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Biến dòng đo lường hạ áp ngoài trời Shanghai Huatong LMZW-0.5, LMZJ1-0.5W, LMZW-0.66 class 0.2
Đăng ngày 17-08-2021 10:37:26 PM - 681 Lượt xem
Mã sản phẩm: LMZW-0.5, LMZJ1-0.5W, LMZW-0.66
- Model: LMZW-0.5
- Brand: Shanghai Huatong Transformer
1. description overview: LMZW-0.5, LMZJ1-0.5W current transformer is a plastic shell, fully enclosed, outdoor product. It is suitable for electrical energy measurement, current measurement and relay in power systems with a rated frequency of 50HZ or 60HZ and a rated voltage of 0.66KV and below. For electrical protection. The product complies with IEC60044-1; 2003 and GB1208-2006, <current transformer> standards.
2. Introduction to the structure LMZW-0.5, LMZJ1-0.5W current transformer is a fully enclosed structure of ABS flame-retardant plastic shell, which makes the product less susceptible to moisture; the magnetic material adopts annealed ring iron core to ensure the accuracy of the product 0.2 or 0.5; superconductivity The application of magnetic materials enables the product to reach 0.2S or 0.5S level under the same volume, so that the product can accurately measure electric energy under a wide load of 1%-120% of the primary current. The first time is: P1, P2, and the second time is S1, S2 When the primary current flows from P1 to P2, the secondary current flows from S1 to S2 through the external loop, which is degradability. Special reminder: When the primary current passes through, the secondary circuit must not be open, otherwise high voltage will be generated. 3. Conditions of use 1 The altitude does not exceed 1000 meters; 2 The ambient temperature is not higher than +40 degrees, not less than -5 degrees 3 The relative humidity of the surrounding air is not more than 85% (20 degrees Celsius); 4 There is no gas, vapor, chemical deposition, pollution or other explosive and corrosive media that seriously affect the insulation of the transformer in the installation site. Special reminder: When the primary current passes through, the secondary circuit must not be open, otherwise high voltage will be generated. Fourth, the main technical parameters: 1 Rated primary current: 100-1200A 2 Rated secondary current: 5A or 1A 3 Rated voltage: 0.66KV 4 Measurement accuracy level: 0.2S, 0.5S, 0.2, 0.5 5 The power factor of the load: COS∮=0.8 (lagging) 6 Product standard: GB1208-2006 <current transformer>;
150 turns | Current ratio (A) | 150/5 | 75/5 | 50/5 | 30/5 | 15/5 |
Through heart turns | 1 | 2 | 3 | 5 | 10 |
200 turns | Current ratio (A) | 200/5 | 100/5 | 50/5 | 40/5 | 20/5 |
Through heart turns | 1 | 2 | 4 | 5 | 10 |
Five, LMZW-0.5, LMZJ1-0.5W outdoor cast-type low-voltage current transformer installation size and technical parameters