POWER SUPPLIES FOR RAIL BORNE APPLICATIONS
| DC – DC CONVERTERS | QUANTITY SUPPLIED TILL DATE |
|---|---|
| 110V to 14V 10A for Driver radio/telephone communications British Rail Spec. TEE/E/83/R/58 Type B British Rail Cat. No. 72/7749 | 11000+ |
| 24V to 14V 10A for Driver radio/telephone communications British Rail Spec. TEE/E/83/R/58 Type A British Rail Cat No. 15/5585 | 6700+ |
| 70-110V to 14V 10A for Driver radio/telephone communications British Rail Spec. TEE/E/83/R/58 Type C British Cat. No.52/4195 | 5400+ |
| 24V to 14V 10A for Driver radio/telephone communications Generally to British Rail Spec TEE/E/83/R/58 Type B but sealed to IP54 for Underground environment. | 200+ |
| 110V to 14V 10A for Driver radio/telephone communications Generally to British Rail Spec TEE/E/83/R/58 Type C but sealed to IP54 for Underground environment. | 1700+ |
| 70-110V to 28V 5A for interlocking door mechanism | 3000+ |
| 110V to +5V, ± 15V, +16.5V, +24.V. Total output 60W for Time Division Multiplexer | 950+ |
| 24V to 12V 3A. Dual O/P for track circuit assist BR Cat. No. 820/27051 | 5500+ |
| 400V to 50V 10A for driving switch mode power supplies on Underground Battery Locomotives | 80+ |
| 70-150V to +5V @ 1A; ± 12V @ 0.5A | 300+ |
| FREQUENCY CONVERTERS | QUANTITY SUPPLIED TILL DATE |
|---|---|
| 3 phase input, 240V – 460V, nominal 350V; 30-60Hz for Catering Car appliances Output 240V single phase 50Hz at 3.2kVA | 600+ |
| STATIC CONVERTERS | QUANTITY SUPPLIED TILL DATE |
|---|---|
| Input 600V – 1500V DC or 1000V AC single phase Output 110V DC at 8kW for charging batteries and providing power for lighting, heating and instrumentation | 120+ |
| Input 400 – 800V DC for air conditioning units Output 240V AC, 50Hz at 6kVA | 360+ |
| Input – 32 to -68V DC. Nominal -52V DC for ventilation/air conditioning fans 3 voltage levels are available on the output High speed 240V ± 5%, 50Hz Medium speed 160V ± 5%, 50Hz Low speed 135V ± 5%, 50Hz Power rating 500VA | 1100+ |
| Input 900V – 2000V DC Output 110V DC at 2.5kW for charging batteries and providing power for lighting, heating and instrumentation | 30+ |
| Input 200V – 400V DC Output -52V DC at 520W for powering switch mode power supplies | 30+ |
| NOTE: | ALL TRAIN BORNE POWER SUPPLIES ARE TYPE TESTED TO BRITISH RAIL SPECIFICATIONS RIA12, 13, 18 AND 20. |
|---|---|
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Concept and Design
a. Define the product's purpose and specifications, including voltage and current requirements.
b. Determine the topology and configuration of the power electronics circuit (e.g., inverters, converters, motor drives, etc.).
c. Create a schematic and layout design.
Simulation and Analysis
a. Simulate the circuit design using software tools (e.g., SPICE, PLECS) to ensure it meets performance and efficiency goals.
b. Perform thermal and electromagnetic interference (EMI) analysis to address heat dissipation and EMI concerns.
Prototype Development
a. Build a prototype of the power electronic circuit.
b. Test the prototype for functionality and performance.
c. Make necessary adjustments and improvements based on the test results.
PCB Layout and Manufacturing
a. Create a printed circuit board (PCB) layout based on the schematic design.
b. Send the PCB design to a manufacturer for production.
Component Procurement
a. Source and purchase all required components and materials.
b. Ensure components meet necessary quality standards.
Assembly and Manufacturing
a. Assemble the power electronic product, including soldering components onto the PCB.
b. Perform quality control checks during the assembly process to detect and rectify any defects.
Firmware and Software Development
a. Develop control algorithms and software for the power electronic product.
b. Test and debug the software to ensure proper operation and safety.
Testing and Validation
a. Conduct extensive testing, including functional tests, safety tests, and performance tests.
b. Ensure compliance with relevant industry standards and regulations (e.g., UL, CE, IEEE).
c. Perform environmental and reliability testing to assess the product's long-term performance and durability.
Certification and Compliance
a. Obtain necessary certifications and approvals from regulatory bodies if applicable.
b. Ensure the product meets safety and environmental standards.