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NJZ FLB High Bay High Temperature Testing

From: www.njzlighting.com May 05, 2017
High bay working in high temperature environment no longer be a problem, NJZ do it! 
 
1. Previous Experiments Review


1st 2017-3-30
Experiment Driver: HLG-240H-54B
Driver Installation: Back of fixture
 
2nd 2017-3-31
Experiment Driver: HLG-240H-54B
Two extra NJZ standard heat sink
Driver Installation: Back of fixture
 
3rd 2017-4-1
Experiment Driver: HLG-240H-54A
Driver Installation: separated from fixture with heat sink
 

4th 2017-4-9
Experiment Driver: HLG-320H-54A
New larger heat sink
Driver Installation: separated from fixture with heat sink
 
 
5th 2017-4-20
Experiment Driver: HLG-320H-54A
Drivers were fixed on bracket
Driver Installation: separated from fixture with heat sink (Suspended)
 
6th 2017-4-28
Experiment Driver: HLG-320H-54A
Voltage: 480V AC
Drivers were fixed on bracket
Driver Installation: separated from fixture with heat sink (Suspended)

2. Purpose

Driver was fixed on two sides of fixture, then test and collect driver's temperature data, which providing reference for final scheme of installation of driver.


3. Preparation  

 
4. Key point dimension


5. Procedure

Step1:Adjust output current for driver HVG-320-54A: 3.4A(CV=51V)
Step2:Connect booster and IT7322
Step3:Put the fixture into High-low temperature laboratory, preheating 1H
Step4:Adjust IT7322 to AC240V, connect with fixture, make sure input voltage of HVG is : 480±1V
Step5:Real-time monitor temperature rise of critical component until stable
Step6:Close cycle wind system, and real-time monitor temperature rise of critical component until stable.

6. Testing data

Data analysis

 
1. High-low temperature laboratory realize thermal equilibrium after about 3.5H
with cycle wind off.
2. Under thermal equilibrium, difference between TC of LED driver and TA is
about 10°C

7. Data analysis

Improvement:
1:HLG-320H-54A →HVG-320-54A
2:Input Voltage 220V AC→ 480V AC
                                       



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