QC PROFILE
Dongguan Qingfeng Heat Dissipation Technology Co.,Ltd keep following ISO9001 standard to manager and supervise quality. All our products have passed CE certification and other technical approval.
| Table 1.overvoltage and undervoltage check,output voltage imbalance. |
| No |
Model |
Input voltage/hz |
Output current |
Actual output voltage |
Remark |
| U-W |
U-V |
V-W |
| 1 |
VFD500 45KW |
403.7/25 |
27.2 |
203 |
203 |
203 |
|
|
| 402.3/50 |
27.9 |
385 |
385 |
385 |
|
|
| 2 |
VFD500 55KW |
403.7/25 |
27.3 |
206 |
205 |
205 |
|
|
| 401.3/50 |
28.9 |
388 |
388 |
388 |
|
|
| 3 |
VFD500 75KW |
402.1/25 |
27.8 |
207 |
207 |
207 |
|
|
| 401.4/50 |
391 |
391 |
391 |
391 |
|
|
| 4 |
VFD500 90KW |
402.8/25 |
27.7 |
206 |
206 |
206 |
|
|
| 402.7/50 |
29.5 |
391 |
391 |
391 |
|
|
| 5 |
VFD500 110KW |
402.9/25 |
27.1 |
206 |
205 |
205 |
|
|
| 402.7/50 |
28.8 |
389 |
389 |
389 |
|
|
| 6 |
VFD500 132KW |
402.7/25 |
26.6 |
204.7 |
204 |
204 |
|
|
| 402.7/50 |
29.5 |
387 |
387 |
387 |
|
|
| Table 2.Checking the accurcy of the inverter ammeter readings adn current imbalance. |
| MODEL |
Clamb current |
Average |
Current on dispaly |
The difference between the clamp meter and the
meter on the device(automatically calculated)
|
Remark |
| U |
V |
W |
| VFD500 45KW |
94 |
94 |
94 |
94.00 |
96 |
2.13 |
|
|
| VFD500 55KW |
105 |
105 |
104 |
104.67 |
108 |
3.18 |
|
|
| VFD500 75KW |
118 |
118 |
118 |
118.00 |
122 |
3.39 |
|
|
| VFD500 90KW |
122 |
122 |
122 |
122.00 |
124 |
1.64 |
|
|
| VFD500 110KW |
126 |
126 |
126 |
126.00 |
128 |
1.59 |
|
|
| VFD500 132KW |
135 |
135 |
135 |
135.00 |
140 |
3.70 |
|
|
| Table 3.Checking overload protection. |
| Power adn voltage |
Overload,% and actuation time |
Remark |
| 120(60)120% overload,the load must be disconnected within 60 seconds |
145(10) |
160(1) |
|
| Protection operation time,t s / A overload |
| Model |
/ |
/ |
/ |
|
|
|
| VFD500 45KW |
55 |
5 |
0 |
|
|
|
| VFD500 55KW |
56 |
7 |
0 |
|
|
|
| VFD500 75KW |
55 |
9 |
0 |
|
|
|
| VFD500 90KW |
55 |
6 |
0 |
|
|
|
| VFD500 110KW |
55 |
5 |
0 |
|
|
|
| VFD500 132KW |
58 |
6 |
0 |
|
|
|
