SKB Fully Automatic Variable Frequency Speed Control Panel

I. Product Overview

The SKB series variable-frequency water supply control cabinet is an intelligent control unit developed by Shanghai Shenyin Pump Industry Co., Ltd. specifically for constant-pressure water supply systems. Utilizing advanced variable-frequency speed regulation and automatic control technologies, it monitors pipeline network pressure in real-time and automatically adjusts pump operating frequencies to achieve constant-pressure supply, energy-efficient operation, and unattended control.

The system automatically adjusts pump speed and the number of active pumps based on actual water demand, maintaining stable supply pressure. This effectively avoids issues common to traditional water supply methods, such as frequent start-stop cycles, water hammer effects, significant pressure fluctuations, and high energy consumption.

SKB series control cabinets are widely used in automatic water supply systems for residential complexes, high-rise buildings, hotels, schools, hospitals, factories, municipal water supply, industrial circulating water supply, and non-negative pressure water supply equipment.

II. Product Features

Constant-Pressure Water Supply

Uses pressure sensors to monitor network pressure in real-time and automatically adjusts the variable-frequency drive (VFD) output frequency to maintain constant supply pressure.

Features include:

Stable pressure,

Excellent user experience,

High water supply quality, and

Strong automatic adjustment capabilities.

Focus on Operational Efficiency and Energy Saving

Automatically adjusts pump speed based on actual water demand:

Lowers frequency during low demand;

Increases frequency during high demand;

Automatically cycles through pump units;

Effectively reduces energy consumption compared to traditional fixed-frequency (mains-frequency) systems.

Actual energy savings depend on site conditions, control strategies, and usage parameters.

Fully Automatic, Unattended Operation

The system enables:

Automatic pump start and stop,

Automatic pump rotation,

Automatic switchover to standby pumps, and

Automatic fault handling,

Significantly reducing the need for manual supervision.

Multi-Pump Coordinated Control

Supports:

Single-pump VFD control,

Dual-pump VFD control,

Multi-pump cyclic control,

Configurations such as "one-duty/one-standby," "two-duty/one-standby," and "multi-duty/one-standby,"

Meeting the requirements of various water supply systems. Comprehensive Protection Functions

Equipped with multiple safety protections:

Phase loss protection,

Overload protection,

Overcurrent protection,

Overvoltage protection,

Undervoltage protection,

Short-circuit protection,

Pump fault alarm,

Sensor fault alarm,

Ensuring long-term, stable equipment operation.

Intelligent Alternating Operation

The system automatically records pump running time.

Enables:

Scheduled rotation,

Fault-based switchover,

Automatic balancing of running time,

Extension of pump service life.

Touchscreen & Remote Monitoring (Optional)

Optional features:

Color touchscreen,

PLC control system,

RS485 communication,

Modbus communication,

IoT remote monitoring platform,

Mobile app monitoring.

Enables remote viewing of:

Pressure,

Frequency,

Current,

Voltage,

Operating status,

Fault information.

III. Product Advantages

Helps reduce energy consumption,

Stable water supply pressure,

Extends equipment lifespan,

High level of automation,

Low maintenance costs,

Wide range of applications.

IV. Scope of Application

SKB series variable frequency water supply control panels are widely used in:

High-rise residential complexes,

Commercial complexes,

Hotels,

Hospitals and schools,

Industrial plants,

Industrial and mining enterprises,

Municipal water supply projects,

Non-negative pressure water supply equipment,

Constant pressure water supply systems,

Cooling circulation systems,

Industrial circulating water supply systems.