Technology with love Voltage Drive... · Technology with love ... driving equipments such as centrifugal fans, blowers, pumps and compressors, etc. Customers can get high beneﬁ

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Technology with love

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Hiconics Drive Technology Co., Ltd. is a professional manufacturer in designing and producing medium voltage variable frequency drives (MV VFD). HIVERT series MV VFD have been widely used in power generation, metals, mining & minerals, petrochemical, water, cement, pulp & paper etc. to realize the speed regulation, energy saving, soft start and intelligentized control for all kinds of high voltage motors which driving equipments such as centrifugal fans, blowers, pumps and compressors, etc. Customers can get high benefi ts by using HIVERT drives.

The company now has over 300 personnel, including a top professional R&D team and technical workers which take 30% of the staff. Over 50% of the staff has bachelor’s degree. The company pays much attention to human resource development.

HIVERT series have independent intellectual property right, and already pass the strict tests of National Electric Sciencifi c Academe and National Quality Supervision Test Center for Electric Control and Distribution, and also pass authentication of ISO9001-2000 quality guarantee system. HICONICS is one of the participate members in the formulation of national medium voltage standard.

HIVERT series have obtained outstanding achievements in operation. Both products’ quality and service receive good comments from users and lead the position in many national application fields. HICONICS’ 1800kW VFD has been used in Daye Special Steel Group, the running capacity is one of the biggest domestic MV VFDs at that time. The 630kW VFD which used in the centre of Cheng Island of Shengli Oil Field is the fi rst domestic MV drive applied at offshore platform. HIVERT 6kV/4000kW high-power MV VFD was exported to Russia in 2006.

Along with the perfect performance on fans and pumps, HICONICS solves two technology difficulties vector control and grid feedback in 2 years, and successfully launched grid feedback type HIVERT-YVF MV VFD which has 4 quadrant running performance. Compared to universal series this kind of products has excellent constant torque start and fast braking characteristics. They are especially applicable for mine hoists. HICONICS launched new series products which can apply for high power synchronous motors in 2007. In August 2008, a unit of 10kV/7600kW HIVERT high power MV VFD runned successfully and pass the commissioning at Beijing Heavy Machinery Works which is HICONICS’ test partner.

End of 2008, HICONICS already saled more than 40 units to Russia. The biggest capacity is 6kV/4000kW. At present HICONICS established friendly relationship with some countries in East Europe and South Asia.

HICONICS’ products have professional technical design, stable & reliable quality, preponderant price ratio. HICONICS would like to work together with domestic and overseas partners to devote to the technology innovation of industrial control, and develope a green future.

Com

pany Introduction

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HIVERT general MV VFD has runned successfully at different industries in China, Russia, India, Europe. It can provide perfect control solutions for users’ high voltage AC (synchronous/induction) motors to realize soft start, speed regulation, energy saving and intelligent control.

Application Industries and Fields

thermal power, hydropower, garbage power.

. force draft fan . slurry pump . primary fan . compressor . coal mill . secondary fan

. water pumping energy storage pump . induced draft fan . condensation pump . powder exhaust fan

petroleum, petrochemical, natural gas

. pipeline transportation pump . water injection pump . feed water pump . submerged pump

. brine pump . compressor . pressure blower .feed water pump for offshore oil platform

coal mines & minerals

. descaling pump . mud pump . slurry pump . clean water pump . feeding pump

. stirring pump . kiln transmission . ventilation fan . drainage pump . medium pump

steel and nonferrous metallurgy

. blast furnace blower . primary dust removal blower . induced draft fan . compressor

. kneader . compressing blower . force draft fan . secondary dust removal blower

. water-delivery pump . descaling pump . feed water pump

cement and building materials

. kiln draft fan . kiln fan . rotating kiln transmission

. coal mill . dust removal fan . cooling fan

municipal (heat supply, water supply, sewage etc.)

. pressure blower . induced draft fan . force draft fan . pressure pump

. sewage pump . cleaning water pump . lifting pump . reclaimed water pump

light industry, chemical industry

. gas blower . pressure pump . compressor . axial fl ow pump

. soft water pump . water-delivery pump

military industry and others

. test stand . wind tunnel

Application Fields

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Power Cell Cabinet

Controller: realize vacuum vector PWM control, collect and deal with signals, optic fiber communication with power cells, completely electric isolation.

Power Cell: modular design, can be inter-changed, easy for production and maintenance.

I/O Board: dealing with system digitals and analog signals, meets requirements from different application fi elds.

Monitor: using DSP as control chip, Chinese/English LCD display, can be used for parameter setting, running recording, fault storage and communication etc. no hard disk, easy for operation.

By-pass Cabinet or Switching Cabinet (Optional)

Isolated kni fe-swi tch, vacuum contactor, vacuum breaker or other assembled modes can be chose according to users’ working conditions. The function of by-pass cabinet is to put the motor into grid network running to ensure the continuity of production when the MV VFD is out of running; the function of switch cabinet is to switch the MV VFD output to different motors.

System Cooling Blowers

EBM blowers made in Germany, big air volume and long lifetime.

Transformer Cabinet

Isolated Transformer: secondary multi-winding output, supplies indepent phase-shift power for power cells, can greatly improve the current wave form of side network, and can reduce the harmonic pollution of the grid network.

Cool ing Blowers of Transformer: depending on d i f ferent power to configure corresponding dry-type transformer cooling fans and centrifugal blowers on the top of the cabinet.

Product structure

Beijing Hiconics Technology Co.,Ltd

transformer cabinet power cell cabinet

air cooling blower

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HIVERT MV VFD adopts AC-DC-AC mode, the main circuit switch component is IGBT. HIVERT VFD adopts power cells in series and overlapping method, takes full advantages of the mature technology, thus has high reliability.

1. Main Circuit Topology Diagram6kV series: 15 or 18 power cells, 5 or 6 cells in each phase, three phase Y connected.10kV series: 27 power cells, 9 cells in each phase, three phase Y connected.

cell

cell

cell

cell

cell

cell

cell

cell

cell

cell

cell

cell

cell

cell

cell

cell

cell

cell

cell

cell

cell

cell

cell

cell

cell

cell

cell

isolated transformer power cell

input three-phase AC power (any voltage)

phase-shift secondary winding

Working Theory

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line voltage

phase voltage

line voltage

phase voltage

Voltage Overlapping Diagram

HIVERT MV VFD has several power cells connect in series in each phase. Independent phase-shift power is supplied to the power cells by the isolated transformer. Change the power cells number in each phase can get different voltage level outputs conveniently without limitation from voltage resistance. For example, 6kV MV VFD has 5 or 6 cells in each phase, the rated voltage of each power cell is 690V or 640V, the phase voltage is 3450V (the line-voltage is 6kV); 10kV VFD has 9 cells in each phase, the rated voltage of each cell is 690V, the working voltage is 640V.

Power Cell Structure Diagram

The power cell has AC-DC-AC stucture, equal to a three-phase input, single phase output LV voltage source VFD. All the cells have the same electric and mechanical parameters, easy for maintenance and replacement.

MV VFD series cell number cell rated voltage(V) cell work voltage(V) output phase voltage(V) output line voltage(kV) voltage level in each phase

6kV

5 690 690 3450 6 11

6 640 640 3480 6 13

10kV 9 690 640 5770 10 19

take 5 cells for example take 9 cells for example

Working Theory

The power cell receives the signals through the optic fi ber, and adopts the vacuum vector PWM mode to control the IGBT conduction and break of Q1-Q4, output single phase PWM waveform. Each cell only has three possible output voltage status. When Q1 conducts with Q4, the output voltage status of L1 and L2 is 1; when Q2 conducts with Q3, the output voltage status of L1 and L2 is -1; when Q1 conducts with Q3 or Q2 conducts with Q4, the status of L1 and L2 is 0.

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A

B

C

A/L1

B/L2

C/L3

SPEED1

SPEED5

SPEED4

SPEED2

SPEED3

RESET

DATA-DATA+

OFF HV

OFF HV

READY

XT1123456789

10111213141516171819202122232425262728293031323334

XT3

XT2AIO1

AIO3

AIO2

AIO4EGNDFWD

REV

E-STOP

PE

W

V

U

SPARE

EGND

FAULT

RUN

EXT CTRL

analog setcommon termina

common termina

opening signal

closing signal

analog feedback

analog feedback

FATAL FAULT

AT SPEED

IM 3~

high voltage indicator

fault indicator

running indicator

remote control indicator

lock-phase successful

heavy fault output (closing effective)

heavy fault output (opening effective)

three-phase HV input power three-phase induction motor

grounding

analog output frequency(4-20mA)




level positive direction start /stop/ pulse start

level reverse direction start /stop/ pulse stop

emergency stop

speed 1

speed 2

speed 3

speed 4

speed 5

remote reset

high voltage break

high voltage break

standby

activate switching

single phase AC220V control power

system diagram

Working Theory

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The HIVERT general medium voltage VFD is manufactured by Hiconics Drive Technology Co., Ltd. is an equipment for use with high voltage (synchronous or asynchronous) AC motor speed regulation. The MV VFD adopts ower cells connecting in series topology and wave stacking method, well developed technique and reliable devices. It has self-innovated SVPWM control strategy with advantages of high control accuracy, fast response, and greater than 98% VFD effi ciency; Chinese/English LCD display; modular design of power cell, convenient to maintain; wide input voltage scope meets the demand of power network; AVR (automatic voltage regulator) and 0Hz function of output voltage to prevent damage to motor isolation from over-voltage and reduce the motor loss without load; torque boost function, raise output voltage & output torque during low frequency running; rotating speed (fly) start function and transient power loss function, meet the continuous production requirement; no pollution to grid network and has high power factors.

The power supply input and output of HIVERT general medium voltage VFD meet the most stringent IEEE 519-1992 and GB/T14549-1993, no need of independent input fi lter; the cost for harmonic elimination is saved for customers. Because of the high power factor of the system, the compensation device for power factor is not needed, thus the reactive input and the input capacity are reduced, and the cost for capacity increasing of power network is minimized.

High Quality Power Input

By phase shifting of the secondary winding and multi-pulse diode rectifi er, isolated powers can be acquired and supplied for power cells. (30/36 pulses for 6kV, 54 pulses for 10kV) By using the technique of multi-pulse rectifi er, the harmonic current could be eliminated greatly.

In Figure 1, the harmonic distortion of HIVERT 30-pulse total current in the case of typical power impedance is 1.00% only, the corresponding voltage distortion is 1.00% only.

wave form of output line-voltage wave form of output current30-pulse wave form of input voltage/current

Product Characteristics

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The Features of Nearly Perfect Power OutputThe technique of power cell series connecting (namely multiple power cell structure) applied in HIVERT general medium voltage VFD greatly eliminates the output harmonic content, the output waveform is almost a perfect sine waveform (see Figure 2 and Figure 3). Compared with other high voltage and high power VFDs, it has the following advantages:

● No need of extra output fi ltering device

● Directly driving the general high voltage synchronous or asynchronous motor, and the temperature of the

motor will not be increased

● No need of motor derating operation

● No dv/dt damage to insulation of motor and cable

● No torque ripple induced by harmonics, and the service life of motors and mechanism devices can be

extended

● No cable length limited when voltage drop is in the allowable range

Besides the above advantages, the HIVERT general medium voltage VFD has the following functions and features:● Protection of overload and over-current

● Protection of open-phase and grounding

● Protection of over-voltage

● Overheat protection

● Current limited function

● Interlock protection of control power supply

● Two sets of control power hot standby for redundancy

● Power cell by-pass function (optional)

● Cabinet door opening alarm function

● Lock-phase function

● Synchronizing switch function between variable frequency and work frequency

● Soft start of motors, no impact to mechanical equipment and network

● High effi ency: greater than 98% VFD effi ciency under rated work condition

● Power cell communicate with controller through optic fi ber, completely electric isolated

● Inner set PID regulator, can realize running in closed-loop

● Multiple communication methods with host computer, isolated RS485 interface, standard MODBUS RTU

communication protocol, PROFIBUS DP (optional), industrial Ethernet communication protocol (optional)

● Accurately fault records, can inquiry information and locate fault

● Compact construction, reasonable layout (can do customer-design)

Product Characteristics

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GB 156-2007 Standard voltages

GB/T 1980-2005 Standard frequencies

GB/T 2423.10 Electric and electronic products--Basic environmental test regulations for electricians--Guidelines for vibration (sine)

GB/T 2681 Colors of insulated conductors used in electrical assembly devices

GB 2682 Colors of indicator lights and push-buttons used in electrical assembly devices

GB/T 4588.1-1996 Specifi cation for single and double sided printed boards with plain holes

GB/T 4588.2-1996 Sectional specifi cation: Single and double sided printed boards with plated-through holes

GB 7678-87 Semiconductor self-commutated converters

GB 10233-88 Basic test method for electric-driving control gear assemblies

GB 12668-90 General specifi cation for speed control assembly with semiconductor adjustable frequency for A.C. motor

GB/T 15139-94 General technical standard for electrical equipment structure

GB/ 13422-92 Power semiconductor converters--Electrical test methods

GB/T 14549-93 Quality of electric energy supply harmonics in public supply network

IEEE 519-1992 Practices and requirements for harmonic control in electrical power systems

GB/T 12668.4-2006 Adjustable speed electrical power drive systems. Part 4: General requirements. Rating specifi cations for A.C. power

drive systems above 1000V A.C. and not exceeding 35kV

GB 3797-2005 Electric-driving control gear--Part 2: Electric-driving control gear incorporating electronic devices

GB/T 2900.18-2008 Electrotechnical terminology--Low voltage apparatus (eqv IEC60050-441:1984)

GB/T 3859.1-1993 Semiconductor converters. Specifi cation of basic requirements (eqv IEC60146-1-1:1991)

GB/T 3859.2-1993 Semiconductor converters. Application guide (eqv IEC60146-1-2:1991)

GB/T 3859.3-1993 Semiconductor converters. Transformers and reactors (eqv IEC 60146-1-3,1991)

GB 4208-2008 Degrees of protection provided by enclosures (IP Code) (eqv IEC 60529:1989)

GB/T 16935.1-2008 Insulation coordination for equipment within low-voltage systems - Part 1: Principles, requirements and tests

(idt IEC 60664-1:1992)

IEC 60038:1983 IEC Standard voltages

IEC 60050-151:2001 International electrotechnical vocabulary, chapter 151: electrical and magnetic devices.

IEC 60050-551:1999 International Electrotechnical Vocabulary. Chapter 551: Power electronics.

IEC 60076 Electric power transformer

IEC 60721-3-1:1997 Classifi cation of environmental conditions Part 3: classifi cation of groups of environmental parameters and their

severities, storage.

IEC 60721-3-2:1997 Classifi cation of environmental conditions Part 3. Classifi cation of groups of environmental parameters and their

severities.

IEC 60721-3-3:2008 Classifi cation of environmental conditions Part 3. Classifi cation of groups of environmental parameters and their

severities. Stationary use at weather protected locations.

IEC 61000-2-4:2002 Electromagnetic compatibility (EMC) Part 2- Environment chapter 4- Compatibility levels in industrial equipments

for low-frequency conducted disturbances.

IEC 61000-4-7:2002 Electromagnetic compatibility (EMC) Part 4: Testing and measurement techniques chapter 7. General guide on harmonics

and inter-harmonics measurements and instrumentation, for power supply systems and equipment connected.

IEC 61800-3:2004 Adjustable speed electrical power dive systems Part 3: product standard including specifi c test methods.

IEC 60757-1983 Identifi cation of insulated and bare conductors by colors.

IEC 106:1989 Environment condition guides for specifying performance rating of equipments.

Execute Standards

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VFD rated power 250-12500kW/315-16000kVA rated voltage 6kV/10kV -20% +15% rated frequency 50Hz/60Hz -10% 10% modulation technique SVPWM control power 380VAC 1 5kVA depend on power level input power factor >0.96 efficiency >0.96 for variable frequency >98% output frequency range 0Hz 120Hz frequency resolution 0.01Hz 0Hz 80Hz 0.02Hz 0Hz 120Hz instantaneous over-current protection 200% protect immediately ( can be customerized ) overload capability 120% 2 minutes 150% 3 seconds current limited protection 10%-150% setting analog inputs Two loops 4 20mA analog outputs Four loops 4 20mA

host communications Isolated RS485 interface, ModBus RTU, Profibus DP(optional),

Industry Ethernet Protocol optional accelerating and decelerating time 5s 1600s(has relationship to load) inputs and outputs switch signals 12 inputs/9 outputs (extensible) environment temperature -5 45 storage/transportation temperature -40 70 cooling methods forced air cooling environment humidity <95%, no condensation

installing altitude <1000m when altitude is higher than 1000m each 100 meter

increasing needs 1% derating of VFD dust Non-conductive, no causticity 6.5mg/ protection level IP30 IP31 cabinet colors PANTONE Cool Gray 1U & 2915U can be customerized

Type and Selecting Notation

Select the type of the load of HIVERT general MV VFD refer to the rated voltage and current of the motor, and refer to the power selection.For example, the type code HIVERT-Y06/077 represents a vector control VFD with the voltage capacity which has 6kV rated voltage and 77A rated output current (the 800kVA power), it can be used to drive the high voltage asynchronous motor satisfying 6kV rated voltage , 630kW rated power and less than 77A rated current.

Technical ParametersHIVERT general medium voltage VFD products has 3, 3.3, 4.16, 6, 6.6, 10, 11kV classes. The customer-design products with given voltage and power grade can also be provided.

Please consult with Hiconics Drive Technology Co. Ltd. for the information beyond the above table.

Product Parameters

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HIVERT -Y(T)03.3/ INVERTER CAPACITY (kVA)

ADAPTABLE MOTOR (kW) WEIGHT (kg) CABINET TYPE

48 275 220 2040

61 350 275 2100 GD1

77 440 350 2567

96 550 440 2797

130 750 590 2967

GD2

154 880 700 3360

173 990 790 3480

192 1100 880 3590

243 1400 1100 3937

GD3

304 1750 1400 4928

400 2300 1825 5428 GD4

500 2900 2280 6965 GD5

Specification

Specification of 3.3kV

HIVERT-Y(T)04.16/

31 250 200

40 300 240

48 350 280

61 450 350

77 550 450

96 700 550

130 950 750

154 1100 900

173 1250 1000

192 1400 1100

220 1600 1250

243 1800 1400

304 2250 1800

400 3000 2400

500 3600 2900

550 4000 3200

610 4400 3550

680 5000 4000

760 5500 4400

860 6200 5000

1180 8500 6800

GD1

GD2

GD3

GD4

INVERTER CAPACITY (kVA) ADAPTABLE MOTOR (kW) WEIGHT (kg) CABINET TYPE

2050

2180

2300

2450

2780

3039

3217

3650

3790

3920

4160

4300

4928

5810

7510


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HIVERT -Y(T)11/ INVERTER CAPACITY (kVA)

ADAPTABLE MOTOR (kW) WEIGHT (kg)

CABINET TYPE

31 590 470 4203

40 760 610 4473

48 920 730 4550

61 1200 930 4630

GB1

77 1500 1175 5985

96 1800 1460 6585

104 2000 1585 7187

115 2200 1760 7537

130 2500 1980 7957

GB2

154 2900 2350 8720

160 3000 2440 10500

192 3700 2950 12030

243 4600 3700 13890

GB3

304 5800 4625 18450 GB4

364 6900 5550 20300 GE4

462 8800 7050 GB5

580 11000 8840

760 14500 11600

Specification

HIVERT -Y(T)06.6/ INVERTER CAPACITY (kVA)

ADAPTABLE MOTOR (kW) WEIGHT (kg) CABINET TYPE

31 350 280 3100

40 450 365 3370

48 550 440 3550

61 700 550 3790

GA1

77 880 700 4100

96 1100 880 4300

130 1500 1200 5775

GC2

154 1800 1400 6450

173 2000 1580 7150

192 2200 1760 7570

220 2500 2000 7750

243 2800 2200 8930

GC3

30 4 3500 2780 9500

400 4500 3650 11500 GC4

500 5700 4550 13000 GA5

550 6300 5000

610 7000 5500

680 7800 6200

760 8700 6950

860 9800 7850


Specification of 11kV

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17www.hiconics.com


1. The minimum length of the cable tube is the length of VFD cabinets and the bypass cabinet.

2. For the safety and convenience of the cable routing, it is recommended that the cabinets be equipped upon the cable tube see above diagram. The bottom of the VFD is made of 10# channel steel, (For rated power is larger than or equal to 1600kW, it is made of 16# channel steel. For rated power is larger than 4000kW, it is made of 18# jiost steel.) thus select the right one according to the VFD weight.

3. A certain space should be kept around the cabinets. The distance between the back of cabinet to the wall should be no less than 1000mm for 6kV VFD, and no less than 1200mm for 10kV VFD. The distance between the top of cabinet to the ceiling should be no less than 800mm, the distance between the front of cabinet to the wall should be no less than 1500mm.

Cable Channel Protective Steel

Amplification of A

Blower 10#(16#)Channel SteelSpot Welding the Cabinet and Channel Steel After Installation

VFD Front(A Group per Meter)

Galvanized Round Steel Plate

Take 1800kW/10kV VFD for example:

Section Diagram of Cable Duct & Trench

Cabinets Layout (Front)

Installation Instruction

18 www.hiconics.com


HIVERT MV VFD is composed of transformer cabinet, power cell cabinet/control cabinet. High power VFD has to be equipped

with starting cabinet. See dimension details of HIVERT General MV VFD in Outline Dimensions, which including the basic shape,

location, installation dimensions, as well as hoisting location, size and location of up air blower and input wiring hole.

Requirements of Transportation● HIVERT series medium voltage VFD may transported by truck, train, ship etc.

● During the transportation of HIVERT series medium voltage VFD, please be careful, gently lay down, keep rainproof,

forbidden exposed to sunlight, strenuous vibration and impact, and inversion of cabinet.

● Please consider the possibility of height limitation, while selecting the conveyance and route.

● The bearing of conveyance should be larger than the weight of HIVERT series MV VFD

Requirements of StorageThe operation circumstance temperature range of HIVERT series medium voltage VFD is -5 45 and the storage circumstance

temperature range is -40 ～70 . The circumstance temperature can affect the life time and reliability of the VFD in high degree.

Please don’t install the VFD in a high temperature situation. If the circumstance temperature is higher than the permission value,

it is strongly suggested that ventilation condition be improved or air-condition be equipped. Following situations should be avoided

for VFD storage:

● Exposed to sunlight ● Corrosion gas ● Infl ammable and explosive gas

● Conductive dust ● Humidity ● Salt, oil fume and dust

Three possible methods of handling HIVERT cabinets:● Overhead Crane Lifting ● Hand Chain Hoist Lifting ● Roller Lifting

Requirements of Civil Construction● The VFD has to be installed upright to the ground

● There is no obvious vibration of the foundation

● The ground must be fi re-proof material, smooth and wear-resistant, level and can bear the weight of VFD (minimum 1000kg/m2)

Attention!● The transformer cabinet and power cell cabinet are whole assembly, strictly tested, and carefully packed in the factory before

the delivery. When lifting, please do best to make the lifting center coincident with the barycenter of transformer cabinet and

power cell cabinets.

● According to the package mark and drawing position to lift the transformer cabinet. Don’t lift the transformer cabinet only by

hook of the cabinet.

● If the installation ground is not fl at, the metal cabinets of the VFD may be buckle, causing the cabinet doors to be misaligned

and/or not open and close properly.

● The devices inside the cabinet are not weatherproof. If it is necessary to temporarily store the drive in an outdoor area, heaters

should be placed inside the equipment to prevent moisture accumulation, and a plastic cover or a tarp should be placed over

the drive.

● Standing under the crane is forbidden while lifting the cabinets.

● Forbidden to correct the cabinet position while the cabinet is tilted during lifting, otherwise death may be caused because of the

heavy cabinets.

Transport & Installation

19www.hiconics.com


Power Cable SelectionSelection of power cable should strictly observe related norms and meet the following requirements:

● Current carrying capacity ● Manufacturer standard

● Installation and laying modes ● Voltage drop caused by cable length

● Power industry standard

Attention!

● Armored cables with shielding effect is recommended for high voltage cable used between the VFD and motor;

● If the whole section area is less than 50% section area of single-phase conductor, a grounding cable is needed to prevent the shield

over-current produced by potential difference of grounding grid.

● Section area of grounding cables should be bigger than 16mm2

● After cabinets are installed, the cabinets and channel steel base should be fi xed by spot wielding, and the channel steel base should

be reliable grounding. The value of grounding resistance should be no more than 4Ω.

Selection of Control, Signal and Communication Cables

● High quality single shielded twisted pair line or multiple shielded twisted pair line should be selected for control, signal and

communication cable.

● Analog input and output cable: whole shielded twisted pair line, section area 0.5～1.5mm2

● Digital input and output cable: whole shielded twisted pair line, section area 0.5～1.5 mm2

● Rotary encoder cable: whole shielded twisted pair line, section area 0.5～1.5mm2

● Communication wire: Special communication wires or whole shielded twisted pair line,section area 0.5～1.5 mm2

Attention!

● Control, signal, communication, power wires and power cables should be routed separately in cable channel and bridge duct. In

case of mix routing, the distance between the secondary wires and power cables should be kept larger than 30cm. Avoid to lay wires

in parallel as possible, if parallel routing is inevitably, the longer the parallel wires is, the larger the distance between the secondary

wires and power cables should be kept.

● It is not permitted that power wires or ground wires share a common shielded wire with signal wires.

● If the length of signal or control cable is longer than 50m, active isolated converter and auxiliary relay should be set in the input and

output circuit.

● Shielding layer of cables should be single-end grounding at the side of VFD.

● For diminishing the electric potentials interference between different components, a electric potential balance cable should be laid

parallel to control wires, and the section area of wires should be bigger than 16mm2

● If there are relays or contactors in the circuit, or the load is inductive or capacitive, anti-interference components should be mounted

in the loop of relays and contactors.

● Control, signal and communication cables should be laid by the corner and the zero electric potential to improve the capability of anti-

interference.

● Cables for different kinds of signals should be cross routing.

● Shielding layer to terminal should be short as possible. Avoid wiring the shield to grounding spot by a single long cable.

Please consult with Hiconics Drive Technology Co. Ltd. for more information.

Transport & Installation

20 www.hiconics.com


Every HIVERT MV VFD has to pass complete and strict test to ensure the reliability.

Test of Materials

Test of Control Board Test of Power Cell

Aging of Power Cell

Aging of Control Board

Test of Power Cells as a Unit

Reliability &

Service

Attention!In the case of the special load or special motor or special working environment, besides refer to rated power and rated current of the motor, the type selection of HIVERT general medium voltage VFD should abide by the following advices:1. If the torque ripple of the load such as compressor, vibrating machine and kneader is high, the practical process and the working condition should be found out fi rstly, and that the rated current of the selected HIVERT medium voltage VFD is greater than the maximum current under the industrial frequency must be ensured.2. The rated current of the motor used in submersible pump or submerged pump is usually greater than the rated current of the motor, the rated current of the HIVERT general medium voltage VFD should be greater than the rated current of the motor.3. For an asynchronous motor with multiple poles, the rated current of the selected HIVERT general medium voltage VFD should be increased in proportion according to the rated current of the motor and the working condition.4. The rated current of the selected HIVERT general medium voltage VFD which is used in the special fans, such as roots fan, should be increased in proportion.

21www.hiconics.com


Users of HIVERT MV VFD can get 24hrs immediate service.

Selection of MV VFD

Application Proposal

Product Customer-design

Installation

Commissioning

Training

Supply of Spare Parts

Site Diagnose

Remote Diagnose Technology Support

Maintenance

Application Evaluation

Test Unit For Whole System

Aging of MV VFD

Reliability &

Service

5. When the HIVERT general medium voltage VFD drives several parallel motors, the VFD which has the higher power should be selected according to the total power of the motors.6. For impacting load, such as oil pump, a proper enlarge of the capacity should be taken into account during selection of HIVERT general medium voltage VFD.7. When used in the extreme environments, such as high temperature or high altitude (>1000m), the HIVERT general medium voltage VFD should be derating, and one level higher grade type of VFD should be selected.8. If the working condition demands of explosion-proof, the HIVERT general medium voltage VFD should be placed at safety site because that it has no explosion-proof design.

The above advices do not include the cases of special loads and motors. Please contact with Hiconics Drive Technology Co. Ltd. to confi rm the type selection of the HIVERT general medium voltage VFD.

22 www.hiconics.com


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