High voltage DC load
Product Introduction:
High voltage DC load, requiring a wide input voltage range (350V-4000V); Can work under high voltage for a long time; At the same time, there are comprehensive overvoltage, undervoltage, and short-circuit protections, and fault signals are emitted in the form of optical signals.
(1) Load testing: It can load any power within the rated value, measure and display parameters such as the measured DC power supply voltage, current, and power.
(2) Control mode selection: The load can be controlled manually or intelligently.
(3) Manual control: The load is equipped with a local control panel and divided into several power levels, which can be controlled by switches for loading.
(4) Intelligent control: Control the load through data management software on the computer, achieve all testing functions, display, record and manage test data, generate various curves, charts, test reports, and support printing.
(5) Control mode interlock: The system is equipped with a control mode selection switch. After selecting any control mode, operations performed through other modes are invalid, avoiding conflicts caused by multiple operations.
(6) One click loading and unloading: Regardless of whether manual switch or software control is used, the power value can be set first, and then the main loading switch can be activated. Only then will the load be loaded according to the preset value, thus avoiding load fluctuations during power adjustment.
(7) Local display data: Voltage, current, power and other parameters can be displayed through local measurement.
(8) Load box temperature detection function: The local temperature measuring instrument can display the temperature of the air outlet inside the load power consumption component compartment and the temperature of the load box control room.
(9) Control unit preheating protection: The load cabinet is designed with a temperature and humidity detection device. When the equipment detects high or low environmental humidity or temperature, it will automatically dehumidify/heat to ensure that the control device environment in the equipment remains dry.
(10) Auxiliary function: The load cabinet control panel is designed with lighting switches and reserved AC220V/50Hz power sockets for computers or other temporary power consumption.
(11) Dual voltage test circuit conversion: Select the test voltage of the load cabinet through the local control panel selection switch or the upper computer control software, and adjust the series connection form of the internal circuit of the load cabinet.
(1) Communication method: Intelligent control uses an RS485 communication serial port with optoelectronic isolation to connect to a PC, which has strong anti-interference ability and ensures the stability of system control. Various communication protocols can also be converted through converters, using USB or RS232 ports for communication.
(2) Loading methods: manual loading, automatic loading.
(3) Manual loading: Input power and power factor, i.e. load according to specified values.
(4) Auto loading: During testing, the power and duration of multiple loading stages can be set to automatically perform stage testing. During the loading process, it can pause at any time or jump to the next stage.
(5) Parallel testing: When multiple loads are parallel, the software can perform parallel testing, which can display and record the parameters of each load, as well as the total system parameters after parallel testing.
(6) Real time parameters: During the testing process, the main parameters such as voltage, current, power, and time can be displayed in real time through software.
(7) Security monitoring: The load status can be visually monitored through software indicator lights, and the reason for shutdown will be prompted when there is abnormal shutdown protection.
(8) Data collection interval: The minimum resolution time for steady-state data is 1 second.
(9) Data saving and querying: Test data can be saved in the software and historical test data can be quickly queried based on the generator set number.
(10) Graphic display: It can display real-time or historical test data and support printing as the following curves and graphics:
1) Real time voltage, current, and power curves; 2) Voltage curve chart; 3) Current curve diagram; 4) Power curve diagram;
(11) Data format: Charts and curves are output in Word document format, detection reports are output in Excel spreadsheet format, and printing is supported.
Protection function
(1) Emergency stop: It can be manually unloaded with one click, and cannot be loaded when the emergency stop is locked.
(2) Short circuit protection: The load circuit is equipped with a fuse, which can prevent damage to the equipment when the load is short circuited or the current is too high.
(3) Overvoltage protection: When the input voltage of the load exceeds the safe threshold, it will automatically unload and sound an alarm.
(4) Temperature protection: When the load temperature exceeds the safe threshold, it will automatically unload and sound an alarm.
(5) Fan interlock protection: The load cannot be loaded until the fan power switch is turned on.
(6) Fan air volume protection: When the air volume of any fan is insufficient, it will automatically unload and sound an alarm.
(7) Fan phase sequence automatic conversion protection: When the control power line is not connected in the correct phase sequence, the three-phase fan can still operate in the normal direction.
(8) Control room door status alarm: When remote or intelligent operation is performed, if the operation room door is not closed during the loading test, the corresponding warning light will be on, and the host will beep and unable to load.
(9) Air outlet door status alarm: During power on testing, if the air outlet cover of the chassis is not opened, the corresponding warning light will light up and the host will beep.
(10) Maintenance room door status alarm: When the chassis maintenance room door is open and the load cannot be loaded for testing, the corresponding warning light will turn on and the host will beep.
(11) Protection switch: Some protection functions are equipped with switches, which can temporarily turn off the corresponding protection functions when there is a false alarm or special need.
(12) Chassis grounding protection: In order to prevent the chassis from being electrified and posing a risk of electric shock during load operation, the load cabinet is equipped with dedicated grounding protection terminals.
Ordering Notice:
We are willing to serve you with our professionalism, sincerity, and integrity.
