Nancal low voltage Industry AC drives in Ningxia tire factory
1-The end user’s problem before renovation.
The end user use a world famous brand low voltage AC drive for many years. In the production process, with the increase of the service life of the drive, the failure rate is increasing year by year. The failure rate is as high as 4-5 times/year. Each failure will cause a long shutdown.
The only way to solve the problem is contacting the manufacturer to deal with the sudden fault.
The confusion faced by the user is mainly as follows:
The procurement cycle of the necessary spare parts is very long, meanwhile the cost is very expensive, which cannot meet the actual production requirements of the factory.
Seeking for maintenance also face the following problems:
A. High maintenance costs including additional expenses such as spare parts maintenance and personnel travel expenses.
B. Timeliness of maintenance and procurement of parts cannot be guaranteed. Sometimes it may take a week or more for repairs to be completed.
C. The warranty period of the product after maintenance is as long as 3 months only.
Loading & existing drive modules
2-Nancal’s solution
3-On-site photos
| Item | Loading | Voltage/Power | Rectifier & inverter module in each drive
|
Qty. |
| 1 | Extruder | 400V/630kW | Diode rectifier module (400v/571A*2)
IGBT inverter module
(400v/656A*2)
|
2 |
| 2 | Extruder | 400V/710kW | Diode rectifier module (400v/571A*2)
IGBT inverter module
(400v/741A*2)
|
2 |
2-Nancal’s solution
In order to save the end user’s cost and time, Nancal suggest to choose 2* NANCAL NCS800-104-0510-3（400V/750A）IGBT inverter module to take place of the existing 656A & 741A modules.
Nancal’s NCS800 series have extensive compatibility and substitutability to different models of this world famous brand. Seamless upgrade and replacement can be achieved.
The NCS800 series of modules have the same appearance size and interface with the imported brand (including software parameters, I/O interface and upper computer communication), and can be directly driven by the original control unit.
The original cabinet does not make any changes in the transformed process, the whole process is within 60 minutes, which minimizes the enterprise's maintenance costs.
Advantages of Nancal NCS800 modules
The same model can replace two different existing models, which simplifies the maintenance and procurement workload.
NCS800 is a series of products independently developed by Shanghai Nancal Electric Co., Ltd. The supply is sufficient, which solves the concerns of the end user for long-term purchase of spare parts.
The renovation cost is much lower than the purchase of imported spare parts.
The warranty period of the inverter module is extended after the replacement, and the use of the new inverter module extends the life cycle of the whole drive for more than 10 years.
The system is stable and reliable with low fault rate
3-On-site photos
1) Cold feed extruder working site
2) Remove the old modules
3) Install Nancal NCS800
4) Finished replacement
5) Nancal NCS800 work with load
3) Install Nancal NCS800 4) Finished replacement5) Nancal NCS800 work with load
