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LCD Display with input and output parameter Servo control Voltage regulator 100kVA

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LCD Display with input and output parameter Servo control Voltage regulator 100kVA

Country/Region china
City & Province wenzhou zhejiang
Categories Refrigeration & Heat Exchange

Product Details

Wenzhou Modern Group is a leading company in the manufacture of Power Quality and Energy Saving Products in China.


Milestones:

  • 1979: Founded as a manufacturer of transformer based power products
  • 1988: Constant voltage transformer introduced and UL certified
  • 1992: Became a strategic partner for GE Healthcare in China
  • 1995: Obtained ISO9001 quality system
  • 2003: Introduction of the patent variable transformer
  • 2005: Became a strategy partner of Emerson Network Power
  • 2010: Obtain CE for the voltage stabilizer
  • 2013: Obtain CE for voltage optimization unit

Certification:

 

Certification       More Certifications we are

       Applying... ...                     

 


Strict Quality Inspection:

                                                     


Features:

1. Silent design with moving Long life roller carbon brushes, High reliability and low maintenance
2. Unique compact dimension.
3. Digital control.

4. Rich protection functions. 
5. Efficiency up to 98%
6. Independent phase voltage regulation. Changeable through LCD touchscreen display
on site.

7. Manual bypass, Automatic bypass (Optional)
8. Remote monitoring by RS485 or RS232 or WIFI, GPRS.


Our Patent Structure:

                       

  • Our patent carbon brush with high conductivity, small sparks, and long life
  • We use low speed, high start torque motor for stable operation
  • Patent three phase individual voltage regulator, which realizing the whole unit 2/3 smaller than traditional one.

Specifications:


Dimensions


Remote Control:

  • Centralized management by computer
  • Install special background monitoring software in a computer terminal can realize the remote operation and control.

HOW TO CHOOSE A VOLTAGE STABILIZER?


What's the difference between Roller carbon brush with the Flat carbon brush?


Six kinds of technology for the voltage stabilizer


Comparative of the different of Voltage stabilizer:

 Servo with the roller brush and columnar transformerServo with the flat  brush and columnar transformerServo with the flat brush and Flat transformer

Induction AVR

with Oil cooling

Electric AVRStatic AVR
Typical efficiency≥98%≥97%≥95%80%~90%90%≥98%
Power factor0.990.990.85~0.950.8~0.90.85~0.90.8
Correction speed1s1s1sSlow, 1 Min0.05s0.1s
ReliabilityHighMiddleLowHighMiddleMiddle
WeightMiddleHeavysmallVery heavysmallsmaller
DimensionsmallLargeMiddleHugesmallersmallest
Noise

Silent with 

No Noise

Noise when

Voltage regulated

Noise when

Voltage regulated

Continuous NoiseCooling Fan's NoiseCooling Fan's Noise
MaintenanceClean the dust once per 6 monthsClean the dust once per 6 monthsClean the dust once per 6 monthsComplicated    due to OilClean the dust once per 6 monthsClean the dust once per 6 months
ApplicationAll kinds loadAll kinds loadsFamilyIndustrialResidential Load

Residential Load

InstallAnywhereAnywhereAnywhereOutdoor OnlyAnywhereAnywhere
Environmental CleanCleanCleanPollutedCleanClean

How to choose the capacity of the voltage stabilizer:

Principles

The voltage stabilizer and the voltage regulator are chosen according to the current:

1 Continuous working current is smaller than the rated current of the voltage stabilizer or voltage regulator, Better to have a design margin of 20%.

 

2 The loads start current is smaller than 5 times of rated current of the servo voltage stabilizer with the roller brush and columnar transformer. or 2.5 times the servo voltage stabilizer with a flat brush, 2 times the static voltage stabilizer. 


How to choose the capacity of the voltage stabilizer:

Loads Rated current:

Single phase:

Rated current In=Pn/(Vn*cosφ)

Three phase:

Rated current In= Pn/(1.732*Vn*cosφ

 

Note:

Pn — Load capacity(kW),

Vn — Rated voltage(V), Tt is Line to Line voltage in three phase system

Cosφ — Power factor. 


How to choose the capacity of the voltage stabilizer:

Loads surge current:

Three phase(Motors):

1 Direct start: I(tmax)= In total + In(max)*6

2 Autotransformer start: I(tmax)= In total + In(max)*3

3 Star-Delta start:  I(tmax)= In total + In(max)*3

4 Variable Frequency start:  I(tmax)= In total + In(max)*2

5 Soft start: I(tmax)= In total + In(max)*3

 

Note:

I(tmax)— The max start current.

In total — The total rated currents of the loads

In(max)— The max starting current of the motor.

 

 

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