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6 Shenzhen powtech co.,ltd

Country China China

Supplier Grade level3

Main products POWTECH PT200 variable frequency inverter ac drive

Product Information
Power
Voltage and frequency level

 Single-phase 200-240V,50/60HZ  Three-phase 220-240V,50/60HZ

Three-phase 380-415V,50/60HZ  Three-phase 440-460V,50/60HZ

Three-phase 575V,50/60HZ  Three-phase 660V,50/60HZ 

Three-phase 1140V,50/60HZ 

Allowable fluctuations

voltage:+-15% frequency:+-15%

Control performance
Control system DSP-based high-performance vector control inverter
Output frequency G/P/Z/S/T/M type: 0.00-400Hz, the maximum frequency could be set on the range of 10.00Hz-400Hz
Control method V/Fcontrol, open-loop magnetic flux vector control 1,open-loop magnetic flux vector control 2,PG vector control
Automatic torque boosting function low frequency(1Hz)powerful output torque can be achieved under the V/F controlling
Accelerate/decelerate control Segment S curve acceleration and deceleration set mode,maximum running time is 9600 hours
Program-runing control 16 segments speed running,maximum running time is 888.88 hours
Frequency setting accuracy

Digit:0.01Hz(below 300Hz),0.1Hz(above 300Hz);analogue:1% of maximum frequency

Frequency accuracy Speed control tolerance 0.01%( (25°C±10°C))
V/F curve mode Linear,square root,user-definition set V/F Cruve
Over load capability

 G/S type:rated current 150%-1minute,200% of rated current-0.1 second

P type: rated current 120%-1minute,150% of rated current-0.1 second

Z/M/T: rated current 180%-1minute,150% of rated current-0.1 second

H type:rated current 250%-1minute,300% of rated current-0.1 second

Slip compensation 50%-100%,automatically compensate for deterioration
Maximum frequency 400Hz
Carrier frequency 0.5K-15KHZ. According to the load characteristics, automatically adjust the carrier frequency
Input frequency resolution Digit setting:0.01Hz Analogue setting: Maximum frequency*0.1%
Start torque

  G type:0.25Hz/180%   P type:0.25Hz/120%

Adjusting-speed range 1:200
Steady speed accuracy(speed control accuracy) open-loop magnetic flux vector control:+-0.5%(rated synchronous speed)
Speed control stability open-loop magnetic flux vector control:+-0.3%(rated synchronous speed)
Torque response 40ms(open-loop magnetic flux vector control)
Torque boost Automatic torque boosting;manual torque boosting0.1%-30%
Acceleration and deceleration linear Linear accelerator Mode: four acceleration and deceleration time; Acceleration and deceleration time range 0.0s-3600.0s
Dc brake

DC brake frequency:0.0Hz-maximum frequency, braking time: 0.0~36.0 second,Braking operation time:0.0%~100

Jog control

 Jogging frequency range: 0.00Hz - maximum frequency, jog acceleration and deceleration time: 0.0s-3600.0s

Multi-segment speed running achieve up to 16 segment speed run via the control terminal
Built-in PID Facilitate the realization of the process control closed-loop control system
Automatic Voltage Regulato When the grid voltage changes, automatically maintain a constant output voltage
Torque limit and control

 Dig-earth machine features, the running torque is automatically limited to prevent frequent over-current trip to rpue control can be achieved under close-loop vector mode

 Personalization features
Power-on peripherals,security self-inspected Afety of the peripherals equipments can be checked when power on,such as grounding,short circuit,etc
Common DC bus function The function of multiple inverters share the DC bus
MF key Programmable keys: Reversible run/ Jog operation function selection
 Textile pendulum frequency control Variety of triangular wave frequency control function
Wave-filter and current-limiting function Built-in wave-filter and current-limiting calculation method to reduce the frequency reported flow probability, improve the whole anti-jamming capability
Timing control Timing control function: to set the time range Oh-65535h
Keyboard extended cable standardization Customer can extend the keypad cable with standard cable.
Input signal
Running method  Keyboard/terminal/communication
Frequency setting

7 kinds of frequency setting, including adjustable DC 0-10v range, adjuststable DC 0-20mA range, panel potentiometer, etc

Starting signal Forward, Reverse
Multi-segments speed Up to 16 segments speed can be set(using the multi-function terminal or program run)
Multi-segments acceleration up to 4 segments acceleration can be set(using the multi-function terminal)
Emergency stop Interrupt controlle output
Pendulum-frequency running Process control running
Jogging Running slowly
Fault reset When the protection function is active, you can automatically or manually reset the fault condition
PID feedback signal Including DC 0~10V,DC 1~5V,DC 0~20mA,DC 4~20mA
Output signal
Running status Motor status display, stop, acceleration and deceleration, constant speed, the program running state
Fault output contacting point output AC 250V 5A, DC 30V 5A
Analogue output

Two ways analog output, you can select the eight kinds of frequency, current, voltage, temperature and other 8 signals, the output signal range can be set arbitrarily on the range of 0-10V/0-20mA

Output signal Up to 3 output signals and there 9 signal for selection.
Running function
Running function Frequency limit, avoiding  frequency ,slip compensation,reverse protection, self-tuning,PID control.
DC current brake Built- in PID regulate braking acurrent to ensure adequate braking torque without over current
Operation command channels

Three channels: the operation panel set, control terminals set, serial communication port set. Variety of means swiching

Frequency source

There are 6 kinds of frequency source: digital set, analog voltage set, analog current set,multi segment speed set, a serial port set,PID set, Variety of means switching

Input terminal

6 digital input terminals, compatible with active PNP or NPN input methods two analog input terminal, which AI1 can only be used as input voltage, AI2 can be as voltage or current input(if it needs to expand input, output terminals function)

Output termina

A digital output terminals(dual polarity output) a relay output terminals an analog output terminals, 0/4 mA-20mA or 0/2V-10V is optional, the set frequency ,frequency output, speed and other output of the physical quantities can be achieved.

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  • PT100.jpg

  • Iron case PT200.jpg

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Company

Shenzhen powtech co.,ltd

Country China China

Supplier Grade level3

President
manager: Showyee Shu(showyee@powtech.cn)
Address
NO.233 Xi Xiang Avenue,Shenzhen,China
Product Category
Electrical Components & Telecoms,Electrical Equipment,Inverters & Converters
No. of Total Employees
101-500
Company introduction

Shenzhen Powtech Co., LTD

 

Glad to share with you for variable frequency drive(VFD) :

which is also termed adjustable frequency drive,variable speed drive, AC drive,micro drive or inverter drive) is a type of adjustable speed drive used in electro-mechanical drive systems to control AC motor speed and torque by varying motor input frequency and voltage. 
 
Benefit of VFD:
Energy saving ,Tighten process control, make industry control more easier and Reduce equipment maintenance by installing variable frequency drives (VFDs)
 
Appliances of VFD:
VFDs are used in applications ranging from small appliances to the largest of mine mill drives and compressors. However, about a third of the world's electrical energy is consumed by electric motors in fixed-speed centrifugal pump, fan and compressor applications and VFDs' global market penetration for all applications is still relatively small. This highlights especially significant energy efficiency improvement opportunities for retrofitted and new VFD installations.
If you want to know more about the above information,please do not hesitate to contact me: Mr Showyee Shu
Parts of information are quoted from the following:

 

Main Markets
  • U.A.E. U.A.E. ,
  • Afghanistan Afghanistan ,
  • Brazil Brazil ,
  • China China ,
  • Germany Germany ,
  • Spain Spain ,
  • Indonesia Indonesia ,
  • Sri Lanka Sri Lanka ,
  • Pakistan Pakistan ,
  • Thailand Thailand ,
  • Turkey Turkey ,
  • Ukraine Ukraine ,
  • U.S.A U.S.A ,
  • Uzbekistan Uzbekistan ,
  • Viet Nam Viet Nam ,
  • South Africa South Africa ,
  • Zambia Zambia

Top 10 Countries import Telecommunications from Korea

Top 10 Countries import Telecommunications from Korea(Rank, Import Country, 2015, 2016)
Rank Import Country 2017 2018
Value Increasing Rate Value Increasing Rate
1 Germany $ 4,051,023 155.8% $ 3,876,527 -4.3%
2 Pr.China $ 2,597,745 69.7% $ 3,540,607 36.3%
3 India $ 609,967 -32.6% $ 342,239 -43.9%
4 U.S.A $ 236,876 -66.1% $ 315,867 33.4%
5 Thailand $ 25,096 31.0% $ 307,108 1123.7%
6 Taiwan $ 6,457 12317.3% $ 106,964 1556.6%
7 Japan $ 62,500 -53.6% $ 70,976 13.6%
8 Brazil $ 0 - % $ 46,518 - %
9 Netherland $ 8,390 459.3% $ 36,236 331.9%
10 Viet Nam $ 81,762 -15.6% $ 32,102 -60.7%
Total $ 7,776,738 47.4% $ 8,752,758 12.6%