Soft Starter Synchronous Frequency Converting Soft Starting Device

China 
                Soft Starter Synchronous Frequency Converting Soft Starting Device
              manufacture and supplier

Soft Starter Synchronous Frequency Converting Soft Starting Device image

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Basic Info.

Model NO.
SFC

Trademark
VILLE

Origin
Ningbo China

HS Code
85

Product Description

1.Application range

AC synchronous motor is widely used in large oil gas transport, marine propulsion, pumped storage, defense wind tunnel test and other industrial large power conditions. Especially in steel industry, it is widely used in large blast furnace blower, gas power generation coal gas compressor, oxygen production compressor and other main production equipment.

2.Performance

2.1 Product parameters 

Starting time: 0-200 configurable

Output voltage: 0-motor rated voltage

Ouput current: less than 40% motor rated current

Main circuit topology: adopting single circuit, double circuits, 6,12,24 pulse rectification

Cooling method: heat pipe + forced air cooling

Applicable power range: 5-150MW synchronous motor

Load type: blast furnace fan, centrifugal fan, compressor, pump, turbine and so on.

Applicable voltage level: 6kV, 10kV and so on.

Main power components: thyristor 6500V voltage withstand, 300-3000A current optional

2.2 Features

2.2.1 starting capacity less than motor rated capacity, starting current less than motor rated current, can provide perfect solution for synchronous motor in strict power grid situations.

2.2.2 starting process adopts double closed-loop PID control, together with constant magnetic algorithm, ensures precise and controllable speed, smooth start of motor, avoids motor unit’s point of resonance.

2.2.3 simple to use, position sensor not required, with patented algorithm the software can realize rotor position detection.

2.2.4 provides different starting curves for different loads, especially for large pump storage motor, gas generator, blast furnace blower fan and other devices.

2.2.5 adopts high-low-high control scheme which is same to Siemens, realizes not only new motor start, but also localization products replacement and reform of old system.

2.2.6 adopts large LCD screen, can realize visual information interaction before and during starting process, convenient to use and inspect.  

2.2.7 variable optional starting mode, can realize all synchronous start in static condition, turning condition and speed condition.

2.2.8 super large storage space for history starting data and fault record date, can meet user’s 30 days information query demands. Larger space design available for specified demands.

2.2.9 integrated structure. User only need to provide secondary power source, excitation interlock and primary in-outcome line, which ensures the installation only needs half a day.

2.3 technical innovations

2.3.1 control unit adopts DPS+FPGA scheme, have both DPS software’s flexibility and FPGA hardware’s high-speed.

2.3.2 adopts DC pulsant technology in low speed mode, periodically reduce the DC link current to zero, to realize converter reversing.

2.3.3 the converter adopts load inductive potential auto reverse mode.

2.3.4 synchronous connection adopts software computing, its control algorithm ensures there will be no current impact during synchronization and the synchronization time will be short.

7. Ordering instructions

User should prove following parameters before ordering:

7.1 Ordered soft starter type;

7.2 Motor rated parameters including power, stator voltage, stator current;

7.3 Excitation mode, excitation rated parameters, whether excitation cabinet is     required;

7.4 Load type;

7.5 Cabinet color (company standard or specified);

7.6 System drive requirements and site use conditions.

8. Product case

Product name: HV synchronous frequency converting soft stater (load commutation current type)

Type: SFC-50000/10

Manufacturer: Big Pawer electrical technology Xiangyang Inc. Co., Ltd.

Application company: Wuhan iron and steel group Co., Ltd.

Site: Wuhan iron and steel group Co. Ltd. Energy power plant No. 2 blower station

Motor parameters:

Type: 1DM4035-8DE01-Z

Rated power: 40000 kW

Rated voltage: 10 kV

Rated current: 2630 A

Power factor: 0.85 advance

Excitation parameters: 190V. 640A

Rated speed: 3000 r/min

Manufacturer: Siemens

Centrifugal type axial flow blower

Type: AG120-16RL6

Manufacturer: German MAN-GHH company

 
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