Detailed Product Description

1. The installation,commissioning and maintenance is simple

2.High-high voltage frequency converter can output 6kv,10kv directly and does not need output transformer

3.High input power factor, less current harmonic and doesn't need power factor compensation/hamonic suppression devices

4. Outputs ladder sine PWA waveform, does not need filter devices and does no harm to cable and dynamo insulation,small amount of dynamo harmonic, reduces the mechanical vibration of vearings and leaves, the lengh of output line si up to 1,000 meters.

5.The input voltage range is from +15% to 20%,when the power grid is power off completely for about 100 ms,it will be able to work as ususl.Perfect protection and self-diagnostic features:over-voltage protection,phase-lacking protection, over-current protection,voltage-lacking protection,overheating of the power device protection, overheating of the transformers protection,motor overload,current protection,load-device watching protection etc. when failure occurs, the annunciator will send out sound and light alarming signals and it will show the reason and the place of the fault.

6.AVR automatic voltage adjustment function:according to voltage feedback the converter automatically adjust the output voltage to free it from effecting by power grid voltage and load changement, and protect the dynamo from insulation injury that cauesed by long-term high voltage or overheating core caused by high magnetic density.

7.Built-in all-digital PID; have a closed-loop test according to the user's requirements in order to achieve constant temperature and constant current operation;PID parameters are adjustable online.

8.Unique switching structure: frequency converter inputs and outputs using unique trolley-style switching structure;it is easily to pull out the trolleys when inspecting and maintaining the converter; it may make the converter depart from the power grids and motor completely to ensure that the converter can deal with maintenance work in a safe way; it greatly facilitate the use and maintenance of the converter.

9.Given ways of four frequency:directly given through main interface; given by using analog signals(such ans the potentionmeters,4-20 mA current signal); given gy host computer through RS 485 port; when operating in closed-loop, automatically given through calculating by build-in PID.