China's fastest growing factory best quality GZDW Series DC Power Supply power board

Service environment

 Ambient temperature:

Maximum +40°C
Maximum 24 hour average +35°C
Minimum (according to minus 15 indoor classes) -10°C

Ambient humidity:

Daily average relative humidity less than 95%
Monthly average relative humidity less than 90%
Height above sea level at site less than 2000m
Earthquake intensity less than 8 degree

This product should not be used under conditions of fire, explosion, earthquake and chemical corrosion environments.

  Type designation

Feature

Intelligent dual-power switching: There is double AC power input way for the panel. One is the way for working power; another is the way for standby power. When the power fails, the system automatically switches to standby power.
Automatic voltage converter: The panel automatically converts voltage value according to voltage of closing bus-bar. The panel uses a pressure relief device-level or pressure relief device. This work is stable and reliable.
Multi-protection design: The panel has surge protectors which prevent over-voltage of the power supply. There are overvoltage protection, current limiting protection, short- circuit protection, module parallel protection, over-temperature protection and over-current protection system as a whole can improve the safe and reliable operation.

N +1 redundancy design: The charging module has N + 1 to improve reliability, the charging module has self cooling, supports live hot plugging-in and pulling, is easy to maintain.
Centralized Monitoring Function: Coordinate with the central monitoring or control of the DC power supply components and operating parameters of the role of the state, at the same time concentrate on each module Parameters upward crew transmission, PC and transmitted under the order. Use of the structural design of building blocks, can lose control Level. All AC voltage, current, spare each other automatically switching; coordination or control supply bus-bar of current, voltage parameters. Battery voltage parameters, battery charge and discharge current parameters; system insulation parameters; reclosing switch monitoring, control switches, batteries Melting Off work for the state of insulation fed a control loop (optional); Patrol battery (optional), monitor the environment temperature.

 Technical specification

Rated input voltage: AC380~415V
Range of input voltage: AC323~475V
Frequency: 50Hz ± 10%
Power factor: 0.92
Rated output voltage: DC110V or DC220V
Range of output voltage: DC99~143V (DC110V), DC198~286V (DC220V)
Rated output current: 10A~240A (DC, N+1)
Equalizing coefficient: ≤ 5%
Voltage stabilizing accuracy: ≤ 0.5%
Current stabilizing accuracy: ≤ 1%
Ripple coefficient: ≤ 0.5%
Efficiency: ≥94%
Noise: ≤50db (1m away from the panel)

Structural drawing

Diagram

Picture show

Our promises

Quality assurance:All the products will go through the detailed quality inspection during production.

Manufactuer's price:Factory direct sale,competitive price.

1. Your inquiry related to our products or prices will be replied within 24 hours.

2. Well-trained and experienced staffs to answer all your enquires in fluent English.

3. OEM & ODM projects are highly welcomed. We have strong R&D team here to help.

4. Good after-sale service offered, please get back if you got question.

5. Protection of your sales area, design drawing and all your private information.

 FAQ

1. How to order the products?

Answer:Send the inquiry with detail item descrpition or with Model number.If there is no packing demand we take it as sea-way packing.

If possible please attach one reference picture to avoid any misunderstanding or any links from our website for we get a  better understanding.

2. About lead time and shipping time?Answer : The lead time depend on quantity of order. Usually shipped by sea, small order or urgent order we can send you by air after received your agreement.

3.Can I expect a quality products?Answer : Yes. All our activities are accredited to ISO 9001:2008 ,both in products and services, at the same time, mature production technology ensuring the quality satisfy international request.

Our story with customers

In 2005,we received the email from ALIBABA that a Russian customer would like to order the KYN28-12 indoor metal-clad enclosed switcgear.We confirm the product parameters and pictures carefully again and again with the client,the last communication is the most difficult in price,it is a psychological warfare,customers began to demand a 20% cut,we insist on our price,emphasis on the various advantages of our products with the high quality. After compared with other factory,Russia customer finally chose to coperation with our company.After more than 20 days,customers sent a email to tell us that they are very satisified with the goods. At the same time,he praised our good service attitude,delivery on time,good quality,until now the Russia client has been our long-term customer,also is our good friend.

 LOVE  IN THE WORLD

 In a Poor Village, Innocent Children no Education, no Happiness and no Hope.

However, CHANGKAI/SINOAMIGO Brings new Future and Love There.
After That, Sunshine Smile and Love is Always around Children.
They See Hope for Everything and Know Love in the world.

CHANGKAI/SINOAMIGO Brings Brightness, Warmness and Hope. 

Let Children Know LOVE IN THE WORLD!!!