JNTECH dV/dt Filter for 22kW–55kW Solar Pump Inverters/VFDs – Motor Protection

JNTECH dV/dt Filter for 22kW–55kW Solar Pump Inverters/VFDs

The JNTECH dV/dt Filter for 22kW–55kW Solar Pump Inverters/VFDs is designed to provide additional protection for high-power three-phase water pump motors, particularly in installations with long cable distances between the inverter and pump motor.

Installed on the output side of the JNTECH solar pump inverter/VFD, the dV/dt filter helps reduce rapid voltage rise (dV/dt), high-frequency voltage spikes and electrical stress associated with PWM inverter output. This helps protect motor winding insulation and submersible pump motors, supporting reliable operation in demanding water pumping applications.

Compatible Inverter Range

22kW | 30kW | 37kW | 45kW | 55kW JNTECH Solar Pump Inverters/VFDs

Key Features

• Compatible with JNTECH 22kW–55kW Solar Pump Inverters/VFDs
• Helps reduce high dV/dt voltage stress
• Helps suppress voltage spikes at pump motor terminals
• Provides additional protection for motor winding insulation
• Recommended for installations with long inverter-to-motor cable runs
• Helps reduce electrical stress on high-power submersible motors
• Suitable for three-phase water pumping systems
• Ideal for deep tube-well and bore-well installations
• Suitable for heavy-duty agricultural and commercial applications
• Designed for integration with compatible JNTECH solar pumping systems

Applications

Ideal for:

• High-power submersible water pumps
• Deep tube wells
• Agricultural irrigation systems
• Bore-well pumping systems
• Large solar water pumping projects
• Commercial water supply systems
• Industrial water pumping
• Long inverter-to-motor cable installations

Installation

JNTECH Solar Pump Inverter/VFD → dV/dt Filter → Pump Motor

The dV/dt filter should be properly selected according to the inverter power, motor rating, operating voltage, rated output current and motor cable length.

Why Use a JNTECH dV/dt Filter?

Long motor cables combined with the fast-switching PWM output of a VFD can increase voltage stress at the motor terminals. A properly selected JNTECH dV/dt Filter helps reduce these effects and provides additional protection for the pump motor and its insulation system.

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