Ⅰ. Usimamizi wa Mradi & Tafiti ya Matatizo
Majengo la ofisi ya Mexico linatumia mfumo wa mchakato wa hewa chungu cha biashara 15HP uliokuwa unaelekezwa na grid ya single-phase 220V. Kwa sababu ya ukosefu wa umeme wa three-phase 380V, kila mara ambapo komprisa inaanza, kuambukiza current inazidi kiwango cha overload (kilichohesabiwa kuwa 3.2× rated current), hii kinaweza kutoa ufanisi wa baridi hadi 40%, pamoja na:
- Temperatura ya motor winding inaruka zaidi ya viwango (ΔT > 65°C), kunyongeza muda wa uzito wa insulation kwa asilimia 60%
- Kutokoka mara kwa mara ya contactor (tatizo la 3 wakati kila mwezi)
- Ufanisi wa power factor tu 0.72 na upotoso wa reactive power mkubwa
- Ukosefu wa uwezo wa variable frequency speed regulation, ufanisi wa temperature control ni ±2.5°C
Ⅱ. Mipango ya Ufumbuzi wa Transformer wa American Standard ya ROCKWELL
1. Chaguo la Vifaa Vikuu
Transformer wa American Standard unayoweza kutumika kwa conversion ya 220V hadi 380V
- Tanzo la electromagnetic: Transformer wa Class H insulation dry-type una N+1 redundant winding configuration, short-circuit impedance ni 6%
- Ufanisi: Rated capacity 150kVA, conversion efficiency ≥98.5%, 150% overload capacity kwa masaa 2
- Sertifikati za UL: Inafanikiwa maoni ya UL 508A industrial control standards na UL 60950-1 IT equipment safety requirements
2. Integretion ya Mfumo wa Mtazamo wa Teknolojia
(1) Module ya mtazamo mbali
- Interface ya Modbus RTU/TCP dual-protocol kwa integretion ya SCADA system
- Mtazamo wa muda wa 18 parameter kama vile voltage ya three-phase (±0.5% accuracy), current harmonics (THD <3%), na winding temperature (±1°C)
(2) Protection ya prediction
- Alaram za tiered: Pre-alarm (kiwango cha 85%) na emergency trip (kiwango cha 105%)
- Kuruhusu rekodi waveform ya fault kwa vitendo vya abnormal vya hivi karibuni 50
(3) Optimization ya Ufanisi wa Nishati
- Dynamic reactive power compensation: Capacitor bank ya automatic switching ya 60kVar inapata power factor mpaka 0.95
- VFD retrofit: Variable frequency drives yenye compatibility na American Standard Distribution Transformer yanaweza kufanya compressor speed regulation bila hatari 0-60Hz
- Mfumo wa heat recovery: Reuse ya waste heat ya condenser inaweza kuboresha comprehensive EER hadi 4.8
Ⅲ. Thibitisho ya Matokeo ya Ufumbuzi
Namba |
Kabla ya ufumbuzi |
Baada ya ufumbuzi |
Maendeleo |
Startup current |
320A |
98A |
69% reduction |
Ufanisi wa baridi |
40% |
98% |
145% increase |
Tatizo la kila mwezi |
3 |
0 |
100% elimination |
Umatumizi wa nishati kwa mwaka |
580,000kWh |
476,000kWh |
18% reduction
|
Ufanisi wa temperature control |
±2.5℃ |
±0.5℃ |
5 × improvement |
Ⅳ. Huduma ya Mahali
- Timu ya mbinu ya mahali: Fundi wa NEC-certified na huduma ya emergency response kwa dakika 120
- Platform ya O&M Digital: Analytics ya Device Health Index (DHI) inafanikiwa accuracy ya predictive maintenance ya 92%