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Congratulations to our company's PFU elevator feedback emergency device successfully passed the inspection of the National Elevator Quality Supervision and Testing Center
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Congratulations to our company's PFU elevator feedback emergency device successfully passed the inspection of the National Elevator Quality Supervision and Testing Center

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  • Time of issue:2019-06-25
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Congratulations to our company's PFU elevator feedback emergency device successfully passed the inspection of the National Elevator Quality Supervision and Testing Center

 

Congratulations to our company's PFU elevator feedback emergency device for successfully passing the test of the National Elevator Quality Supervision and Inspection Center, and all the test items are qualified.

The National Elevator Quality Supervision and Inspection Center is a national-level product quality supervision and inspection agency authorized by the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China. Undertake the tasks of national supervision and spot check, evaluation and certification, arbitration inspection, manufacturing license type test, appraisal review and customer's entrusted inspection of elevator product quality.

 

 

The test locations were carried out in our product inspection workshop and the elevator test tower of Guangdong Aoling Elevator Co., Ltd.

 
 

Our engineers and the testers of the National Elevator Quality Supervision and Inspection Center clarify and verify the test rules one by one

 

Our engineers are conducting laboratory on-site testing of the PFU elevator feedback emergency device

 

Test engineers from both parties arrive at the elevator test tower of Guangdong Aoling Elevator Co., Ltd.

 

 

Our engineers communicate with the testers of the National Elevator Quality Supervision and Inspection Center at the elevator test tower site

 

NEW

PFU elevator feedback emergency device

 

Features

 

(1) It has all the functions of elevator emergency power supply;

 

 (2) The recovery efficiency of regenerative electric energy is as high as 97.5%, the energy-saving effect is remarkable, and the comprehensive power-saving efficiency reaches 20-50%;

 

 (3) Built-in reactor and noise filter can be directly connected to the grid without causing interference to the grid and surrounding electrical equipment;

 

 (4) Special battery management, so that the battery life can reach more than three times that of peers (other elevator emergency power equipment);

 

 (5) Adopt a variety of original technologies, compatible with all brands of elevator inverters;

 

 (6) When the power supply of the power grid is interrupted, the PFU ensures that the elevator stops nearby or returns to the first floor and opens the door. When the power supply of the power grid is normal, it is an energy regeneration feedback device, and the economic benefits generated during the life of the equipment far exceed the equipment’s cost of investment;

 

  

 (7) Electromagnetic isolation technology is used to isolate the battery from the three-phase electricity to ensure the safety of the battery and the inverter;

 (8) Adopt high-speed DSP central processing unit

   Upgrade a new generation of feedback control software, accurate control accuracy, good stability, less harmonics, and strong anti-interference ability;

 (9) Adopt the latest SVPWM modulation technology in the industry

  Upgrade a new generation of SVPWM vector control technology to meet all the requirements of the national standard for elevator energy feedback on current harmonics;

 (10) Meet the national standard of elevator energy feedback device

   Upgrade a new generation of control software and hardware, pass GB/T 32271-2015 "Elevator Energy Feedback Device" and TSG T7007-2016 "Elevator Type Test Rules" test, report number: WT NET 19-155;

 (11) Standard RS485 communication and feedback power display

  The product is equipped with RS485 communication and keyboard communication display as standard, and all software control parameters are open for display and debugging, which is convenient for product monitoring;

  (12) Prevent islanding effect

  The software monitors the status of the power grid in real time, and the power outage of the power grid will immediately stop the power feedback to the grid to prevent the islanding effect;

  (13) Using LC filter technology

   Optimized LC filtering, effectively suppressing harmonics and electromagnetic interference, voltage and current THD<5%, to ensure clean energy feedback;

  (14) Using automatic phase sequence discrimination technology

  Upgrade the automatic phase sequence identification technology, the phase sequence of the three-phase power grid can be connected at will, no need to distinguish the phase sequence artificially;

  (15) Upgrade the hardware design to exceed the requirements of the national standards for withstand voltage

  The newly upgraded hardware design meets the withstand voltage of 2500V AC for 1min, and the leakage current is less than 2mA, which is far lower than the national standard 30mA requirement;

  (16) Highly integrated hardware design to improve product reliability

  The hardware design circuit all adopts PCB integrated circuit design to improve the consistency and reliability of the product;

  (17) Standard circuit breaker and fuse

  Standard configuration of DC and three-phase AC fuses, standard configuration of MCB, short circuit protection in place, to ensure the safe operation of the elevator;

  (18) It can automatically escape from the fault to ensure the normal operation of the elevator

   is mutually redundant with the original control system of the elevator, and does not change the original control method of the elevator;

 

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