溧陽市眾誠達交通科技有限公司坐落于5A風景區——江蘇省溧陽市。
溧陽市眾誠達交通科技有限公司是以專業研發、生產和銷售大功率電阻器為主的,為電子電氣提供一系列的綜合解決方案。產品主要包括:變頻制動電阻器、負載電阻柜、風電crowbar電阻器、Chopper電阻器、中性點接地成套設備、機車制動電阻器、機車接地電阻器、鋁殼電阻、波紋電阻以及軌道交通車輛備品備件。
溧陽市眾誠達交通科技有限公司不斷致力于產品的開拓與創新,為電力系統、工業傳動、新能源、軌道交通等行業客戶提供競爭力的元器件綜合解決方案和服務,持續了解客戶需求,配合客戶共同研發,不斷滿足客戶要求,為用戶創造很大價值。
感謝各屆朋友的支持!
產品特點(Product Features)
1. 使用電壓范圍:0.33 ~110KV
2. 故障電流:1~5000A
3. 額定阻值范圍:0.1Ω∽1500Ω
4. 運行通流時間:5s,10s,30s,60s,10mins,連續運行
5. 防護等級:IP20~IP55
6. 安裝方式:戶內、戶外
7. 可輔助安裝隔離開關、斷路器、CT、PT等
8. 溫升:1)當額定時間:10s,大溫升≤760K
2)當額定時間: 10s
3)連續工作:大溫升≤385K
1. Voltage range:0.33 ~110KV
2. Rated Current: 1~5000A
3. Resistance Range:0.1Ω∽1500Ω
4. Working time: 5s,10s,30s,60s,10mins,working continuous
5. Ingress Protection:IP20~IP55
6. Installation:Indoor、Outdoor
7. Auxiliary parts: disconnecting switch, circuit breaker, CT, PT etc.
8. Resistor temperature rise: 1)Rated time :10s, maximum temperature rise≤760K; 2)Rated time : 10s
接線原理圖 (Wiring diagram)
三相交流電網中性點與大地間電氣連接的方式,稱為電網中性點接地方式。電網中性點接地電阻工作原理圖如下:
The electrical connection mode between neutral point three-phase AC power grid and earth, called grounding mode for neutral point. Neutral point grounding resistor principle diagram as follows:
對變壓器中性點,其電阻接地有兩種方式:
對變壓器副邊為星型接法的變壓器,中性點經電阻直接接地。(見圖一)
對變壓器副邊為角型接法的變壓器,中性點經接地變壓器經電阻接地。(見圖二)
Neutral point of transformer, the grounding resistor has two ways:
On the secondary side the transformer is a star connection method, the neutral point grounding resistor straight. (see Figure.1)
On the secondary side the transformer is a triangle connection method, the neutral point grounding transformer grounding through grounding transformer. (see Figure. 2)
產品選型表(Product Selection Table)
Ⅰ)6.3KV系列中性點電阻柜選型表如下: 6.3KV series neutral grounding resistor selection table,as follows:
型號Type
中性點電壓
阻值
故障電流
通流時間
防護等級
外型尺寸Enclosure
線電壓
Line Voltage
相電壓
Phase Voltage
Resistance
Fault
Current
Rated
Time
Protection Class
Length
Width
High
KV
KV
[Ω]
[A]
[s]
IP
[mm]
[mm]















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