featuring stepless output current adjustment, smooth current rise, wide load variation range, reliable operation, and simple and safe operation. It can also serve as a current source equipment for current rise or temperature rise tests in industrial and mining enterprises. Equipped with a transformer, it can conveniently read the test current value.
Features of High Current Generator:
A. Light weight, strong load capacity!
B. Output current: Three-phase balanced, waveform is standard sine wave
C. Three-phase simultaneous adjustment, or each phase can be adjusted separately
Note: Three-phase high current generator (current can be increased according to user requirements).
Functional features: (1) Imported iron core, small size (2) 0.5-level digital true RMS meter
(3) No need for external standard CT and ammeter
(4) Coarse and fine adjustment, zero position indicator, power supply 220/380/66V
The high current generator adopts an energy-saving high-permeability current booster, and the instrument is indicated by a true RMS 0.5-level digital meter. It is also equipped with a digital electric stopwatch to meet time measurement requirements. It has the characteristics of high output power, strong overload capacity, clear readings, and flexible movement. It is suitable for power system technicians to test current transformers, protection devices, and secondary circuit current tests.
Input power: AC 220V 50Hz.
Rated output: 0-1500A, 2000A, 3000A, 4000A, 5000A, 8000A, 10000A.
Output terminal open-circuit voltage ≥6V.
Dimensions: 540X300X250 (mm)
Fully Automatic High Current Generator:
Introduction:
Fully automatic high current generator is essential equipment for places requiring high current during debugging in the power and electrical industry. This device has the characteristics of convenient use and maintenance, superior performance, safe and reliable use, beautiful appearance, sturdy and durable, and easy movement. It is necessary equipment for power supply enterprises, large factories, metallurgy, power plants, railways, and other departments requiring electrical maintenance. Using microelectronic processing technology, the entire process can be set in advance, with a full Chinese interface, simple and clear operation. After setting all test items, the test is automatically conducted without manual intervention.
HSXSL-H Fully Automatic High Current Generator
Characteristics:
◆ Date, voltage, current, and time four sets of data are displayed on the same blue 5.7-inch large screen LCD with backlight, clear and intuitive readings, simultaneously displaying voltage, current, time, etc., with various data setting functions and a high-speed thermal printer;
◆ The start/stop conditions of the time relay can be arbitrarily set, with a settable time range of 1 second to 9999 seconds;
◆ High-precision sensors and high-performance 14-bit AD acquisition chips;
◆ Touch-type panel button operation, all functions can be set through buttons, improving product safety, reliability, and intelligent working process;
◆ Optional automatic current rise test, manual current rise test, and impact quick-break test, with flexible and simple operation;
◆ Real-time display of output current and time results, clear and intuitive display;
◆ Perfect overcurrent protection, arbitrary setting of target output current value, current upper limit, and current withstand time;
◆ With grounding detection function and zero-return detection function, the test can only be conducted after grounding and zero-return are confirmed, safe and reliable;
◆ Approaching current rise algorithm, after reaching the set target output current, automatic current withstand timing starts, and the motor automatically returns to zero after timing ends;
◆ If the set output current upper limit is exceeded, the motor automatically returns to zero and an audible and visual alarm is issued;
◆ Combining hardware and software anti-interference technologies, with stable performance, strong anti-interference, and adaptability to harsh electromagnetic environments;
◆ Automatic error diagnosis, making it easy to discover and solve problems;
◆ Optional remote communication, door interlock alarm light and bell, open-circuit voltage calibration interface, etc.;
◆ On startup, it displays the company name, website, and contact number, which is beneficial for the promotion and publicity of the company brand;
◆ The product is small in size, light in weight, reasonable in structure, reliable, and durable.
Parameters:
◆ Input voltage: AC220V/380V±10% 50Hz±1
◆ Output current: 0-20kA (customizable according to customer requirements)
◆ Output capacity: 0-10kVA
◆ Current withstand timing range: 0-9999S
◆ Impact timing range: 0-999mS
◆ Ambient temperature: -20℃ to 50℃
◆ Current accuracy: ≤0.5% (F.S)
Main Technical Parameters of Three-Phase High Current Generator:
1) Input: AC 50Hz, 220V.
2) Can output balanced 0—customer-required--three-phase AC high current; smooth and continuous adjustment, accuracy higher than 0.5 level; output current is standard sine wave
3) Output current mode: true RMS continuously adjustable
4) Output waveform: standard sine wave
5) Output open-circuit voltage: ≥6V
6) Current stability: 0.2%.
7) Current waveform distortion THD 1% design standard is far higher than the national standard <
>.
8) Protection settings: overcurrent, overvoltage
9) Insulation withstand voltage 1800/AC 1MIN, insulation class: B
10) Can measure the current action time of the tested component. And can synchronously record and lock the action time. Automatically distinguish normally open and normally closed contacts. Timing range: 0.001S---9999.999 S, accuracy; 0.001S (optional).
11) The design adopts advanced microcontroller control technology, making the instrument simple and convenient to operate. The entire test process is reliable and stable, with intuitive and fast readings. The application of high-precision sensors effectively ensures the accuracy of test data. The whole machine test units include: high-precision millisecond timer, true RMS ammeter, current sensor (imported), voltage regulator, high-power current booster (imported materials), microcomputer controller, printing function (optional), etc.
12) Working environment: -10℃-----60℃
13) Weight: 50KG
Usage Method of High Current Generator:
When conducting high current tests, correctly connect the working circuit according to the circuit diagram of this product. Select the position of the large and small range switches according to the output current size. First, return the voltage regulator to zero, then press the start test button (green). At this time, hold the handle of the voltage regulator and slowly rotate the handwheel clockwise while watching the ammeter until the required current value is reached. After the test reaches the set value, immediately rotate the handwheel counterclockwise to zero, press the stop button, and cut off the power supply.
Precautions for High Current Generator:
1. The test work must be carried out by at least two people, one operating and one supervising, to ensure safety.
2. The shell must be grounded, and do not ignore the prevention of personal safety accidents because of low voltage.
3. The wire from the secondary side of the current booster to the tested object should not be too long, and the cross-section should be sufficient (current density can be considered as 6-8A/mm), and the contact surface should be cleaned (can be polished with fine sandpaper), otherwise the joint will heat up, and even the current cannot rise to the rated value.
4. Before work, check that the power supply has sufficient capacity, otherwise the power cord will heat up and the voltage will drop, affecting normal operation.
5. There should be no flammable materials at the work site. For temperature rise tests, sufficient fire extinguishing equipment should be prepared.
6. For continuous (temperature rise) tests, someone should be on duty at the site. And regularly check the heating condition of the current rise source equipment, wires, and joints, and make records. Due to the fluctuation of the grid voltage, pay attention to adjusting TD to maintain the rated test current.
7. Test work should comply with the relevant regulations of the electric power safety work regulations and formulate practical safety measures.
