IS 2993
Capacitors - A.C. motor capacitors
Summary
A.C. motor capacitors are electrical components used to improve the starting and running performance of alternating current (AC) motors. They store and release electrical energy, creating a phase shift that helps motors start smoothly, maintain efficiency, reduce power loss, and protect the motor from overheating or voltage fluctuations.
Why BIS Certificate is Mandatory for A.C. motor capacitors
BIS certification is mandatory for AC motor capacitors to ensure safety, reliability, and performance. Certified capacitors meet Indian Standards for voltage rating, capacitance tolerance, dielectric strength, and insulation. This prevents electrical hazards, short circuits, and motor damage, while ensuring consistent quality for domestic and industrial applications.
What is BIS Certified for A.C. motor capacitors
BIS certified specification for AC motor capacitors defines requirements for capacitance, voltage rating, tolerance, dielectric type, insulation resistance, temperature range, and construction. Compliance ensures capacitors are safe, reliable, and durable, suitable for motor starting and running applications. Testing and inspection methods are also specified to maintain quality and performance standards.
Test required for A.C. motor capacitors
| Title | Mandatory/Optional |
|---|---|
| Sealing test (if applicable) | Required |
| Voltage test between terminals | Required |
| Voltage test between terminals and case | Required |
| Visual examination | Required |
| Capacitance measurement | Required |
| Tangent of loss angle | Required |
| Marking | Required |
| Indelibility of marking | Required |
| Creepage distances and clearances | Required |
| Terminals and connecting Cables | Required |
| Earth connections | Required |
| Discharge devices | Required |
| Voltage test between terminals (Type test) | Required |
| Voltage test between terminals and case (Type test) | Required |
| Check of dimensions | Required |
| Mechanical tests | Optional |
| Endurance test | Optional |
| Damp heat test | Optional |
| Self-healing test (if applicable) | Optional |
| Destruction test (if marked on the capacitor) | Optional |
Benefits of BIS Certification for A.C. motor capacitors
-
Ensures Electrical Safety
BIS certification guarantees that capacitors meet stringent safety standards, preventing short circuits, fire hazards, and motor damage. -
Reliable Performance
Certified capacitors provide consistent capacitance, voltage handling, and efficiency, ensuring motors operate smoothly under varying loads. -
Durability and Longevity
BIS standards ensure robust insulation, thermal stability, and quality materials, extending the lifespan of capacitors and connected motors. -
Legal and Market Compliance
BIS marking is mandatory in India, allowing manufacturers and importers to sell products legally while avoiding regulatory penalties. -
Consumer Trust and Brand Value
BIS-certified capacitors enhance credibility, improve market acceptance, and assure consumers and industrial buyers of quality, safety, and performance.