Chongqing Bosun Electrical Co., Ltd.
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33KV GIS Oil Immersed Power Transformer Station For railway and Highway
Product Description
What major equipment is found in a substation?
The major equipment includes:
• Transformers
• Circuit breakers
• Disconnect switches
• Surge arresters
• Capacitors for reactive power compensation
• Current and potential transformers
• Meters and relays
• Control and protective devices like fuses
What safety measures are used in substations?
The key safety measures include:
• Fencing and physical security to restrict access
• Personal protective equipment like insulating gloves, mats, and coveralls
• Control systems to automate and monitor operations remotely
• Installation of fire protection systems like CO2 flooding
• Strict operational and maintenance procedures
Types of substations:
• Generator step-up substations connect power plants to transmission systems. They have the highest voltage levels.
• Transmission substations decrease voltage for easier transmission over long distances.
• Distribution substations further reduce voltage to medium voltage levels for industrial usage.
• Unit substations integrate transformers and switchgear to serve a single customer.
Specification
| Rated Voltage | 12/17.5/24kV | 36kV |
|
Standard applicable | IEC 62271 – 202 (IEC 61330) | IEC 62271 – 202 (IEC 61330) |
| Normal ambient temperature | 40 ° C | 40 ° C |
| Maximum ambient temperature | 50 ° C | 50 ° C |
| Enclosure construction | Modular | Modular |
| Ventilation | Natural | Natural |
| Temperature class (Std.) | K 10 | K 10 |
| MV and LV compartment | IP 54 | IP 54 |
| Transformer compartment | IP 23 | IP 23 |
| Rated voltage (kV) | 12/24kV | 36kV |
| Power frequency (kV rms) | 28/50 | 70 |
| Impulse (kV p) | 75/125 | 170 |
| Rated frequency (Hz) | 50/60 | 50/60 |
| Rated normal current (A) | 630 | 630 |
| Breaking capacity (A) | 630 | 630 |
| Making capacity (kA) | 52.5 / 40 | 50 |
| Rated normal current (A) | 630 | 630 |
| Breaking capacity (kA) | 21/16 | 20 |
| Making capacity (kA) | 52.5 / 40 | 50 |
| Rated power (kVA) – oil type | 2500 | 2000 |
| Rated power (kVA) – Dry type | 2500 | 2000 |
| Rated secondary voltage (V) | 433 | 433 |
| Vector group | Dyn 11 | Dyn 11 |
| Tapping range | + 5 in steps of 2.5% | + 5 in steps of 2.5% |
| IP | Yes | Yes |
| Internal arc | Yes | Yes |
| Enclosure class | Yes | Yes |
| Impact test | Yes | Yes |
| Short circuit test on earthing | Yes | Yes |
Team Show
1.Professional team
2.Comprehensive services
3.Strict quality control
4.Comprehensive inspection
5.Responsibility guarantee
Payment and Delivery
Why Choose Us
1.Our Expertise
2.Quality Products/Services
3.Competitive Pricing
4.Innovation
6.Possibles
7.Authorization by ABB Schneider Siemens