1. AC Smart Dry load device Overview
Dry load box is a power load testing device developed by our company alone: simple operation, small size, easy to transport. Visual load capacity size, can use more than one parallel. Control mode is divided into manual button control. Compared with traditional water load and load resistor box, no leakage, no harmful gases and wastewater. High precision load test, adjust more easily, without having to test preparation time, continuous long-term use, and many other advantages.
According to your request system is divided into the following sections:
1, a 320KW Programmable AC resistive load, rated voltage of 380VAC.
System diagram:
Touch operation panel (in-kind):
2. Functions and Features
Superior handling
load frequency control box for the touch. The operator can easily by setting parameters on the touch screen, adjust the load capacity, the minimum step for 2KW, 2KW to maximum power segment can be adjusted to the desired test to test, thus greatly improving the work efficiency.
Flexible Scalability
system has flexible scalability, facilitate future station location, power increase, protect existing investments;
load box can be used in parallel, convenient and reliable operation;
High reliability and stability
(A) resistance tube is my company's own R & D setting temperature coefficient, low impedance resistance tube. Material selection is resistant to salt spray acid of steel pipe and stainless steel heat sink material, which can guarantee the quality and long-term work performance.
(B) the loading and unloading test accuracy ± 3%, superior to other high precision resistive load;
Fan start and security features load;
Small and lightweight flexibility
dry load device uses its own stereotypes developed resistance tube, making the load device miniaturization, the body chassis with welded profiles, making it lighter and easier to move, and occupies a small space in the smaller do the testing space.
3. The main technical parameters
Model PLB-SR320
The total discharge power 320KW; (according to 380VDC design);
Resistive load Binning (380VDC) 2KW-320KW power within any segment can be adjusted: Step: 2kw step
Test voltage rated 380VAC;
Resistance of each resistor element tube: insulation resistance 500MΩ above, pressure AC2000V 1 minute temperature;
Load characteristics resistive load;
Load power 1KW 2KW 2KW 5KW 10KW 20KW 30KW 50KW 100KW 100KW
Power capture / (optional)
Power factor NA
Load Accuracy ± 3%; (precision resistor)
Load conditions the load is resistive load, run for constant resistance mode, when the voltage is lower than the rated voltage, current, in conjunction with the decline in the proportion
Continuous work;
Power supply 220VAC / 50Hz / (reserved terminals)
Cooling Forced air cooling;
Control touch screen control
Number programmed group of 30 groups
0.1V voltage resolution
Current 0.1A resolution
0-200 ° temperature setting can be set (anti-high temperature) the setpoint machine automatically shut off
The minimum execution time 5s (switching time)
Insulation class F;
Parameter display voltage, current, temperature, power, frequency, power factor
Load protection, overvoltage, overcurrent, high temperature, low air flow and fan failure protection
Failure alarm and low wind load temperature alarm;
320KW resistive load box load box dimensions: 1000mm × 900mm × 1500mm (length × width × height); for reference only
Weight 2500KW resistive load box: ≤1000KG;
Indoor installation location;
Expansion 1 + N load container load-parallel expansion
Scope automobile generator, battery discharge, power inverters, UPS systems, etc.
RS232C communication interface selection. No PC software, providing communication protocols
4. System components
4.1. The main components
System consists of an outdoor type load box, resistors, and control data acquisition and analysis, touch screen, PLC, contactors, relays, cooling and auxiliary control of several parts.
Project Name: 40KW / 380VDC
No. Product Name Model Specification Quantity Unit Remark
A programmable AC load cabinet 320KW resistive load box: 1000mm × 900mm × 1500mm (length × width × height); for reference only a Shanghai native set
2 Industrial Touch Screen / a Schneider
3 Industrial PLC / 1 a Japanese Mitsubishi
4 Relay / number Schneider
5 switching power supply / number Schneider
6 main cable / number / Shanghai Qifan
7 AC contactor resistance binned match several sets of Shanghai Chint
8 breaker partial control of several sets of Shanghai Chint
9 resistive load 32KW / 380VAC 1 set to Mao Shanghai
10 fans 4kW / 220V / 50Hz 2 Navigation and Yan
4.2 Load box
Box with special cooling rail steel box designed to take full account ventilation, internal components and reasonable arrangement facilitates maintenance operations and other factors.
4.3. Resistor
Resistance tube made of high quality raw materials, the use of advanced science and technology, resistance tube with acid resistant to salt spray corrosion effect, good insulation properties, high thermal performance, stability, long life and other technical features, rainy days in a row can use.
Each resistor element: Insulation Resistance DC500V 100MΩ more pressure AC2000V 1 minute resistance error of each resistor tube: ± 3%, the operating temperature is 1/3 of the design temperature, long working hours without red hot. Three-year life of commitment to quality.
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