Tel: 18037961302
Sales hot line ( 24 hours  service): 18037961302



Adress: Luoxin Industrial Park, Luoyang, Henan
  • Products
  • smelting equipment

    steel smelting furnace

    Small casting furnace

    Small steel melting furnace

    small induction melting furnac

    Mini induction furnace

    Copper melting furnace

    Copper melting electromagnetic

    scrap copper melting induction

    Electromagnetic copper melting

    Aluminum melting medium freque

    Electromagnetic melting alumin

    Aluminum induction furnace

    scrap aluminum melting inducti

    500KG electromagnetic melting

    300kg electromagnetic melting

    Steel induction furnace

    Induction furnace steelmaking

    5T Steel Melting Inductio

     3T Steel Melting In

    2T steel melting induction fur

    1T Steel Melting Inductio

     1T Steel Melting In

    0.25T steel melting induc

    0.5T steel melting induct

    Steel melting furnace

     Cast Iron Furnace

    iron melting furnace

    Electric furnace repair

     Symptom: Nothing happens when the device starts up. After observation, the phase loss indicator on the control circuit board is on.

        Cause of failure: The fast fuse is blown. Generally, the fast-blow fuse has a blown indication. It can be judged whether the fuse is burnt out by observing its indication. However, sometimes the fast-fuse is used for too long or the quality is not indicated or the indication is unclear. It needs to be powered off or measured with a multimeter. .

        The treatment method is: replace the fast fuse and analyze the cause of the blow. There are four reasons why a fast fuse is generally blown:

        a. The equipment runs under the conditions of long time, high power and high current, causing the fast fuse to heat up, so that the fuse is hot melted;

        b. The rectified load or the intermediate frequency load is short-circuited, causing instantaneous large current surge, burning the fast fuse and checking its load circuit;

        c. The rectifier control circuit fault causes instantaneous large current surge, and the rectifier circuit should be inspected;

        d. If the contact of the main switch is burnt out or the front-end power supply system has a phase loss fault, measure the line voltage of each stage with the AC voltage of the multimeter to judge the fault position.

    Copyright© 2007-2013 songdao Electric furnace manufacturing Co,.Ltd All Rights Reserved
    Tel:18037961302 Sales hot line ( 24 hours service): 18037961302
    Adress: Luoxin Industrial Park, Luoyang, Henan