Medium-voltage AC Drive WIN-HV Series

Transcription

1 Medium-voltage AC Drive WIN-HV Series SHENZHEN WINNER S&T CO., LTD.

2 SHENZHEN WINNER S&T CO., LTD. Trademark Definition 1. The pattern represents current; W is the initial of WINNER,which simply, vividly and intuitively expresses the attributes to another sine wave. The beautiful and flowing curve of W signifies the vitality of the company and the progress from one victory to another victory. It inspires the employee to enhance the competition of the company and stick to the conception of harmony, endeavour, honesty, win-win 2. The balance of the soaraway letter W with the ellipse denotes that the company innovates incessantly, always seeks for greater perfection in quality, and the company will take off through strategy of brand promotion. 3. the brand is obvious, it has distinct brand conception The color mainly adopts red and dark blue. The red signifies fervency, solemnness and splendor. Dark blue represents broadness, profundity and steadiness.

3 Harmony Endeavour Honesty Win-win

4 Technology Saves Energy Wisdom Creates Future

5 SHENZHEN WINNER S&T CO., LTD. SHENZHEN WINNER S&T CO., LTD. Governing unit of inverter branch of China Electric Equipment Industrial Association Shenzhen high and new technology enterprise 4 Established in Mar., 2004, Shenzhen WINNER S&T Co.,LTD. is a High- New-technology enterprise titled by the government. It is the council member of the inverter branch of china electric appliance industrial association. All the company s software and hardware were developed by itself, and all the products bears its own intellectual property. Occupying 5 floors of office and production area with 7000 square meters and anual production capacity of units, Shenzhen WINNER has become the mainstream of inverter suppliers in china and it is the first company which offers medium-voltage inverter in Shenzhen. Since established, WINNER successively launched a series first-class inverters with different control solution like, V/F control, Vector control; different operation modes, like the second quadrant operation, the fourth quadrant operation.; different mail-loop topology structure, like bi-level, tri-level, multi-level. Besides, the company brought out some energysaving products which is based on inverting technology. Based on strong technology, strict production management, reliable product quality, winner's product entered the field of power supply, iron and stell, metallurgy, mines, oil, chemistry, construction,etc. Stick to the principle of self-development and innovation, taking the route of brand building, by virtue of in-depth research of inverting technology and accurate judgment over the future of the industry, WINNER is kept developing fast and steadily. WINNER's Milestone Mar. 2004, Shenzhen WINNER was registered and established with its objective, to develop and manufacture inverters and energy-saving equipment with first-class technology and performance. June, 2004, WIN-9G series of inverters was launched and obtained wide approbate from customers June, 2005, WIN-9G series was approved by CE. July, 2005, WINNER HV Inverter project was started. Sep. 2005, WIN-9GF series was developed successfully. Nov. 2005, WIN-9GV was developed and launched. Aug., 2006, WINNER passed UKAS."ISO9001" 2006, WIN-9EV, WIN-9L, WIN-9U series inverters was developed successively, and the company fulfills the products'specialization and diversification. Dec.2006, WINNER's Hi-voltage products successfully passed the strict test executed by electric drive design institute of Tianjin, and WINNERs became the first company in Shenzhen, which owns selfdeveloped medium, commercial voltage inverters and other energy-saving products. Mar., 2007, Honored with the tile of "Shenzhen high-new technology enterprise" June.,2007,awarded with the certificate of "owning independent intellectual property" July, 2007, the factory moved to building 3, Antongda industry zone, and the operation area was expanded to be 7000 square meters. Aug., 2007, becoming the first council member of inverter branch of china electric appliance industry association. Sep. 2007, WIN-VA, WIN-VB, WIN-VC full series of vector control inverters were successfully developed, and it signifies winner smoothly achieved the products updating and upgrading. In the latter half of 2007, 17 units of hi-voltage products successively began to serve in coal steam-electric plant, steel plant, chemistry plant, cement plant. And winner became the mains supplier of inverter. Dec. 2007, winner s developing strength and results are approbated by Shenzhen Science and Technology Bureau. And winner got a reward from the government. May, 2008, winner was titled with "one of the top 10 brands of hi-voltage inverter of 2007" by HC360. June, 2008, WINNER was elected as one of the top ten satisfactory brands in 2007 by ELECTRIC AGE. June,2009, WINNER R&D team has been greatly strengthened again. Since then, WINNER is able to compete with the top brands in the world from all sides.

6 Technology Saves Energy Wisdom Creates Future WINNER Conception Business Principle To attract customers by credit, to win customers by quality, to serve customs by products. R&D Principle Seeking increasing perfection and catching up the world s latest technology. Market Principle To strictly execute the regulation of customer notification and registration, and protect the interest of our distributors and agents. To periodically hold technical training activities for our distributors and agents. To periodically hold partner talkfest, and establish sound and close cooperating relationship. 5 Quality Principle To improve quality by advance management, to satisfy customers by aesthetic ideology. Service Principle To feedback to the customers by high efficiency/to influence the customers by professional competence, To impress the customer by sincerity, to move the customer by satisfaction. Value Conception To naturalize the earth, to save energy for motherland, to deepen the welfare for employees, to seek development opportunities for the enterprise.

7 SHENZHEN WINNER S&T CO., LTD. Technology Saves Energy Wisdom Creates Future WIN-HV Series WINNER Medium-Voltage Products Prominent Feature 6 Full Range Of LV And MV Frequency Inverter In WINNER.

8 Technology Saves Energy Wisdom Creates Future WIN-HV Series Medium-Voltage Frequency Inverter WIN-HV T V 315~1250kW WIN-HV T V 315~5000kW WIN-HV T V 315~8000kW 7 WINNER Medium-Voltage Products Prominent Feature: Years of large current-driving technologies enable the company to offer the products with power up to 8000 kw Unique low inductance bus structure ensures more stable operation of power unit The distinctive design of the ventilation and cooling components layout provide the inverter with more reliable operation Non-disturbance two-way switching capability between gird and inverted frequency ensures the equipment s continuous operation The control cabinet at the low potential end of the host machine maximally distinguishes electromagnetic interference Outstanding low harmonic content level protect the grid from pollution.

9 SHENZHEN WINNER S&T CO., LTD. Product's Introduction The WINNER WIN-HV series medium-voltage frequency inverter designed and manufactured by Shenzhen Winner has prominent performance and high reliability. It is of AC-DC-AC voltage type inverter with main circuit of multi-level topology circuit. The control mode adopts SPWM technology. And the input uses isolated transformer of multiple technology, while the output is fulfilled by the solution of phase-shifting tandem multi-unit and medium-voltage to medium-voltage direct conversion. Many years of technical experience enabled WINNER and its staff to have developed inverters with low harmonic content, which is in a leading level in domestic. Perfect output voltage sine wave provides the inverter with stability of motor s operation during the whole speed regulation range. The low input current harmonics almost has no any disturbance to the grid and this ensures the operation reliability of the surrounding electric equipments. This series inverter can drive and regulate the medium-voltage motor in almost all kinds of application area. The speed regulation is smooth, and the efficiency and power factor is enviable. In particular, nowadays the world is in short of energy. WINNER inverter can bring great economic effect when used for blowers and pumps. 8 This series inverter consists of three main parts, transformer cabinet is on the left, and power unit cabinet is in the middle, while control cabinet is on the right. To improve the stability of the control circuit and to make the debugging more convenient, the control cabinet door was put on the right of the machine. This series product adopts cabinet structure with forced air cooling. And the big capacity machine adopts the cooling mode of water-cooled, air-closed circulation. The wiring terminal of input and output of the complete machine was placed on the lower left back. It is easy for connection It is commonly recognized that market develops based on good service system. In addition to trusting in such conception, Shenzhen Winner S&T Co., Ltd adheres to focus on R&D of frequency conversion technique, with an aim of producing high quality inverters and bringing more benefits to its clients.

10 Main Features of WIN-HV Series Inverter Technology Saves Energy Wisdom Creates Future Based on the SPWM technology, transformer isolation design and solution of power unit connection in series, WIN-HV series inverter (hereafter refered as the inverter) can realize direct conversion from medium voltage input to medium voltage output. Unit W1 Unit V1 Unit U1 Unit W2 Unit V2 Unit U2 Unit Vn Unit Un Unit Wn MCB Signal panel User inter face PLC DCS System Analog signal external control signal No particular requirement on the motor to be driven. Total system efficiency hits as high as 96%. Friendly user interface: The inverter has Windows 2000 operation system, large-sized true color LCD and expedite touch screen, which makes operation more convenient. What s more, the inverter can store more than 20 suits of parameter settings, and automatically memorize all the operating information for any real-time reference. Flexible control mode: local control by touch screen; remote control by I/O of built-in PLC, and host control by connection between RS485 and DCS system. The pre-charged circuit of the high-power inverter eliminates surge current at start. It is suitable to all the lowcapacity grid and peripheral devices. 9 WIN-HV speed control system diagram Two-way control power supply ensures the system s normal operation. Less harmonic content. The input terminal of the inverter adopts the phase shifting transformer superposition technology, which can efficiently suppress harmonic content of input current. And the output terminal adopts the power unit (n=3~9 units) connection in series technology, which guarantees the output waveform more close to the sine wave. At the line side, the system is of uncontrolled mode rectifying input with 6n pulse, i.e. 18 (T30), 36 pulse(t60),54 pulse(t100). While at the load side, the system is of (2n+1) levels, i.e,7 levels(t30), 13 levels(t60),19 levels(t100). Both the input and output waveform approach sine wave. Input current waveform sketch Output voltage waveform sketch Output current waveform sketch Perfect self-analysis system can online monitor the inverter s operating status. It can automatically introduce protective measures and record the operating parameters in the event of fault. Various protective measures to the input terminal, output terminal, voltage,current and temperature provide the inverter with perfect self-analysis function and strong processing capability. Automatic bypass function can online cut off the faulty power unit and ensure three- phase voltage output remains symmetrical and current output maintains balanced, so as to maximumly reduce the probability of outage. Optional non-interference automatic bypass function can perform automatic switch between the industrial frequency and inverted frequency. In case that the inverter breaks down, the bypass system will automatically switch the motor to mains supply, to guarantee the system maintains normal operation. No need to install noise filter. The input and output harmonic content can both meet the requirements of IEC :2002 No need to install power factor compensation device. The power factor exceeds 0.97 at rated load in the range of normal speed regulation. Power unit circuit elementary diagram

11 SHENZHEN WINNER S&T CO., LTD. System constitution Power unit Each phase output consists of several serially-connected power units. The number of power units varies according to different output voltage. Please refer to the fig. below. Inverter rated voltage No. of seriallyconnected power units (n) Rated voltage of power unit (V) Output phase voltage (V) Level no. per phase voltage Output voltage (kv) Level no. per output voltage T T T Different cooling modes of power unit

12 Technology Saves Energy Wisdom Creates Future The power unit can be also called a typical single-phase inverter with three-phase input and single-phase output based on sine wave PWM. Q1 Q2 Q3 Q4 Or K 11 L1 L2 Rectifying Circuit Filter Inverting Circuit Bypass Circuit sketch map of power unit Radiator Serially-connected copper bar Set screw Fast fuse Three-phase input cable Communication fibre

13 SHENZHEN WINNER S&T CO., LTD. Prominent main circuit arrangement 12 WIN-HV inverter consists of three separated cabinets: transformer cabinet, power unit cabinet and control cabinet, and all the strong current circuit, week current circuit, main circuit and control circuit are arranged in a separated cabinet. That efficiently suppresses interference and guarantees stable operation of the inverter. Reasonable deployment of transformers and cooling fans, and directly-visible temperature indication The precharging device eliminates surge current at start Interchangeable power units. That makes maintenance and repair more convenient. The cooling fans are designed to lie on the top of the cabinets, simplifying air pipeline connection. Able to provide large-capacity load with hermetically water-circulating cooling mode. No need to change the filter net, and greatly improve reliability of the inverter. Automatic bypass function can online cut off the faulty power unit and the inverter will not stop but go on running with a decreased frequency. That enhances the reliability of the system. Transformer cabinet Power unit cabinet

14 电源指示运行指示故障显示 远程 / 本地 工频投切 系统复位 高压分断 Technology Saves Energy Wisdom Creates Future Control cabinet The control cabinet lies at the side of the inverter s low potential, which can efficiently suppress electromagnetic interference. Optoelectronic isolation The built-in PLC can satisfy various digital and analog signal processing requirements. High quality components and well-designed wiring guarantee stability and reliability of the inverter 13 Ventilation and Heat Dissipation Layout The transformer cabinet and the power unit cabinet both have forced cooling fans and unattached ventilation tunnels, ensuring stability of the inverter. Adopts German EBM fan heat dissipation system, efficiently preventing temperature soaring 非专业人员严禁触碰操作触摸屏

15 SHENZHEN WINNER S&T CO., LTD. Power Unit Bypass Function This function efficiently guarantees continuous operation of the motor. On condition that any power unit breaks down, the system will automatically bypass this unit and meanwhile, bypass another two power units with the same level. The system will maintain operation but with a lower rated frequency. The system can keep operation even when three power units have been bypassed at the same time. No influence on the system if it previously runs with a frequency that is lower than the declined rated frequency. The system can enable automatically the bypass function Rated voltage of the inverter the number of serially-connected power unit in each phase declined margin when one power unit breaks down Max. operating frequency on the bypass condition T HZ 14 T HZ T HZ Inverter Bypass Function Principle of manual bypass QS2, QS3 mechanical interlock. The bypass system is recommended to be added to guarantee continuous operation of the motor. When switching to mains supply, please pay attention to the grid capacity and start mode, so as to suppress inrush current. Please start the speed tracking function when switching to mains supply QS3 MV Power Supply QF1 QS1 WIN-HV HV Inverter QS2 M MV Motor Manual bypass diagram Principle of automatic bypass KM2, KM3 electrical interlock, please refer to the fig. below. KM3 MV Power Supply QF1 DXN1 KM1 QS1 FM WIN-HV HV Inverter KM2 QS2 M MV Motor Automatic bypass diagram

16 Technology Saves Energy Wisdom Creates Future Operation interface 12-inch true color LCD touch screen and Windows 2000 operation system provide visualized parameter display and convenient operation. The operating parameters including frequency setting, frequency output, output voltage, output current, speed, output pressure, etc. are all displayed in the user interface, which makes the user to browse more easily. And the RUN/STOP operation becomes more convenient. Parameter setting mainly involves the inverter-related operating parameters such as voltage, current, frequency, time, bypass levels, and the motor-related parameters such as motor speed, power output, voltage, current, overload level. In this sub-interface, users can perform parameter copy & use, and change the initial settings at factory. Please refer to the pictures right. Enter the sub-interface through the main interface to perform function setting, parameters setting, copy& use, operation record and fault record browse. Simplify fault monitoring and analysis. Function setting includes control status (adjustment/ operation), operation mode (closed-loop /open-loop), system bypass, interface lock-up, given mode, and host control, etc. 15 Main circuit power supply AC 3Ф 50~60Hz 380V~10000V A B C U V W M High-voltage AC motor Operation Stop Forward/reverse Fault rest. Exterior fault bypass switch Multi-step speed Use definition Manual/automatic Exterior analog frequency 0~5V set value 4~20mA set value Analog voltage feedback Analog voltage feedback A nalog common terminal RUN STOP F/R RST ERR BO X1~X3 X4~X7 X8 P24 VG IG VF IF GND G WIN-HV Human-machine interface BOFF BEN BON LO TA1 TA2 TA3 TA4 TA5 TA6 TA7 COM FM0 FM1 VM0 VM1 IM0 IM1 GM SG+ SG- C1 C2 C3 High-voltage analysis Bypass permission Bypass switch Multi-function relay output terminal Operation minor fault Stop Fault Remote/local High-voltage power-up Programmable analog output terminal 0~10V } Alternative 4~20mA 0~10V } Alternative 4~20mA 0~10V } Alternative 4~20mA RS-485 To connect host machine.

17 SHENZHEN WINNER S&T CO., LTD. 16 The inverter will be produced with input current rating & input voltage rating at the request of users. There are two buttons and two switches on the front panel of the control cabinet. The button of switching to mains supply is used when the inverter breaks down. It can perform industrial frequency power supply/automatic industrial frequency bypass switch by pressing the button. The button of System reset is used for parameter setting or to reset the system at non-essential fault occurring. On condition of emergency stop required, press the button of Medium voltage disconnection to cut off output, then the inverter will coast to stop. The bottom of Remote/Local can perform remote control and local control switch. In the mode of local control, users can perform inverter speed control, frequency up and down, stop, reset, etc. on the touch screen of the inverter. While in the mode of remote control, users can control the inverter through the DCS system or other remote control station. Through RS-485 communicate port, can realize communication with host machine or control system. It conforms to MODBUS Protocol. Frequency given mode: (1) manual given mode through user interface, (2) terminal analog given mode. In the mode of terminal analog given, VG and IG correspond to voltage given signal and current given signal respectively. Through its noninterference bypass function, the inverter can be automatically self-bypassed on condition of major fault occurring, and switch the motor to the mains supply, which guarantees normal operation of the system. It can realize manual bypass through the three output terminals medium voltage disconnection, bypass permit and bypass connection. Model definition WIN-HV - T - System category Application code-heavy load, pumps, etc Three-phase rated output voltage (kv /10) Rated output current (A) Series No. of WINNER-branded medium voltage

18 Technology Saves Energy Wisdom Creates Future Basic parameters Classification Parameters Range Unit Increment Factory default Reference frequency 40.0~50.0 Hz 0.1Hz 50 Reference voltage 1500~10000 V 1V variable Maximum frequency 0~60 Hz 0.1Hz 50 upper limit frequency 0~60 Hz 0.1Hz 51 lower limit frequency 0~60 Hz 0.1Hz 3.0 Drive parameters Function parameters parameters status parameters Starting frequency 0~5 Hz 0.1Hz 0.5 acceleration time 1~255 4s 1 15 deceleration time 1~255 4s 1 15 torque boost 0~ Overload multiple 10~150 % unit bypass level 0~2 1 1 frequency inverter address 0~ host input selection With, without without host control selection with,without without control status open loop or closed loop open loop operating mode Local or remote local input mode digital,analog,multi-step speed digital analog input option 0~5V/0~20mA V/mA 0~5V Analog output option(3 ways) As per manual Bypass option with,without without Motor rated power 0~8000 kw 1kW As per specification motor rated current 0~600 A 0.1A As per specification Motor over load multiple 120~150 % Number of motor poles 2~10 \ 1 4 Motor rated speed 180~3600 Rpm Input frequency 0~50 Hz 0.1Hz operation speed Rpm Operating frequency 0~51 Hz 0.1Hz output current A 0.1A Output voltage V Output power kw Continuous operating time h 0.1h 17

19 电源指示运行指示故障显示 远程 / 本地工频投切系统复位高压分析 SHENZHEN WINNER S&T CO., LTD. Technical Specification and installation dimension 18 Specifications WIN-HV_T Capacity of drive (kva) Power of adaptive motor (kw) Rated output current (A) Output Number of serial units per phase 5 Outline dimensions (W H D) Weight (Kg) 3500~ ~ ~8550 Specifications WIN-HV_T Capacity of drive (kva) Power of adaptive motor (kw) Rated output current (A) Output Number of serial units per phase 6 Outline dimensions (W H D) Weight (Kg) 2500~ ~ ~ ~ ~14400 Specifications WIN-HV_T Capacity of drive (kva) Power of adaptive motor (kw) Output Rated output current (A) Outline dimensions (W H D) Weight (kg) 3000~ ~ ~ ~ ~22300 Number of serial units per phase 9 Input frequency 50/60Hz+3% Input voltage T30: 3kV, T60: 6kV, T100: 10kV(-20% ~ +15%) Power supply Allowed power failure time 100ms Input power factor > 0.97 (under a rated load) Efficiency > 96% (under a rated load); > 98% for the drive part Control mode PWM, phase-shifting, wave-overlaping, power cells in serial connection,ac-dc-ac,direct medium voltage output,. Output frequency 0 ~ 50Hz Precision of output frequency 0.1Hz 120% (1 minute), 150% (2s), 160% (immediate protection); heavy-load model: 150% (1 minute), 180% (2s), Overload capability 200% (immediate protection) Control features Acceleration and deceleration time 4 ~ 1200s Analog input 0~5V, 0~20mA, 4~20mA (2 ports) Analog output 0~10V, 4~20mA voltage, current and frequency optional (3 channels) output is for 5 variables Analog feedback 0~5V, 4~20mA (2 ports) Host communication Isolation RS485 interface Boolean input/output 14-channel/10-channel Overcurrent, overload, short-circuit, 3-phase current imbalance, Protection function transient power failure, input/output phase loss, overvoltage, undervoltage, body overheat, shutdown caused by external fault, automatic bypass of power unit H Operation environment temperature 0 C ~ + 40 C Environment Storage and transport temperature -40 C ~ +70 C Cooling mode Compulsory air cooling Environment humidity < 90% (no condensate) Altitude < 1,000m Protection grade IP30 W D

20 Technology Saves Energy Wisdom Creates Future WIN-HV inverter speed adjustment principle and applications The load characteristics of the vane-type pump, fan and compressor are all of square torque type, which means the torque on the axis is proportional to the square of the motor speed. The pump and fan conform to the similarity theorem on condition of geometric similarity, movement similarity and power similarity. Taking a fan (or pump) as an example, if its speed is to be adjusted while the consistency of the transmitted liquid remains constant, its performance parameters will change following the proportion theorem, the flow quantity is proportional to the speed; the pumping head is proportional to the square of the speed; and the axis power is proportional to the cube of the speed. But in actual operation, it is inaccurate to compute the speed control range and energy saving efficiency simply by the said proportion theorem due to different system parameters and operating status Energy saving principle of pumps: Different from fans, the static pumping head of pumps Hst 0. The outlet pressure (pumping head) of pumps is required to maintain constant in most occasions. The pump s energy saving principle can be represented by the diagram 2. Fig.2 Energy saving elementary diagram of pumps When decreasing the flow quantity from Q1 to Q2 by the valve, the pump speed maintains its rated speed N1, but the pipe network resistance curve (1) will change to the curve (2), leading the working intersection A to change to B. At this time, the consumed axis power can be represented by the area of H1BOQ2, almost the same to that of H2AOQ1, resulting in huge energy to be wasted. When the inverter is installed, it can decrease the pump speed from N1 to N2 with the pipe network resistance curve (1) being unchanged, so the working intersection A transfers to C. At this time, the consumed axis power can be represented by the area of H3COQ2. Compared with H1BOQ2, it is easy to find out that the inverter has prominent energy-saving capacity.

21 SHENZHEN WINNER S&T CO., LTD. 1. Energy saving principle of fans: As the fan s static pressure Pst=0, its energy saving principle can be represented by the diagram In the diagram 1, the curve (1) represents the wind pressure and wind quantity characteristics curve (P-Q) at rated speed N1. The curve (2) is the pipe network resistance characteristics curve when the air valve is widely open. The intersection A of the curve (1) and (2) indicates the point at which the motor runs with the highest efficiency. At this time, the wind pressure is assumed as P2, the wind quantity is Q1, and the axis power N1=k*Q1*P2, which can be represented by the area of AP2OQ1. On condition that the wind quantity is to be decreased from Q1 to Q2 according to production requirements: If adjusting the wind quantity by the valve, it will increase resistance of the pipe network, resulting in the pipe network resistance curve to change to the curve (3), and the intersection A change to B. At this time, the wind press is assumed as P1 and wind quantity is Q2, so the axis power N2 = k*q2*p1, which can be represented by the area of BP1OQ2. Compared with AP2OQ1, it is easy to find out that the axis power decreases just a bit. When adopting the inverter to conduct speed adjustment, the fan speed will reduce from N1 to N2. As the fan s static pressure Pst=0, conforming to the similarity theorem, the wind pressure and wind quantity characteristics curve(p-q) at the speed N2 can be represented by the curve (4), which converges the curve (2) at point C. At this time, the wind pressure is assumed as P3 and wind quantity is Q2, so the axis power N3=K*Q2*P3, which can be represented by the area of CP3OQ2. It is easy to draw a conclusion that N3 decreases steeply due to hefty decline of wind pressure. Fig. 1 Energy saving elementary diagram of fans Compared with the valve control mode, the inverter can help save huge energy. The saved axis power N=K*(P1-P3)*Q2, which can be represented by the area of P1BCP3.

22 Technology Saves Energy Wisdom Creates Future Application cases The power plant owns a generator with annual production capacity of 200MW. It was installed with two 1250kW/6kV induced draft fans. The following diagram shows energy-saving efficiency after WIN-HV inverter is installed Before Reformation After Reformation Machine load (MW) Total power of the Motor load ratio of the Total power of the induced draft fans(kw) induced draft fans (%) induced draft fans(kw) Energy saving ratio (%) In most of the power plants, the induced draft fan of boiler furnace commonly runs at a constant speed with power frequency. It is wasting quite lots of electricity in the process of adjusting the wind quantity via the valve. The 200WM generator usually runs with peak shaving, with huge valley-to-peak difference. When WIN-HV inverter is installed, the induced draft fans get access to realize speed adjustment, as well as wind pressure and wind quantity control no matter whether the valve is open or not. Accordingly, WIN-HV inverter is able to help the power producer save energy and cut cost, with energy-saving rate of 20%~70%. 21 Indirect economic benefits Strengthen reliability of the equipments The installation of WIN-HV inverter realizes soft starting in a real sense,eliminates huge surge current and mechanical wear abrasion so as to prolong the life of the equipments. Low-speed operation reduces the fan s vibration and the bearing s wearing, thence the reliability of the equipment is improved. Reduce maintenance and repair cost WIN-HV inverter can help the user reduce maintenance and repair cost as it eliminates huge surge current and mechanical wear abrasion. Enhance automazation level WIN-HV inverter is equipped with several external signal and computer interfaces, which enable the inverter convenient to connect with the control system PLC, DCS &FCS, communication system, energy management system and other management system. It greatly enhances the machines roboticized control and management level. Relieve labour intensity On condition of the load changed, it is very inconvenient to adjust the wind quantity by changing the valve opening. And this control mode has poor linearity and high fault rate. In contrast, when adopting WIN-HV inverter, it can adjust the speed of the fan by regulating the fan s motor frequency. It is much easier to operate, with perfect linearity and control sensitivity.

23 SHENZHEN WINNER S&T CO., LTD. Application area WIN-HV medium voltage inverter has been widely used in the fields of power plant, iron and steel, oil, mine, construction, etc for the medium-voltage motor s speed regulation, energy saving, soft starting and intelligent control. 22 Thermal power plant: Coal pulverize, ventilator, induced draft blower, powder extraction blower, circulating water pump, feed water pump, condensate extraction pump, heat water supply pump, heat back water pump, etc Iron and steel plant: Feed water pump, dust exhaust fan, induced draft blower, oxygen generator, Mine: Slurry pump, ventilator Oilfield: Water flood pump, crude oil pump Chemical plant: Compressor, blower, circulating water pump Water supply work and wastewater treatment plant: In-take pump, feed water supply pump, self-fractionating pump, sewage pump, Cement plant and ceram plant: Grinding machine, pump, induced draft blower, dust exhaust fan, etc Other field: Pumps and fans used in the industry of medicine, paper making and food.

24 Technology Saves Energy Wisdom Creates Future Quality Management System Quality policy To improve quality by advanced management, to satisfy customers by aesthetic ideology. Quality management To strictly control the quality according to ISO 9001:200 Quality assurance To produce the goods strictly according to the national standards, GB/T ,GB ,GB/T ,GB/ T Market management To strictly execute the regulation of customer notification and registration, and protect the interest of our distributors and agents. To periodically hold technical training activities for our distributors and agents. To periodically hold partner talkfest, and establish sound and close cooperating relationship. After service Complaint disposal: reply in written form. Service response time: within 24 hours in the area where there is a service center. Other area: 48 hours. After service line:

25 SHENZHEN WINNER S&T CO., LTD. Guarantee In the condition that the breakdown of the products is caused by the product itself, as from the delivery date: For domestic customers: the goods with breakdown can be returned within 1 month without charge, can be replaced within 3 months without charge, can be repaired within 12 months without charge. For domestic customers: we offer free parts for products which break down within 12 months. All the products from WINNER enjoy lifelong paid service. 24

26 SHENZHEN WINNER S&T CO., LTD. Address: Building 3, AntongdaIndustrial Park, No.1 Lucian Road, Baoan District, Shenzhen, China Web: This catalog is subject to change without notice WINNERS-MI /05/14