Outdoor Packaged Transformer Substations
25 TO 2500kVa up to 10 kV
- Description
- Specifications
- Symbol
- Desing classifications
- OPTS structural design
- Example. OPTS-KTVK-630/10/0.4 NF1
- Photo
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Description
Stationary outdoor packaged transformer substations are designed for receipt, conversion and distribution of 3-phase 50 Hz, 6 (10) / 0.4 (0.69) kV alternating current electric power in moderate (N) and moderate cold (NF) climate, placement category 1 according to GOST 15150.
Specifications
| Power transformer power, kVA | 25; 40; 63; 100; 160; 250; 400; 630;1000; 1250; 1600; 2000; 2500 |
| High voltage side rated voltage (HV), kV | 6; 10 |
| High-voltage (HV) side maximum operating voltage, kV | 7.2; 12 |
| Low-voltage (LV) side rated voltage, kV | 0.23; 0.4; 0.6; 0.69 |
| Main circuits AC frequency, Hz | 50±1.25 |
| Auxiliary circuits AC frequency, Hz | 50±1.25 |
| Insulation level according to GOST 1516.3: – with dry transformer – with oil transformer | Reduced Normal level "b" |
| Rated voltage of auxiliary circuits, V: – AC and DC protection, control and alarm circuits – voltage transformers circuits – lighting | 220 100 36 |
Symbol structure
Number of transformers in use (number is omitted if only one transformer is used)
Letter designation of the product: PTS is packaged transformer substation manufactured by Chelyabinsk Electric Equipment Plant LLC
Installation classification:
- Н - outdoor
Design classification:
- К - kiosk design
- Б - block and modular design
Connection classification:
- Т - one-ended
- П – double-ended
Classification of lead-in on HV side:
- К - cable
- В – overhead
Classification of lead-in on LV side:
- К - cable
- В – overhead
Power transformer power, kVA
HV side voltage, kV
LV side rated voltage, kV
Climatic modification and placement category according to GOST 15150-69
Desing classifications
| OPTS classification attributes | Design |
|---|---|
| In terms of power transformer type | Oil, sealed oil, sealed with noncombustible liquid dielectric, dry, with cast insulation |
| In terms of method of design of transformer neutral on low voltage side (LV side) | With solid-earthed neutral; |
| With insulated neutral | With one transformer; With two transformers |
| In terms of number of power transformers in use | With one transformer; With two transformers |
| Presence of insulation in switchgear on LV side (low-voltage switchgear device) | With non-insulated buses |
| In terms of high-voltage lead-in design | Cable (C);Overhead (O) |
| In terms of design of leads using cables in LV switchgear | Cable (C);Overhead (O) |
| In terms of climatic modifications and placement category | Placement category 1, climatic modification N, NF according to GOST 15150, GOST 15543.1 |
OPTS structural design
OPTS-B consists of several packaged modular facilities (PMF), which form a unified structure after installation with all the necessary equipment installed indoors.
Example. OPTS-KTVK-630/10/0.4 NF1
Overall dimensions and layout of substation
