Medium/High Voltage Frequency Inverter/Drive By Shanghai STEP Electric Corporation,

Product Specification

Brand Name: STEP
Output Power: 801 - 1000KW
Output Type: Multiple
Type: DC/AC Inverters
Output Frequency: 0.5%

Product Description

Product introduction
AS**0 high-voltage frequency converter is a kind of high-voltage frequency conversion governor, featuring on energy saving and environmental protection, using the linernational sophisticated power electronic technology and vector control technique. It not only owns outstanding control performance, but also integrates with application characteristics in China, to further strengthen the reliability of the product and environmental adaptability as well as customized and industrialized design, which better meet a wide range of applications in coal mining, cement, thermal power, petroleum, rubber, metal, chemical, paper making industries, etc.
FEATURES
Flexible closed-loop control
The method of vector control without sensor control the speed stably.
For accurate speed control or greater starting torque, select the closed-loop vector control with sensor
High-grade load of power supply
The secondary winding of the transformer with multiple reduces the pollution to power supply by higher harmonic current, conforming to the strictest IEEE **9 standard
It is a real sense of Perfect Harmony series of frequency converter, which inherently provides a sinusoidal output without the use of external output filters and power factor compensation.
The quality drive of motor
Multi-level PWM control mode, providing sine wave output current
Small common mode voltage and DV/dt, without special requirements for motor and cables, modifying the aging equipments without replacing the motor.
Ideal mechanical power
The upper harmonics of output current is minute and the effect of the torque pulsations to shaft system can be ignored
High efficiency
Output current is sine wave basically, reducing the upper harmonics loss of motor.
The upper harmonics in the transformer primary is low and the system efficiency is above *7%
Output transformer is not required, eliminating the loss hereof
Multi-level PWM control, reduce the loss of IGBT high frequency switch
High power
Use diode full-bridge rectification, the power factor may be up to *5%above without power factor compensation
High reliability
IGBT inverter: Adopt ***0V high-voltage IGBT, reduce the number of components, and improve the reliability of system
Strong anti-interference: The control system is isolated ffrom the power units by optical fibers, safe and reliable
Powerful self-diagnostic capability: Precise and timely pre-warning protection for various unexpected events in the system
Energy saving
Soft startup of inverter, greatly reducing the starting current of motor.
Variable speed drive for variable torque load of fan, pump, etc., saving the energy excessively.

Input	Range of drive capacity	*****0kw/*****0KVA
	Input line voltage	3.0/6.0/*0.0kv
	Permissible error of voltage	At rated output, +/**5% of nominal value
	Input power factor	0.5, if exceeding 0% of load
Output	Output line voltage	3.0/6.0/*0.0KV
	Output frequency drift	+/*0.5%
	Output frequency resolution	0.*1HZ
Control parameters	Range of speed	0.**0hz(related to motor), 0~0HZ under vector control
	Overload capacity	VF control: *0%, 0s; 0%, 5s; 0%, protected immediately Vector control: *0% 0s; *0% 0s; 0% 3s; Special motor: 0% 0s; *0% 3s(according to customer’ s design requirements)
	Control mode	VF control, speed sensorless vector control, or speed sensor vector control, restart after stop(0.3~6s)
	Control accuracy	+/*0.5% of maximum frequency
	Load torque characteristic	Square torque load, constant torque load
Control parameters	Acceleration/deceleration time	VF control: 1~*0s; vector control: 0.5~*0s(related to load inertia characteristic)
	Signal /output	-way analog , -way analog output, *6 digital s, 8digital outputs(may be expanded according to user’ s demand)
	Major control functions	Soft startup, instantaneous power down control without stopping, curve acceleration control, power frequency synchronous switching(optional), jumping frequency, rotating speeed track, accumulated operating time display, automatic voltage regulation
	Major protection functions	Overcurrent limit, overcurrent, overvoltage, undervoltage, power unit fault, cooling fan abnormality, grounding fault, etc.
	Communication(optional)	Optical fiber, devicenet, profibus-dp, modbus, Ethernet, etc
display		OLED manipulator, LCD touch screen(optional)
Input transformer		H-grade insulation

Country:	China
Model No:	AS800
FOB Price:	(Negotiable) Get Latest Price
Place of Origin:	-
Price for Minimum Order:	-
Minimum Order Quantity:	-
Packaging Detail:	-
Delivery Time:	-
Supplying Ability:	-
Payment Type:	T/T, L/C
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