NAWDS high current temperature rise test device (specific current value can be determined according to customer needs), NAWDS Large Primary Current Injection Test System
Also called name
Temperature rise test, circuit breaker current temperature rise test, temperature rise high current generator, temperature rise test current, high current temperature rise test equipment, switch cabinet temperature rise test, generator temperature rise test, high current temperature rise, temperature rise Current experiment equipment, NAWDS high current temperature rise test device, NAWDS Large Primary Current Injection Test System
Function introduction
The NAWDS high-current temperature rise test device is a special device mainly used for bus load, switch, switchgear and other electrical equipment for current load test and temperature rise test.
Main Features
1. Built-in high-configuration industrial computer, using programmable controller Siemens S730PLC as the central processor, real-time scanning of AC signals, zero monitoring and closed-loop control, and designing password setting management, only those who have the corresponding operation authority can carry out The operation of certain features.
2. Imported PC 15 inch true color LCD touch industrial tablet operation, using intelligent sensors supporting fieldbus technology, realize full digitalization of data transmission, display operation unit selects touch color LCD display, full Chinese menu, The interface is clear and intuitive, and the operation is simple and convenient. The test does not require any external auxiliary equipment, fully automatic control, fool-like operation, fast, simple and convenient.
3. The test method of this instrument has two methods: automatic test and manual test. It only needs to set simple test current and time. With automatic steady flow system, equipped with 4 USB ports, easy U disk, printer and other equipment. It can be operated directly through the mouse interface. Provide RS232 and RS485 two communication interface options, can be connected with the background computer, can communicate directly with the computer PC through the RS232 interface, can print the curve, provide computer communication software; realize data analysis and temperature curve printing.
4. Just set the target current, no need to manually detect, only need to set the test, current and step size, eliminating the need for manual pressure regulation, manual recording, drawing curves and other cumbersome labor, reducing labor intensity and improving work efficiency. After the work is finished, read the data to the computer and check it.
5. There is an automatic alarm function that exceeds the limit value and has reliable self-protection functions of overheating, overcurrent, overvoltage and short circuit. The protection of the AC voltage regulator should be protected by the microcomputer automatic protection control and the mechanical micro-motion limit switch to ensure the normal operation of the constant current power supply and improve the safety and reliability of the product.
6. User-friendly interface, friendly software interface, full Chinese and English operation interface, control software with data recording, and can store current and temperature waveforms, data management, report, printing and other practical functions; parameter setting. In software carry out. More intuitive analysis of current and temperature values. Make all the data and test analysis results clear at a glance. During the test, the target current is automatically tracked, the output current is automatically stabilized, and the three-phase current is automatically adjusted; after the test is completed, it automatically returns to the zero position.
7. Automatically adjust the AC constant current source to meet the temperature rise test of the GB 7251.1~ GB 7251.5 standard medium and low voltage switchgear (control cabinets with multiple output such as GCK, MNS, etc.), and automatically adjust the AC constant current source to be able to rise in temperature. In the test, multiple constant current power sources are operated in parallel (a copy of the confirmed materials, such as GCK or MNS, should be provided for the user to use multiple constant current sources).
8. With three-phase automatic balance system to ensure three-phase balanced output, the output current sampling adopts imported sensor and adopts the current 0 new power electronic technology, with strong anti-interference ability, high output precision, and 0 high up to 0.2 level.
9. With the precision adjustment menu, the user can adjust the error value by himself. The program-controlled AC constant current power supply can realize full intelligent correction, and automatically generate multi-segment correction coefficients within the adjustable range of the device to ensure steady current accuracy of the constant current power supply.
10. It can display three-phase full current curve and up to 120 temperature profiles. With a micro printer, you can print graphs and test data on the spot.
11. The test report is a Word format document that can be edited, organized, and printed inside the instrument.
12. The test module can be customized according to user requirements, and the software can be upgraded free of charge for life.
Main technical parameters
Equipment model: NAWDS
Maximum output current: single-phase AC 100A~6000A; total 3 groups
Circuit mode: electric column regulator
AC input
Phase line: 3Φ4W+G
Voltage: 380V±10%, 50Hz±2% three-phase four-wire
Input current: 9.99A~599A
AC Output
Circuit phase line: 1Φ2W+G
Open circuit voltage: 0-12V automatic switching
Current: AC 0-6000A continuously adjustable; test accuracy: 0.5
Steady flow accuracy: output current ≤ ± 0.2%
Output terminal: terminal block
Circuit protection: Electronic circuits quickly detect overvoltage, overcurrent, over-temperature automatic trip protection and alarm devices. The non-test state voltage is zero and the current is zero.
Display and setting
Voltmeter display: digital voltmeter, resolution 0.1V
Ammeter display: digital ammeter, resolution 1A
Adjustment setting: current (adjusted with high precision potentiometer)
Total machine system
Machine efficiency: greater than 90%
Withstand voltage insulation resistance: AC1800V, time: 1 minute, 20 megohms
Cooling device: natural wind cooling
Noise: <60dB (1mm in front of the machine)
Transformer accuracy: 0.2S level
Protection level: IP20
Working environment
Temperature: -10 °C ~ 50°C
Humidity: 0-90% (non-condensing state)
Altitude: 1500 meters or less.
Power supply: AC110V/115V/120V/127V/220V/230V/240V optional
Input frequency: 50Hz/60Hz optional
Note: The users can select the corresponding power which based on their local supply voltage and frequency, and we will confirm it before the delivery (or inform us that the goods will be used in which country advance).