Variable Frequency Inverter Motor VFD Drives for Fans and Pumps

Variable Frequency Inverter Motor VFD Drives for Fans and Pumps

Negotiable /Piece

Min.Order:1 Piece

Supply Ability:
0 Piece / Pieces per Month
Payment Terms:
T/T L/C D/P D/A
Delivery Detail:
7 days

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Brand Name:
GANDO
Place of Origin:
China
Model Number:
380V-P5-__KW

GANDO INTERNATIONAL (HONGKONG) LIMITED

Business Type: Trading Company
Xiamen Fujian China
Main Products: AC Inverter Drives , Vector Control AC Drives , Frequency Inverter Drives , Sensorless Vector Drive

Product Details

Delivery Time:2 days
Certification:CE

Variable Frequency Inverter Motor VFD Drives for Fans and Pumps

A cooling tower extracts heat from process cooling water. Common applications for cooling towers provide cooled water for air conditioning, manufacturing, and electric power generation.
A variable frequency drive can correctly identify the cooling tower fan rotation, slow the motor speed to zero (when opposite rotation is detected), and accelerate the fan in the correct direction. The VFD drive eliminates brakes, anti-ratcheting devices, and time delays. Running the fan slower, which raises tower and water temperatures, can prevent icing in cold weather. A VFD can reverse a cooling tower fan and keep the heat in the tower, if necessary. In warm weather, fans can be run faster, providing additional cooling capacity.

Application Challenges

Energy savings Reduce maintenance requirements (personnel and equipment replacement costs) Precisely control process water temperature stabilization

Features of P5 series cooling tower fan application

Features

Benefits

Dual digital tube

Double lines of LED display, monitoring 2 kinds of information meantime, like frequency, current, voltage, speed and PID data.

Smart restart

Instant power off continue running and speed tracking

S curve acceleration/deceleration mode

S curve acceleration/deceleration can reduce impact to the machine at start/stop time, and suitable for the start/stop process for loads of handling and transmission categories.

 

Power range of P5 VFD

Voltage: 3 phase 380VAC(323VAC – 440VAC)

Power: 18.5kw/25HP – 400kw/535HP

Specification of P5 VFD

Item

Specification

Input frequency

50/60Hz

Output frequency

0-120Hz

Overload current

120% rated current 1min.,  130% 6 sec.

Control mode

V/F control

Brake torque

125% with additional brake resistor

Set frequency resolution

digital  command  0.01Hz; 

analogue  command  0.1Hz/60Hz

Voltage/Frequency feature

34 fixed V/F features selectable,  any V/F features can be set

Running Mode 

Keyboard,  control terminal,  RS485 

Output Voltage self-adjustment 

When AVR function is enabled, the input voltage changes, while the output voltage almost remains unchanged

Frequency setting signal

0-10V,  0-5V,  4-20mA,  0-20mA

Protection function

Over voltage, under voltage, current limit, over current, overload, electronic thermal relay, overheat, over voltage stalling, data protection, under load precaution, loaded short circuit

Enclosure

IP10

Cooling mode

forced air cooling

Vibration

Less than 0.5g 

Ambient temperature / Humidity

-10 Degrees~+40 Degrees / 20~90%Rh (no condensation)

Tips:

A variable-frequency drive (VFD) is a system for controlling the rotational speed of an alternating current (AC) electric motor by controlling the frequency of the electrical power supplied to the motor. A variable frequency drive is a specific type of adjustable-speed drive. Variable-frequency drives are also known as adjustable-frequency drives (AFD), variable-speed drives (VSD), AC drives, microdrives or inverter drives. Since the voltage is vari

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