120000kVA three-phase oil power transformer 230kv 161kv 33kv distribution transformer load tap changer
| Model | SFZ 120000/230/35KV |
| winding type | double winding transformer |
| Usage | power transformer |
| Core Shape | ring. |
| Test Certification | Kema Transformer Test |
| Specification | IEC standard |
| Origin | Ningbo |
| production capacity | 1/6 month |
| cooling method | oil-immersed transformer |
| certification | ISO9001-2000 |
| frequency characteristics | power frequency |
| Brand | Ville |
| transport package | wooden box |
| trademark | ville |
Product Description
product introduction:
Power transformer 230-242kV on-load tap changer power transformer is made of high-quality silicon steel sheet and laminated step by step.
tIt is advantageous in terms of low loss, low noise, low voltage partial discharge and high anti-short circuit capacity. kinetic and thermal stability
The coil of the transformer is wound by high-quality oxygen-free copper wire, and a pre-compressed bracket is used
processes and internal and external structures. The transformer tank adopts a waveform shell, the appearance is very good, and the core is D-shaped
Yoke and 45 corner seams. The core and oil box are well fixed and well protected when moving.
Three-phase double-winding oil-immersed power transformer with OLTC
technical parameters:
Type: SFZ-120000/230
Rated voltage: 230/34 kV
Rated capacity: 100000/120000kVA
Rated voltage ratio: 230±8 × 1.25%/34kV
Rated current: 301/2038A
Stage number: three
Rated frequency: 50Hz
Connection: Ynyn0(d11)
Voltage regulation mode: neutral point on-load voltage regulation
Short circuit impedance: 9.5%(10MVA)
Cooling mode: ONAN/ONAF
| Description: | Lightning impulse withstand voltage (kV peak) | 1minMain frequency withstand voltage (kV rms) |
|
| full wave | chopper | ||
| high pressure side | 1050 | 1175 | 460 |
| high voltage neutral point | (1050) | ( 460) | |
| Low pressure side | 170 | 185 | 70 |
| Low voltage neutral point | 170 | 70 | |
insulation class: A
The field strength between the turns of the transformer winding does not exceed 2kV/mm
Transformer losses (below 75) No-load current and efficiency
No-load loss: 92 kW according to IEC standard
Load loss: 356 kW according to IEC standard
No-load current: 0.3% according to IEC standard
Radio Interference and Corona
At the maximum phrase voltage, the corona is not visible from the output terminal on a clear night outside. radio interference
Voltage not exceeding 2500Uv
Overload capacity
The short-time overload capacity and overload operation time of the transformer are as follows:
| Overcurrent | 30 | 45 | 60 | 75 | 100 |
| Allowable run time min | 120 | 80 | 45 | 20 | 10 |
Case Reference:
production line:
Referenc transformer:
Packing and shipping:
the best service we offer you
| 1. | Pre-Sales Services |
| a. | production |
| B. | sending quotations, technical data sheets and drawings |
| c. | preparation of power transmission plan, test plan and shipment plan |
| 2. | |
| a. | Supervise production progress in full accordance with the plan |
| B. | sends photos to customers during each manufacturing process (hold points) |
| c. | notify the customer one week before the test. |
| 3. | after-sales service |
| a. | installation and commissioning, training of workers |
| B. | 12 hours |
| c. | normally provides a 12-month guarantee period. |
FAQ
