EN
66-69 kV Power Transformer
66-69 kV Power Transformer is configured to the purchaser's network, load and site requirements. The typical range below is for product-page reference; final guaranteed values are confirmed in the approved technical schedule.
|
RATED VOLTAGE |
RATED CAPACITY |
|
STANDARDS BASIS |
TYPICAL APPLICATION |
- Overview
- Recommended Products
- ONAN or ONAF cooling.
- on-load or off-circuit tap changing.
- mineral oil or ester fluid.
- project-specific monitoring and protection interfaces.
- Rated power, voltage ratio, frequency and vector group.
- System earthing, insulation level, impedance and fault level.
- Loss limits, sound limit, cooling stages and tap range.
- Installation altitude/ambient, transport limits and required tests.
- ONAN or ONAF cooling.
- on-load or off-circuit tap changing.
- mineral oil or ester fluid.
- project-specific monitoring and protection interfaces.
- Transmission and grid-reinforcement substations.
- Generation and renewable-energy interconnection.
- High-capacity industrial power systems.
Appurtenance
Inquiry
Please provide the following information so the product selection and quotation can be prepared accurately:
Overview
General Product Overview
The 66/69 kV power transformer is engineered for regional transmission, grid reinforcement and industrial power systems. The electrical design is coordinated around the specified voltage ratio, system fault level, impedance, load profile, losses, noise limit and installation environment.
Main Technical Specifications
Parameter |
Typical range / configuration basis |
Rated voltage |
66 kV or 69 kV |
Rated capacity |
10-120 MVA |
Frequency |
50 Hz or 60 Hz; utility-specific where applicable |
Standards basis |
IEC 60076 or IEEE C57 series |
Cooling |
ONAN, ONAF, OFAF or ODAF as required |
Tap regulation |
Off-circuit tap changer or OLTC to the approved regulation range |
Insulating liquid |
Mineral oil or ester fluid when specified |
Test scope |
Routine tests, agreed type/special tests and test reports |
Design and Configuration Options
The winding arrangement, magnetic circuit, impedance, cooling stages and tap-changing scheme are coordinated as one system. Final values must be confirmed against the purchaser's network data, transport envelope and approved test plan.
Main Applications
Regional transmission substations, renewable-energy interconnection and industrial substations.
Engineering Support
Apex supports requirement review, product selection, drawing and interface coordination, manufacturing follow-up, inspection/test-document coordination, export packing and delivery planning. The final scope is defined in the quotation and approved technical agreement.
Recommended Products
110/115 kV Power Transformer | 132/138 kV Power Transformer | 220/230 kV Power Transformer
