Lovato DCRK7 Digital Power Factor Controller | 7-Step PFC Relay | 380–415 VAC

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The Lovato DCRK7 is a professional digital power factor controller designed for automatic reactive power compensation (PFC) in low-voltage electrical systems. It is used to control capacitor banks in order to maintain an optimal cosφ (power factor), reduce reactive energy penalties, and improve overall electrical efficiency.

Based on the provided images, this unit is a 7-step controller, suitable for small to medium capacitor banks. It features a clear LED display, intuitive front-panel navigation, and automatic or manual operation modes. The controller continuously measures system parameters and switches capacitor steps accordingly to avoid under- or over-compensation.

The rear panel provides clearly labeled relay outputs, current transformer (CT) input, auxiliary supply, and TTL/RS232 communication port, making integration into compensation panels straightforward.

Key Features:

• Digital power factor (cosφ) controller

• 7 relay outputs for capacitor step control

• Automatic and manual operating modes

• Real-time monitoring of electrical parameters

• LED display with status indicators

• Built-in alarm management

• Designed for panel mounting in PFC cabinets

Measured & Monitored Parameters:

• Voltage (V)

• Current (A) (via CT input)

• Reactive power (kvar)

• Power factor (cosφ)

• System temperature

• Capacitor step status

Alarm Functions :

• Under-compensation

• Over-compensation

• Low current

• High current

• Low voltage

• High voltage

• Capacitor overload

• Overtemperature

• No-voltage release

Technical Specifications :

• Model: DCRK7

• Type: Digital Power Factor Controller

• Number of Steps: 7

• Auxiliary Supply: 380 / 415 VAC

• Frequency: 50 / 60 Hz

• Relay Rating: 250 VAC, 5 A (AC-1)

• Max Common Relay Current: 12 A

• CT Input: 5 A AC

• Communication: TTL / RS232

• Mounting: Panel mount

• Operating Modes: Automatic / Manual

Typical Applications:

• Automatic capacitor banks

• Reactive power compensation panels

• Industrial and commercial electrical systems

• Energy efficiency optimization

• Power quality improvement