Shaanxi Changling Photovoltaic Electric Co., Ltd.
Main products:On-grid inverter,Off-grid inverter,Distribution Cabinet
Products
Contact Us
  • Contact Person : Ms. Xu April
  • Company Name : Shaanxi Changling Photovoltaic Electric Co., Ltd.
  • Tel : 86-917-3607663
  • Fax : 86-917-3607650
  • Address : Shaanxi,Baoji,No. 75 Qingjiang Road
  • Country/Region : China
  • Zip : 721006

Inverter Power 500kW

Inverter Power 500kW
Product Detailed
Inverter: 1 Max.conversion efficiency of 98.6%; 2 Using an accurate MPPT technology; 3 Key parts are exported.

NB500K ON-grid Inverter

Features:

The control microprocessor built in NB500k inverter is the latest world famous brand 32-bit DSP chip, which is suitable for floating point arithmetic and has a better open and close loop control in the inverting process due to the advantages of lower self consumption, faster calculation and more accurate sampling. The IGBT selected is the latest Infineon product that will further improve the efficiency and stability because it is more stable and has lower switching loss. In control arithmetic, comprehensive applications of space vector PWM technology, optimal efficient data process method, fuzzy PI control theory and humanized design thought have ensured the product features of high quality, stability, reliability and affinity.

Advantages:   

1  The power unit is well designed with heat flow simulation, which has a better thermo-stability than traditional one. The controlled air cooling and efficient air flue design has not only effectively reduced the energy loss but also decreased the self loss of inverter, therefore to extend the `lifetime of power unit.

2  The well proven voltage loop and current loop control technology, which is critical to high efficiency conversion, has maximally drawn energy from the polar PV module with the pre-transformer efficiency  reaching 98.6%.

3  Thin-film capacitor, which has longer life time that electrolytic one and no leakage trouble, is designed in the system to inhibit flicker voltage and ripple current, so as to ensure a better reliability and stability of the system.

4  The driven signal of power module is transferred by optical-fiber, which will effectively reduce electromagnetic interference in the power conversion so as to increase system stability.

5  Perfect active and passive solution of “island detection” has been used, which is significant to protect the safety of maintenance people and equipment. 

6  Perfect protection solution of circuit breaker and contactor designed at both AD and DC side for emergency case.

7  With optimally selected components, the system can work in different environment conditions. It has the ability of high altitude and low temperature start. The assistant heating function is optional. 

8  It has a friendly human-machine interface and touch screen operation display. It built with different optional communication interfaces. With abundant statistic data, it is able to simultaneously remote measure and control several inverters equipped with the “plant monitoring” software.

9  Modular design, easy for daily maintenance and management.

No.

Technical Parameters

Indexes

 

Parameters for DC side

 

1

Max.DC voltage

900V

2

MPPT voltage range

450~820V

3

Max.DC power

550kWp

4

Max.input current

1250A

5

Max.input channels

16

 

Parameters for AC side

 

6

Rated output power

500kW

7

Rated grid voltage

400V(including transformer)/270V(no transformer)

8

Grid voltage

310~450Vac (including transformer) ()/210~300V( no transformer)

9

Rated grid frequency

50/60Hz

10

Grid frequency

47~51.5Hz/57~61.5Hz

11

Waveform distortion rate of total current

3%

12

Power factor

≥0.99

 

System

 

13

Max.efficiency

97.4%( including transformer)/98.6%( no transformer)

14

European efficiency

96.8%( including transformer)/98.4%( no transformer)

15

Protection grade

IP20

16

Power consumption at night

100W

17

Environment Temp.

-25 ~ +55°C

18

Cooling method

Controllable wind cooling

19

Relative humidity

0~95%,No condensing

20

Noise

Below 85 dB

21

Altitude height

Max. altitude height of 1000ms

22

DC separation system

Breaker

23

AC separation system

Breaker, contactor

 

Display and Communication

 

24

Display

LCD Touch screen

25

Standard communication method

RS485/CAN/Ethernet

 

Dimensions

 

26

W H D

2800  2200  850 

27

Gross height

1650kg

Inverter Power 500kW



Copyright Notice @ 2008-2012 ECVERY Limited and/or its subsidiaries and licensors. All rights reserved.