Products
RIP/RIF Oil-Air Transformer Bushing
QXFBRG(P)W(D)(L) | 12kV - 550kV | 1A - 8000A
| Main Technical Index | ||||||
|---|---|---|---|---|---|---|
| System Nominal Voltage (kV) | 66 | 110 | 220 | 330 | 500 | |
| Rated Voltage (Highest Voltage for Equipment) (kV) | 72.5 | 126 | 252 | 363 | 550 | |
| Power Frequency Withstand Voltage (kV/min) | 155 | 255 | 505 | 625 | 750 | |
| Lightning Impulse Withstand Voltage | Full Wave | 325 | 550 | 1050 | 1175 | 1800 |
| Chopped Wave | 357.5 | 605 | 1155 | 1292.5 | 1980 | |
| Switching Impulse Withstand Voltage (kV) | - | - | 850 | 950 | 1300 | |
| Dielectric Dissipation Factor | Maximum | The value at 1.05Um/√3 shall not exceed 0.4%. | ||||
| Increment | The increment between 1.05Um/√3 and Um shall not exceed 0.1%. | |||||
| Test Terminal Insulation Level (kV/min) | 3 | |||||
| Partial Discharge Level (pC) | Um | ≤10 | ||||
| 1.05Um/√3 | ≤5 | |||||
| Pressure Tightness Test | 0.8 MPa/24h, no leakage. | |||||
| Short-Time Withstand Current | Magnitude: 25 times rated current, max 100kA. Duration: 2s. | |||||
| Rated Frequency (Hz) | 50 | |||||
Flexible Conductor Design: Offered in either draw-lead (cable) or solid-stem conductor configurations to suit various connection needs.
Solid & Sealed: The solid dielectric core eliminates common oil leakage and moisture ingress issues, guaranteeing stable performance.
Custom Design: Tailored to your specific electrical and mechanical interface requirements.
Designed for the external connection point of oil-immersed transformers, providing a reliable interface between the transformer's internal oil environment and the external air-side connection.
Ambient Temperature: Suitable for a range of -50 °C to +50 °C. For environments outside this range, the technical specifications shall be subject to agreement between the supplier and the purchaser.
Installation Angle: Can be installed at any angle.
Altitude: Applicable for installations at or below 2000m above sea level.
When placing an order, please specify the following parameters:
1. Electrical Parameters: Rated voltage, rated current, rated frequency, external insulation creepage distance, internal insulation clearance, oil-end length, draw-lead length (critical), CT mounting position length (critical).
2. Environmental Parameters: Ambient temperature.
3. Installation Details: Please indicate if a measurement terminal is required. If yes, please provide the required installation dimensions for the terminal.
Note: The dimensions of the bushing flange and terminals can be custom-designed according to the transformer manufacturer's requirements. We also supply direct replacement bushings for existing installations.
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