Conservator Type – 3150 KVA – 6, 6.3, 10, 10.5, 11/0.4 KV – Oil-immersed Transformer – Excited – OLTC
Phase: 3
Winding Material: Copper/Aluminum
Iron Core: Cold-rolled Silicon Steel Sheet
Insulation Material: Transformer Oil (25#/45#)
Standard: GB1094.1 (IEC60076)
Origin: China
Warranty: Available
HS Code: 8504220000
Lead Time: ≤4 pcs, 25 days, or negotiated
Specification
No. | Item | Value |
1 | Type | SZ11-3150-6, 6.3, 10, 10.5, 11-R SZL11-3150-6, 6.3, 10, 10.5, 11-R |
2 | Rated capacity | 3150 kVA |
3 | Rated voltage | 6, 6.3, 10, 10.5, 11 / 0.4 kV |
4 | Frequency | 50 Hz |
5 | Connection symbol | Dyn11/Yyn0 |
6 | Voltage regulation | Excited, OLTC |
7 | Voltage regulation range | ±4×2.5% |
8 | No-load losses | 2840 W (±15%) |
9 | Load losses | 28400 W (±15%) |
10 | Short circuit impedance | 5.5% (±10%) |
11 | Insulation level | LI75AC35/LI0AC5, kV |
12 | Cooling method | ONAN |
13 | Temperature rise limit | Top oil: 55 K Winding(average): 65 K Winding(hot spot): 78 K Iron core, oil tank and structure surface: 75 K |
14 | Corrugated radiator | Fixed |
Outline Drawing
- SZ11-3150-6, 6.3, 10, 10.5, 11-R (Copper Winding)
Transformer Roller InstallationAvailable

- High mechanical strength
- With locking function
- Easy to install
Running Environment
- Highest temperature: + 40 ℃
- Lowest temperature: -45 ℃
- Altitude: ≤ 4000 m
- Highest monthly average relative humidity: 90% (20 ℃)
- Installation location: without fire, explosion danger, serious foul, chemical corrosion, or violent vibration.
Package-Plywood box / Naked

- Strong, reliable and durable
- Lighter weight
- Easy to assemble and disassemble
- After high temperature sterilization
Document List
- Test report
- Certificate of Conformity
- Instruction Manual
- Certificate of Origin
- Sales Contract
- Commercial invoice
- Others are provided according to customer requirements
Advantage
- Hermetically sealed type or with oil conservator can be selected
- Strong overload resistance
- Less losses
- Great mechanical strength





