90KW pump variable frequency start control cabinet

Parameter Name	Parameter Value
Rated Power	90KW
Input Voltage	380V ± 10%
Input Frequency	50Hz ± 5%
Input Current	Approximately 170A
Output Voltage Range	0 - 380V
Output Frequency Range	0 - 400Hz
Output Current	170A
Frequency Control Precision	±0.01Hz
Voltage Control Precision	±1% of rated voltage
Protection Functions	Over - current protection, over - voltage protection, under - voltage protection, over - heat protection, short - circuit protection
Communication Interface	RS485, supporting Modbus protocol
Operating Temperature	- 10℃ to 40℃
Storage Temperature	- 20℃ to 60℃
Humidity	5% - 95%RH (non - condensing)
Protection Level	IP54
Mounting Method	Wall - mounted or Floor - mounted
Compatible Motor Type	Three - phase asynchronous motor

Motor frequency conversion starting cabinet

1. Power Parameters

• Rated Power: 90KW, which indicates the maximum power that the control cabinet can handle to drive the motor.
• Input Voltage: Usually, it is 380V ± 10% for three-phase input. This voltage range allows the control cabinet to adapt to certain voltage fluctuations in the power grid.
• Input Frequency: Commonly 50Hz ± 5% or 60Hz ± 5%, depending on the regional power grid frequency.
• Input Current: Approximately 170A under rated power conditions. This value may vary slightly according to the actual load and power factor.
• Output Voltage Range: 0 - 380V, which can be adjusted according to the frequency variation to meet the requirements of different motor speeds.
• Output Frequency Range: Typically 0 - 400Hz, enabling a wide range of speed regulation for the motor.

2. Control Precision Parameters

• Frequency Control Precision: ±0.01Hz. This high precision ensures accurate adjustment of the motor speed, which is crucial for applications that require stable speed control.
• Voltage Control Precision: ±1% of the rated voltage. It helps maintain a stable output voltage and protect the motor from voltage fluctuations.

3. Protection Parameters

• Overcurrent Protection: Set at about 1.2 - 1.5 times the rated current. When the current exceeds this value, the control cabinet will take protective actions, such as cutting off the power supply, to prevent damage to the motor and the control cabinet itself.
• Overvoltage Protection: Activated when the input or output voltage exceeds a certain threshold, usually around 110% of the rated voltage, to safeguard the electrical components.
• Undervoltage Protection: Triggers when the voltage drops below a specific level, generally around 85% of the rated voltage, to avoid abnormal operation of the motor.
• Overheat Protection: Monitors the temperature of key components, such as the inverter module and the motor. When the temperature reaches a preset value (e.g., 130℃ - 150℃ for the motor), the control cabinet will stop working to prevent overheating damage.
• Short Circuit Protection: Quickly responds to short circuit faults in the circuit to isolate the fault point and protect the entire system.

◦ Undervoltage protection action value: Generally set to 70%-85% of the rated voltage. When the power supply voltage is lower than this value, the starting cabinet will trigger the undervoltage protection to prevent the motor from being damaged due to too low voltage.

About The Drawing

We have a team of experienced professionals who are responsible for carefully drawing the design drawings for every detail. To ensure that technicians can easily access key information, we have equipped each distribution cabinet with detailed drawings. These drawings are not only convenient for technicians to consult at any time, but also ensure accuracy and efficiency during operation and maintenance.

----After-sales service:

Provide comprehensive pre-sales consulting and program design services.
Provide free repair or replacement service for faults caused by product quality problems during the product warranty period.
Provide lifelong technical support and after-sales service to ensure that customers have no worries.

Sichuan Jinhuili Electric Co., Ltd. is specialized in distribution automation, power quality, energy efficiency management of the main products and services; The products include high and low voltage power distribution equipment, uninterruptible UPS power supply, emergency power supply, DC power supply, complete sets of intelligent control equipment, solar photovoltaic power generation, energy storage management, operation and maintenance and other comprehensive automation.

The company is located in Chengdu, Sichuan Province, China, covers an area of more than 10,000 square meters, has a large number of outstanding management personnel, senior engineers and power professional and technical personnel, has been awarded by the government and departments "civilized private enterprise", advanced private enterprise, scientific and technological innovation enterprise, contract-respecting, trustworthy units and other honorary titles.