CHINT/CHINT NVF5-GS series inverter has a maximum power of 45KW

Introduction: NVF5-GS series water supply inverter is a small size, cost-effective water supply inverter tailored by CHINT for the water supply industry. The product supports fixed frequency conversion mode, cyclic frequency conversion mode, soft stop and emergency stop function, overpressure protection function, sleep function, sleep pump control function, inlet pool water level control function, sewage function, fire mode and other functions. In addition to the above functions, it also has the functions of timing rotation, regular daily timing giving function, designated day timing giving function, fire inspection and other functions, and can control up to 9 pumps at the same time (fixed frequency conversion mode).

CHINT/CHINT NVF5-GS series inverter has a maximum power of 45KW

peculiarity

1. Wide voltage design: three-phase 380-440V: 380V(-15%)-440V(+15%).

Power range: 1.5KW-45KW

2. Multi-pump control: fixed frequency conversion mode and circulating frequency conversion mode, up to 1 variable frequency pump + 8 power frequency pumps or 3 variable frequency pumps of the water supply system.

3. Measures to deal with instantaneous power failure: instantaneous stop function, when the system has a power failure, the inverter makes the motor in a state of power generation, so that the bus is electrified

The voltage is maintained at the instantaneous power failure action to judge the voltage, and the inverter is prevented from stopping due to the undervoltage fault caused by the short-term input voltage cut-off.

4. High environmental adaptability: optional protection kit to achieve IP22 enclosure (NVF5-1.5GS - NVF5-7.5GS).

5. Obvious power saving: adjust the speed according to the water supply system, always run in the high-efficiency area, when the system flow rate is low, the inverter sleeps, and the flow rate

After the increase exceeds the set value, the inverter wakes up, and the power saving is obvious, which can save 20%-55% more power than the power frequency constant speed water pump.

Product parameters

input

Voltage range: three-phase 380 - 440 V: 380 V (-15%) - 440 V (+15%)

Frequency range: (47-63)Hz

output

Voltage: 0—Rated input voltage

Frequency: (0-400)Hz

Overload capacity: 120% rated current for 1 minute, 150% rated current for 3 seconds

The main control performance

Control mode: SVC control (no PG vector control), V/F control

Starting torque: SVC control: 150% rated torque at 0.5Hz; V/F control: 1Hz, 100% rated torque

Carrier frequency: 1kHz - 15kHz

Speed control ratio: SVC control: 1:100, V/F: 1:50

Speed control accuracy: ±0.5% of the maximum speed

Frequency Resolution: Digital Setting: 0.01Hz, Analog Setting: Maximum Frequency×0.5%

V/F curves: (linear, multi-point) V/F curves; (2, 1.7, 1.2, ) power drop torque curve

Acceleration and deceleration curves: 4 kinds of linear acceleration and deceleration, S-curve acceleration and deceleration

Basic functions: over-velocity protection, over-voltage stall protection, torque limiting, speed tracking, simple PLC, process PID, multi-stage speed control, slip automatic compensation, automatic torque lifting, pre-excitation function, instantaneous stop non-stop function

Special functions for water supply: built-in real-time clock function, fixed frequency conversion mode, cyclic frequency conversion mode, fault rotation function, shutdown function, timing rotation function, overpressure protection function, sleep function, sleep pump control function, inlet pool water level control function, sewage discharge function, regular day timing given function, designated day timing given function, fire inspection function, fire mode function

Peripheral interfaces

Digital inputs: 4 multi-function digital programmable inputs (standard); 1 high-speed pulse input terminal (NVF5-11GS - NVF5-45GS)

Digital output: 1 multi-function digital programmable output (up to 100kHz) (NVF5-11GS - NVF5-45GS)

Analog input: 2 analog signal inputs, optional (0-20)mA, (4-20)mA current signal input or (-10-+10)V, voltage signal input (NVF5-1.5GS-NVF5-7.5GS AI2 current type needs to be customized)

Analog output: 1 analog signal output, (0-20) mA, (4-20) mA current signal output or (0-10) V voltage signal output can be selected respectively

Relay output: 2 relay outputs, 1 normally open and normally closed, 1 normally open. Contact Capacity: NO 5A /NC 3A 250V (AC)

Communication interface: standard RS485 communication, expandable with a variety of communication protocols, external remote operation panel;

Braking function: NVF5-1.5GS - NVF5-2.2GS optional built-in braking unit, NVF5-3.7GS - NVF5-45GS standard built-in braking unit

Operation panel: display more than 20 parameters such as set frequency, output frequency, output voltage, output current, etc

Expansion card for water supply (optional): 6-way normally open relay, contact capacity: NO 5A 250V (AC)

Protection function: over-current protection, over-voltage protection, under-voltage protection, over-temperature protection, overload protection, input phase loss protection, output phase loss protection, load loss protection, motor short-circuit protection to ground,

Pipeline overpressure protection, relay action fault protection and other protection functions

Applicable environment

Place of use: indoor, not exposed to direct sunlight, no dust, corrosive gas, flammable gas, oil mist, water vapor, dripping water or salt

Altitude: normal use below 1000 meters; For derating above 1000 meters, 10% of the rated power will be derated for every 1000 meters, but not more than 3000 meters

Ambient temperature: (-10-+45) °C (ambient temperature at (45-50) °C, derating 1% for every 1 °C)

Humidity: (5-95)%RH, no condensation of water beads

Vibration: Vibration acceleration ≤ 5.8m/s²

Storage temperature: (-40-+70)°C

structure

Protection level: IP20 as standard, NVF5-1.5GS - NVF5-7.5GS can reach IP22 after optional protection kit

Cooling method: fan cooling

Material: NVF5-1.5GS - NVF5-22GS molded case structure; NVF3-30GS - NVF5-45GS metal shell structure

Installation: ≤ 2.2kW rail and wall mounting, > 2.2kW wall mounting

We will provide customers with high-quality products and satisfactory services with honest and trustworthy, convenient and fast business methods and strict management.

This article introduces CHINT/CHINT NVF5-GS series inverter with maximum power of 45KW products, if you are interested in CHINT/CHINT inverter, please also contact our customer service, we are looking forward to your call, hope our technology and service can bring you a better experience.

CHINT/CHINT NVF5-GS series inverter has a maximum power of 45KW

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