SCR Phase-shift Triggers

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JKH-D3 Intelligent Three-Phase SCR Phase-Shift Trigger/Voltage Regulator

The JKH-D3 intelligent three-phase SCR phase-shift trigger/voltage regulator uses advanced microprocessor technology based on the LU-906 intelligent controller, with multiple built-in input specifications, dual digital display plus bar graph, and keypad operation. It suits constant-voltage or constant-current charging, electroplating, electrolysis and DC motor speed control. Wiring is simple with no phase sequence concerns, and reliable overcurrent protection prevents controller damage even if t

CategorySCR Phase-shift Triggers
Model-
Views7934 views
Updated2011-11-25

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I. Product introduction

    The JKH-D3 intelligent three-phase SCR phase-shift trigger/voltage regulator adopts advanced microprocessor technology and is based on the LU-906 intelligent controller, with multiple built-in input specifications, dual digital display plus light bar, and keypad operation. It is suitable for constant-voltage or constant-current charging, electroplating, electrolysis, DC motor speed control, etc. Wiring is simple and the phase sequence need not be considered. Reliable overcurrent protection ensures that damage to the SCRs in the main circuit will not cause damage to the controller; even if the trigger wires are connected incorrectly, the controller will not be damaged within a short period.
    The JKH-D3 intelligent three-phase SCR phase-shift trigger/voltage regulator is panel-mounted with bumpless manual/automatic switching and dynamic light-bar indication of the output level, making operation convenient. The output range is freely settable to suit heating elements such as silicon carbide rods and molybdenum rods. It has a soft-start function with freely settable soft-start time, can provide upper and lower limit alarm outputs, and can provide RS232/RS485 communication.
    The JKH-D3 is suitable for star or delta connection in three-phase three-wire systems, and also for three-phase or single-phase half-controlled rectification.

II. Main technical specifications

●Input specifications:    0-10mA, 4-20mA, 1-5V or 0-5V
●Output specifications:    three-phase three-wire trigger
●Phase-shift range:    0-180
●Trigger capacity:    ≤800A, two antiparallel unidirectional SCRs or SCR antiparallel with a diode
●Power supply voltage:    85-264VAC

III. Dimensions and mounting dimensions

A: Dimensions 96×96×115mm (H×W×D)
B: Cutout 92×92mm (H×W)

Note:

1. If the transmitter output is a 0-10mA or 4-20mA current signal, simply connect a 250Ω precision resistor in parallel across the "+,-" input terminals;
2. The JKH-D3 is polarity-sensitive and requires the correct phase sequence.