Products Overview

The JJR 8000 series exemplifies advanced motor control, with models such as the 11kW soft starter integrating state-of-the-art electronics, microprocessor technology, and modern control principles. This design effectively manages and optimizes the electrical characteristics during the start-up of asynchronous motors.

Description of Product Type

medel description

Core Advantages

Advanced Starting Management

Employs intelligent algorithms to provide smooth, controlled acceleration, significantly reducing mechanical stress on driven equipment and electrical stress on the power supply network during startup.

Broad Application Scope

Ideally suited for controlling the starting sequence of heavy-duty machinery commonly found in industrial settings, including fans, pumps, conveyors, and compressors.

Modern Replacement

This soft starter stands as a superior modern alternative to conventional electromechanical starting methods-such as star-delta, autotransformer, or magnetron starters-offering enhanced precision, reliability, and system integration.

Key Features

Configuration & Setup

Load-Adaptive Programming: Parameters are easily configured by selecting the predefined load profile.
Multiple Parameter Sets: Three independent sets of starting parameters can be stored, allowing one starter to optimally control motors of varying power ratings under different conditions.

Control & Start-up Modes

Closed-Loop Control: Utilizes real-time motor feedback voltage to ensure reliable starts across all load and operational conditions.
Flexible Start Methods: Offers voltage-ramp start for maximum torque, current-limit soft start for controlled inrush current, and direct soft start for immediate initiation.
Advanced Scheduling: Supports programmable start delays and interlock control logic for integrated system operation.

Protection & Diagnostics

Comprehensive Safeguards: Includes protection against overcurrent, phase imbalance, overheating, phase loss, and motor overload.
Intelligent Diagnostics: Features a dynamic fault memory for easy tracing and analysis of operational issues, and can automatically identify peak start and run currents.

System Integration

Wiring Flexibility: Has no phase-sequence requirement for the input power supply, simplifying installation.
Network Connectivity: Enables complete remote control, monitoring, and data exchange via fieldbus systems, streamlining wiring and system integration.

Typical Application

The JJR8000 Series Intelligent Soft Starter provides adaptive control solutions for critical motor-driven equipment, addressing specific mechanical and operational challenges across industries to enhance reliability and reduce total cost of ownership.

Application-Specific Benefits:

Pump Systems: Utilizes a controlled soft-stop function to effectively mitigate water hammer effects, protecting pipelines and valves to lower long-term maintenance costs.
Ball Mills: Employs a voltage ramp start to progressively engage the gear train, significantly reducing initial torque shock and gear wear, which minimizes downtime and associated expenses.
Fans & Blowers: Enables smooth acceleration to decrease belt slippage and mechanical stress on couplings and bearings, extending component service life and reducing repair frequency.
Compressors: Achieves a smooth start via current limiting control, lowering the excessive heat generation typically associated with direct-on-line starting, thereby enhancing motor longevity and operational continuity.
Conveyors: Implements a gradual soft-start sequence to ensure smooth material handling from standstill, preventing product spillage, displacement, or liquid surge in process lines.

Working Principal

At the core of the JJR 8000 solid state soft starter, a DSP microprocessor serves as the central processing unit, governing motor start-up sequences and protection protocols. This intelligent control system manages the phase firing to the Silicon-Controlled Rectifiers (SCRs), which in turn modulates the voltage and current supplied to the motor. By progressively building up motor torque until rated speed is achieved, this method drastically curtails the characteristic inrush current and associated mechanical shock. Consequently, it alleviates stress on the electrical supply, the motor windings, and the driven mechanical load, contributing to extended equipment lifespan and enhanced operational reliability.

The starter provides three configurable start-up methods to suit various application needs: Voltage Ramp, Current-Limit, and Torque Control modes, ensuring an optimal and smooth acceleration profile for different load types.

Low Voltage Soft Starter

JJR8000 Low Voltage Soft Starter Selection Table
380/500V(-15%~+10%)50/60Hz(±2%)			Applicable motor rated power
Structure Model	Product Model	Rated Current le (A)	Rated power(KW)
Structure Model	Product Model	Rated Current le (A)	380V	690V	1140V
M0	JJR8000-13-①-V2-②	13	5.5	10
	JJR8000-17-①-V2-②	17	7.5	13
	JJR8000-24-①-V2-②	24	11kW Soft Starter	18.5
	JJR8000-32-①-V2-②	32	15	30
	JJR8000-38-①-V2-②	38	18.5	37
	JJR8000-45-①-V2-②	45	22	45
	JJR8000-60-①-V2-②	60	30	55
	JJR8000-72-①-V2-②	72	37	15
	JJR8000-105-①-V2-②	105	45	90
M1	JJR8000-142-①-V2-②	142	55	110
	JJR8000-170-①-V2-②	145	75	130	220
	JJR8000-220-①-V2-②	220	90	160	270
	JJR8000-250-①-V2-②	250	115	200	350
	JJR8000-290-①-V2-②	290	132	250	400
M2	JJR8000-290-①-V2-②	290	160	315
	JJR8000-360-①-V2-②	360	200	350	600
	JJR8000-450-①-V2-②	450	250	450
	JJR8000-560-①-V2-②	560	320	600
	JJR8000-700-①-V2-②	700	370	670
	JJR8000-450-①-V2-②	450			700
	JJR8000-560-①-V2-②	560			900
	JJR8000-700-①-V2-②	700			1100
M3	JJR8000-800-①-V2-②	800	400	700	1250
	JJR8000-1000-①-V2-②	1000	500	870	1650
	JJR8000-1200-①-V2-②	1200	600	1100	1850
	JJR8000-1400-①-V2-②	1400	700	1250
	JJR8000-1500-①-V2-②	1500	800	1450

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11kW Soft Starter