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Tel: 18037961302
Sales hot line ( 24 hours service): 18037961302
Sales hot line ( 24 hours service): 18037961302
E-Mail: firstfurnace@gmail.com
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Adress: Luoxin Industrial Park, Luoyang, HenanLarge AC Motors Terminal Rings
Medium-frequency welding of mo
Medium-Frequency Brazing Equip
Integral Brazing Process for t
Online Heating Equipment for T
Online Heating Equipment for A
Aluminum ingot heating equipme
Welding Equipment for Traction
Fully Digital Medium Frequency
Motor rotor end ring brazing e
Brazing equipment for hydro ge
Generator rod induction brazin
Hydropower generator stator ba
Large diameter steel pipe quen
Piston rod quenching and tempe
Grinding rod quenching and tem
Electric furnace technical parameters(参数）
Induction melting furnace can not start analysis
Symptom: The device cannot be started. Only the DC current meter has an indication when starting. There is no indication for the DC voltage and the intermediate frequency voltmeter.
Fault analysis and processing are as follows:
1. The inverter trigger pulse has a missing pulse phenomenon. Check the inverter pulse with an oscilloscope (preferably on the G-K of the thyristor). If there is a missing pulse, check if the connection has poor contact or open circuit. Is there any pulse output at the front stage?
2. Inverter thyristor breakdown. Use a multimeter to measure the resistance between A and K. In the absence of cooling water, the value of A-K should be greater than 10K, and the resistance is 0. If there are two damages during the measurement, remove one of the connected copper bars and judge whether one or two are damaged. Replace the thyristor and check the cause of the thyristor damage.
3. Capacitor breakdown. Use the × IK block of the pointer multimeter to measure the capacitance of each column to the common terminal. If there is no indication that the column is broken, remove the damaged capacitor pole.
4. The load has a short circuit and grounding. The resistance of the coil to ground (without cooling water) can be measured with a 1000V megger (shake table), which should be greater than 1MΩ, otherwise the short-circuit point and grounding point should be excluded.
5. The IF signal sampling loop has an open or short circuit. Use an oscilloscope to observe the waveform of each signal sampling point, or use a multimeter to measure the resistance value of each signal sampling loop to find the open or short point. Focus on the intermediate frequency feedback transformer, whether the primary side is open (caused by the snorkeling sensation).
Symptom: The device cannot be started. Only the DC current meter has an indication when starting. There is no indication for the DC voltage and the intermediate frequency voltmeter.
Fault analysis and processing are as follows:
1. The inverter trigger pulse has a missing pulse phenomenon. Check the inverter pulse with an oscilloscope (preferably on the G-K of the thyristor). If there is a missing pulse, check if the connection has poor contact or open circuit. Is there any pulse output at the front stage?
2. Inverter thyristor breakdown. Use a multimeter to measure the resistance between A and K. In the absence of cooling water, the value of A-K should be greater than 10K, and the resistance is 0. If there are two damages during the measurement, remove one of the connected copper bars and judge whether one or two are damaged. Replace the thyristor and check the cause of the thyristor damage.
3. Capacitor breakdown. Use the × IK block of the pointer multimeter to measure the capacitance of each column to the common terminal. If there is no indication that the column is broken, remove the damaged capacitor pole.
4. The load has a short circuit and grounding. The resistance of the coil to ground (without cooling water) can be measured with a 1000V megger (shake table), which should be greater than 1MΩ, otherwise the short-circuit point and grounding point should be excluded.
5. The IF signal sampling loop has an open or short circuit. Use an oscilloscope to observe the waveform of each signal sampling point, or use a multimeter to measure the resistance value of each signal sampling loop to find the open or short point. Focus on the intermediate frequency feedback transformer, whether the primary side is open (caused by the snorkeling sensation).
Large AC Motors Terminal Rings Medium-fr
Electric Motor Rotor Bars and End Rings
Medium-frequency welding of motor rotors
Medium-Frequency Brazing Equipment
Integral Brazing Process for the Rotor E
Online Heating Equipment for Trapezoidal
Online Heating Equipment for Aluminum In
Aluminum ingot heating equipment
Welding Equipment for Traction Motor Rot
Fully Digital Medium Frequency Welding E
Motor rotor end ring brazing equipment
Motor Rotor Guide Bar Welding Heating Eq
Brazing equipment for hydro generator co
Generator rod induction brazing equipmen
Hydropower generator stator bar brazing
Iron induction furnace
Aluminum melting furnace
Copper melting furnace
Small steel melting furnace
Small induction melting furnace
Induction iron furnace
3T intermediate frequency iron melting f
0.25T Intermediate Frequency Furnace
0.5T Intermediate Frequency Furnace
Medium Frequency Furnace
2T Induction Melting Furnace
1T Induction Melting Furnace
500kg Induction Melting Furnace
250kg Induction Melting Furnace
Induction Melting Furnace
3 T Induction Melting Furnace
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