Libreng Kasanayan sa Inhinyero
Motor Nameplate Decoder
I-enter ang motor nameplate data at i-decode ang bawat field. Kalkulahin ang synchronous speed, slip, efficiency, torque, at maintindihan ang insulation class, IP rating, duty cycle, at frame size meanings.
Decoded Nameplate
Bilis ng Synchronous
ns = 120 × f / p, kung saan f ay frequency (Hz) at p ay number of poles.
Slip
s = (ns − n) / ns × 100%, kung saan n ay rated RPM. Karaniwang slip: 2–5% para sa standard motors.
Torque
T = P × 9550 / n (Nm), kung saan P ay power sa kW at n ay RPM.
Efficiency
η = Pout / Pin = P / (√3 × V × I × cos φ). Maaaring ma-estimate mula sa nameplate data.
Insulation Classes
| Class | Max Winding Temp | Ambient + Rise + Hotspot |
|---|---|---|
| A | 105°C | 40 + 60 + 5°C |
| E | 120°C | 40 + 75 + 5°C |
| B | 130°C | 40 + 80 + 10°C |
| F | 155°C | 40 + 105 + 10°C |
| H | 180°C | 40 + 125 + 15°C |
IE Efficiency Classes (IEC 60034-30-1)
| Class | Level | Min. η (example: 11 kW, 4-pole, 50 Hz) |
|---|---|---|
| IE1 | Standard | 87.6% |
| IE2 | High | 89.8% |
| IE3 | Premium | 91.4% |
| IE4 | Super Premium | 93.3% |
| IE5 | Ultra Premium | ~94.6% (indicative) |
IE1–IE4 values are the nominal efficiency limits of IEC 60034-30-1:2014 for this one example rating (11 kW, 4-pole, 50 Hz) — limits differ for every power rating, pole count and frequency. IE5 was only informative in the 2014 edition (Annex A, ~20% lower losses than IE4); normative IE5 limits were introduced in IEC 60034-30-1:2025 — the IE5 figure shown is indicative.
IP Rating Explanation
IP ay nangangahulugang Ingress Protection. Unang digit = solids protection (0–6), pangalawang digit = water protection (0–9).
- IP55 — Dust-protected, protected laban sa water jets mula sa anumang direksyon
- IP65 — Dust-tight, protected against water jets
- IP66 — Dust-tight, protected against powerful water jets
Mag-balance ng motors sa field at magdiagnose ng electrical/mechanical faults gamit ang professional instruments.
