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Thiết bị thanh lí-hàng tháo máy
Biến áp đo lường Shanghai Huatong JDG-0.5, JDG1-0.5, JDG4-0.5
1. Product overview
JDG-0.5; JDG1-0.5 voltage transformer is a single-phase, indoor, dry-type product, single or a set of two when used, V/V connection when a set of two, suitable for rated frequency 50Hz or 60Hz , The rated voltage is 0.5kV for electric energy metering, voltage measurement and relay protection in power systems.
Tình trạng sản phẩm:
2. Conditions of Use
1. The altitude does not exceed 1000 meters;
2. The ambient temperature is not higher than +40℃ and not lower than -5℃;
3. The relative humidity of the surrounding air is not more than 85% (20℃);
4. This product has passed the direct vibration test, and can withstand damage equivalent to three-wave sine wave with an acceleration of 0.4g and a crack of nine on the Richter scale.
Three, structure introduction
The JDG-0.5 transformer is a dry type, with an outer iron core structure, and the windings are varnished to protect the product from moisture. The iron core of JDG-0.5 is made of high-quality silicon steel sheets. The iron core of JDG1-0.5 product is made of C-shaped high-quality silicon steel sheet. The product is small in size and light in weight, and only occupies a limited space for installation. The marks of the lead terminal of the primary winding are A and B; the marks of the lead terminal of the secondary winding are a, b, which are clearly marked on the terminal. There is a grounding bolt next to the grounding mark on the clamp for grounding, and the lower bracket is for installation. The overall structure is compact and easy to use.
Four, low-voltage voltage transformer selection parameter table
5. The role of JDG-0.5 voltage transformer transforms
high voltage into a standard secondary voltage of 100V or lower in a proportional relationship for protection, metering, and instrumentation. At the same time, the use of voltage transformers can isolate high voltages from electrical workers. Although the voltage transformer is also a device that works according to the principle of electromagnetic induction, its electromagnetic structure relationship is exactly the opposite of that of the current transformer. The secondary circuit of the voltage transformer is a high-impedance circuit, and the magnitude of the secondary current is determined by the impedance of the circuit. When the secondary load impedance decreases, the secondary current increases, so that the primary current automatically increases by a component to satisfy the electromagnetic balance between the primary and secondary sides. It can be said that a voltage transformer is a special transformer with a limited structure and use form. Simply put, it is the "detection element".
Six, JDG-0.5, JDG1-0.5, JDG4-0.5 single-phase dry-type 500V voltage transformer installation dimensions are as follows
1. The altitude does not exceed 1000 meters;
2. The ambient temperature is not higher than +40℃ and not lower than -5℃;
3. The relative humidity of the surrounding air is not more than 85% (20℃);
4. This product has passed the direct vibration test, and can withstand damage equivalent to three-wave sine wave with an acceleration of 0.4g and a crack of nine on the Richter scale.
Three, structure introduction
The JDG-0.5 transformer is a dry type, with an outer iron core structure, and the windings are varnished to protect the product from moisture. The iron core of JDG-0.5 is made of high-quality silicon steel sheets. The iron core of JDG1-0.5 product is made of C-shaped high-quality silicon steel sheet. The product is small in size and light in weight, and only occupies a limited space for installation. The marks of the lead terminal of the primary winding are A and B; the marks of the lead terminal of the secondary winding are a, b, which are clearly marked on the terminal. There is a grounding bolt next to the grounding mark on the clamp for grounding, and the lower bracket is for installation. The overall structure is compact and easy to use.
Four, low-voltage voltage transformer selection parameter table
| Product number | Voltage ratio | Accuracy level and output capacity VA | Limit output VA | |||
| 0.2 | 0.5 | 1 | 3 | |||
| JDG-0.5 JDG1-0.5 | 200/100 | 10 | 15 | 30 | 50 | 100 |
| 220/100 | 10 | 15 | 30 | 50 | 100 | |
| 380/100 | 10 | 20 | 40 | 50 | 100 | |
| 660/100 | 10 | 25 | 40 | 100 | 200 | |
5. The role of JDG-0.5 voltage transformer transforms
high voltage into a standard secondary voltage of 100V or lower in a proportional relationship for protection, metering, and instrumentation. At the same time, the use of voltage transformers can isolate high voltages from electrical workers. Although the voltage transformer is also a device that works according to the principle of electromagnetic induction, its electromagnetic structure relationship is exactly the opposite of that of the current transformer. The secondary circuit of the voltage transformer is a high-impedance circuit, and the magnitude of the secondary current is determined by the impedance of the circuit. When the secondary load impedance decreases, the secondary current increases, so that the primary current automatically increases by a component to satisfy the electromagnetic balance between the primary and secondary sides. It can be said that a voltage transformer is a special transformer with a limited structure and use form. Simply put, it is the "detection element".
Six, JDG-0.5, JDG1-0.5, JDG4-0.5 single-phase dry-type 500V voltage transformer installation dimensions are as follows
THÔNG TIN THANH TOÁN
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TÂN THÀNH CAM KẾT
- Sản phẩm, hàng hóa chính hãng.
- Giá cả cạnh tranh.
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Thông Tin Công Ty
Chính sách và quy định
Đã thông báo
Hỗ trợ khách hàng
THÔNG TIN LIÊN HỆ:
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