The Energy Saving Device for Elevators

• 

○ National key product in new plan Reported by CCTV repeatedly
○ ¥20 million guarantee byMin an insurance
○ Integrate Save electricity 30%
○ Used in the ministry of science and technology, the general hospital of China PLAand other more than 1000 energy saving program in countrywide


If we can apply the energy saving device to every elevator, we will save 11.4billionkWhs energy, just like saving 3,800,000 ton standard coal, reduce 9,950,000 toncarbon dioxide, 32000 ton sulfur dioxide and 28,000 ton nitric oxide gas waste.

SYSTEM FEATURES
1.We adopt PWM technology to output correct phase, and restrain higher harmoniceffectively.
2.We adopt DSP CPU, which has high speed, precision, stability and anti-jamming
ability.
3.We adopt self-diagnostic techniques to ensure the accurate of output voltage, andin case of current post back, to make the frequency convertor out of influence.
4.Voltage distortion: <5%, fit the harmonic requirements of IEC61000-3-2 and GB/T14549.
5.It can be used in network connection with AC150~460Vdirectly through a reactor orfilter. Electricity saving will be obvious in frequent braking situation.
6.Energy conversion rate can reach above 97%.
7.Empty load up can save 35% and Full load down can save 45%.
8.Indicate the numbers of pitch point according real time.
9.Twin channel protect installed internally.
10.Building block design, support power extending.
11.Support data teletransmission.

ADVANTAGES
1. It realized the four quadrant operation of frequency converter system.
2. Braking energy was recycled, increase the efficiency of system greatly.The
facilities for reduce temperatures in elevator machine room can be closed.
3. The heat productivity of system is reduced , and improved the safety and comfortableness, also decrease the amount of work.
4. Improving brake effect, adapt the requirements of prompt and frequent braking
action.



PARAMETER INDEX
? Power range: 0~30kw
? Brake mode: Bi-directional auto voltage tracking mode
? Response time: below 2ms, has several algorithm of noise filter
? Allowed network voltage: AC150~460,45~66Hz
? Movement voltage: DC270~780V(adjustable), deviation 2V
? Brake moment: less than 150%
? Feedback way: sine-wave current system.
? Current distortion: <5%
? Design working ways: long-time
? Defensive function: overheating, over current, self-diagnosis of break down and output
protect function.
? Dimension: 300mm×230mm×167mm
? Extending function: can provide 485 connector.


Environmentrequirement:

Foreign body forbidden, surrounding temperature should be -10°~+60°C, metal dust
and corrosive gas forbidden, relative humidity is less than 90%RH(non-condensate),
shake 1G/10-20Hz.0.2G/20-50Hz

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