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Photovoltaic isolation power distribution cabinet

Product description
The photovoltaic isolation transformer uses low-loss materials and has high output conversion efficiency. The product has high load capacity, anti-interference, fireproof, moisture-proof, safe and reliable, energy saving and convenient maintenance. It has the function of isolating power supply in photoelectric conversion and can work normally in outdoor high temperature environment for a long time. Solar energy has attracted more and more attention because of its advantages of no pollution, no noise, and wide distribution. At present, most of the photovoltaic grid-connected power generation systems contain isolation transformers, and there is a problem of leakage current in the photovoltaic power generation system without isolation transformers.

Features
(1) Electrical isolation: The use of transformers to achieve electrical isolation between the photovoltaic power supply and the grid.
(2) Preventing the DC component of the current from being injected into the grid: Since the DC current does not cause a change in the magnetic flux, the DC component of the PV inverter system will not flow into the grid through the isolation transformer.
(3) Anti-interference effect: The isolation transformer with certain connection mode can eliminate the integer multiple harmonics of 3 times and 3, and reduce the influence of higher harmonics and voltage fluctuation on the power grid.
(4) The role of the stable voltage: When the system fails, the resonant overvoltage and the steady-state overvoltage of the photovoltaic inverter system can be effectively suppressed.



Technical Parameters
Photovoltaic isolation transformer technical parameters
  Project Standard value Condition
1 Capacity 0.5KVA-2000KVA  
2 Voltage range <1000V  
3 Insulation resistance >100MΩ DC1000V
4 Dielectric strength <20mA AC3.0KV 60S
5 Effectiveness ≥98% Full load
6 Noise ≤65dB 1m from the transformer
7 Temperature rise ≤100K Full load
8 Insulation class H class(180℃)  
9 Connection method Dyn11  
10 Short circuit impedance 4%  
11 Ambient temperature -40℃~50℃  
12 Design standards GBT10228  
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Shenzhen HaiKe transformer Co., Ltd Copyright © 2019 【Admin
Add: Bao'an District of Shenzhen City Songgang town Kawagoe Wah Yan Dong Industrial Park K5
Tel: 86-755-27133533
Sales Phone: 13691656577 Du (Manager)
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