Y100KKG-KT100cT 4890A 3000V 40~130µs Fast Turn-off Thyristor Interdigitated amplifying gates Fast turn-on and high di/dt Low switching losses Typical Applications Inductive heating Electronic welders Self-commutated inverters

key parameter

Features

• Interdigitated amplifying gates
• Fast turn-on and high di/dt
• Low switching losses

Typical Applications

• Inductive heating
• Electronic welders
• Self-commutated inverters

Outline

Well-equipped laboratory

We have a well-equipped laboratory for testing and strictly control the quality of our products. This ensures that the qualification rate of the products we deliver to customers reaches 100%.

Automated modern factory

The modern automated factory ensures that all performance indicators of our products are highly consistent, minimizing the differences in each product's parameters as much as possible. This not only guarantees the reliability and consistency of our products but also serves as an important guarantee for the safe and reliable operation of our customers' equipment.

Adequate production capacity

The manufacturer's strong comprehensive strength and sufficient production capacity ensure timely delivery of every order.

Why choose us?

Beijing World E To Technology Co., Ltd. is leading supplier of semiconductor products like IGBT moudel,IGBT discretes, IGBT Chips ,ADC/DAC ,Thyristor in China, mainly engaged in the official distribution of the brand of CRRC, Starpower, Techsem NARI.With import and export qualifications and 11 years experience in this industry, we export to Russia, UAE, and many other Europe area.
We have strict requirements for the selection of manufacturers, professional technical teams, and product quality control Ensure the smooth operation of projects for customers in the fields of rail transit, power industry, electric vehicles, motor drive inverters, and frequency converters.
Meanwhile, helping customers customize various thyristors and power assemblies according to their special parameter requirements is another important component Our contract manufacturing and one of our advantages.

Safe delivery

We cooperate with top international freight companies to ensure timely transportation.
At the same time, we carefully package every batch of goods delivered to our customers according to their requirements to ensure that our goods are delivered intact and undamaged.

Application Case

Technical Proposal: Ultra-High Power Rapid Shut-off Thyristor for Steel Plant Induction Heating Systems
Model: Y100KKG-KT100cT

1. Executive Summary
   This proposal details the application of our Rapid Shut-off Flat-Type Thyristor (Y100KKG-KT100cT ) in a high-power induction heating system at a leading steel plant. Designed for extreme conditions (4,890A/2,500V), for advanced metallurgical processes.

2. Project Background & Pain Points
   Client : Integrated steel mill with induction heating lines for billet forging.
   Existing System :
   - Traditional thyristor-based inverters with parallel resonance circuits .
   - Operating voltage: ~1800V, frequency: ≤2.5 kHz .

Critical Pain Points:
- Low Efficiency : 20–30% power loss due to diode reflux and commutation failures .
- Frequent Failures :
- Through faults caused by high dV/dt (leading to false triggering) and slow turn-off (60 μs) .

3. Technical Solution & Innovations

Due to technical confidentiality agreements. Omit the content of this clause.

4. Implementation & Results
Deployment Scope :
- 3 × 3.5 MW induction furnaces for forging billet heating (1,250°C).
- Full retrofit of thyristor banks and control firmware.

Technical Milestones :
- High-Frequency Refining (8 kHz) : Reduced oxidation loss by 18% (from 2.1% to 1.7% melt yield.
- Low-Frequency Stirring (1.2 kHz) : Achieved ±5°C temperature homogeneity, eliminating segregation defects.
- Zero Through-Faults : Validated over 6 months of 24/7 operation.

5. Competitive Advantages
Vs. Conventional Thyristors
- 5× higher dI/dt : Sustains 4,890A surge during cold-start without de-bonding .
- Direct Water Cooling : Allows 120% overload for 10 sec (critical for scrap melting).

6. Practical Case: Shandong Steel Induction Line Upgrade
Project Profile :
- Capacity : 50 t/h billet heating line (operating since 2023).
- Thyristors : 12 × RST-4890/2500-F per furnace.
- Results :
- ROI: 8 months via energy/maint. savings.
- Production Uptime: 99.2% (vs. 89.5% pre-upgrade).
- Awards: Shandong Industrial Innovation Prize 2024.
7. Conclusion & Next Steps
The Y100KKG-KT100cT redefines ultra-high-power thyristor standards for induction heating by:
① Resolving decades-long commutation failures ;
② Enabling multifrequency metallurgical processes ;
③ Cutting lifecycle costs by 30%.

Recommendation : Pilot deployment on one furnace with 36-month performance warranty . Our engineers will provide:
- FEA thermal-stress simulation for cabinet design;
- dI/dt test reports (per IEEE 1460);
- Training for local maintenance teams.

Solemn statement:
This case aims to provide users with a brief explanation of the application of our thyristor in a specific project.
We are not responsible for any economic losses caused by the implementation of any project that replicates this technical solution.