Product Description
The power of the pitch control system is from the nacelle control cabinet of the main control system, in the event of voltage drop or grid failure, the backup power cabinet supplies the hub control cabinet to move the blade to the safety position.
Key features:
The backup power supply for the AC pitch system consists of supercapacitors which meet the following requirements:
- The capacity of the supercapacitor cabinet module satisfies the requirement to complete at least 5 times emergency pitch under the specified load
- The capacitor module consists of capacitors connected in series and parallel, with a voltage equalization circuit between each capacitor monomer to ensure that the capacitors are not overcharged
- A pressure relief valve is installed (capacitor over-voltage or reverse polarity will cause an increase in pressure inside the capacitor)
- The supercapacitor module has voltage, temperature and other protection signals, which can be connected to the control circuit of the pitch system to monitor the status of the capacitor module in real time. In case of abnormalities the capacitor charger is disconnected and the corresponding fault is reported. The Pitch system has the ability to detect capacitor cabinet temperature, capacitor charging open circuit, capacitor overvoltage and voltage imbalance, charger fault, etc
- The charging time for the supercapacitor is less than 10 min after a complete pitch process with the rated load
- The supercapacitor modules in each pitch cabinet are selected and assembled according to the gear position, and the error of the monomer capacity in each gear position shall not exceed exceed 10F
Product Parameters
| Technical parameters |
| Rated voltage |
450VDC |
| Capacitor |
Customized to requirements |
| Rated current |
63A |
| Life |
20 years |
| Working temperature |
-30ºC~+55ºC |
| Relative air humidity |
≤95%,no condensation |
| Altitude |
≤2000m |
| Storage and transport temperature |
-40ºC~+70ºC |
| environment |
Suitable for use in cold, salt spray, sand, lightning and freezing areas |
| Degree of protection |
IP54 |
| Corrosion protection |
C3/C4/C5 |
| Material |
Q235/SUS304/SUS316 |
| Suitable for Wind turbine size |
1.5MW to16MW |
Scope of application:
Detailed Photos
Application Case
1.Digital design
2.Harness processing center (synchronized with digital prototype data)
3.Intelligent workshop
5.Digital operation and maintenance system
Certifications
Type test certifications.
FAQ
Q: How do you handle shipments?
A: 1. For small orders, we send goods by FedEx, DHL, UPS, express service on door to door term.
2. For large shipments, we send goods by sea or by air in containers.
Ps. it's highly recommended to delegate your own forwarders to handle shipments and FOB Shenzhen is widely adopted by our customers.
Q: What is your delivery time?
A: Normally, we need about 30 days to prepare your goods. For orders in large quantities and customized orders, the time for shipment will be a little longer.
Q: What is your term of payment?
A: Our standard term is 100% TT advance with order. However, it is negotiable under the condition of long-term strategic cooperation.
Q: What is your customized service?
A: With abundant experience in various kinds of OEM and ODM projects, we provide flexible and professional customized service. The MOQ varies based on your customized requirements.
Q: How long is the warranty?
A: The warranty of our products is 24 months upon the receipt of your shipment under normal circumstances.
Q: What is your guarantee of after-sale service?
A: In response to every single after-sale request within the warranty, we will appoint a one-on-one technician for timely online aid.
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