34.5kV 35kV 38.5kV Oil-Immersed Grounding Transformer for Industrial Distribution Network Grounding Protection
Key attributes
| Brand | Vziman |
| Model NO. | 34.5kV 35kV 38.5kV Oil-Immersed Grounding Transformer for Industrial Distribution Network Grounding Protection |
| Rated voltage | 38.5kV |
| Rated capacity | 31500kVA |
| Series | SCB |
Product descriptions from the supplier
Description
Neutral Grounding Transformer product Introduction
Vziman Oil Immersed Grounding transformer, a specialized type of Neutral Grounding Transformer, serves as a core power system device for neutral point grounding. Mainly applied in ungrounded systems or those grounded via arc suppression coils, this Oil Immersed Grounding equipment establishes an artificial neutral point, enabling reliable grounding protection, voltage measurement, or arc suppression coil connection during system faults. As a dedicated Neutral Grounding Transformer, it is engineered to address the specific grounding needs of medium and low-voltage power grids.
Neutral Grounding Transformer product Advantages
- Strong Functional Adaptability:Special windings of the Oil Immersed Grounding transformer build low-impedance zero-sequence paths for stable fault current, enabling precise relay protection. This Neutral Grounding Transformer can work in tandem with arc suppression coils (for arc extinction) or grounding resistors (for current limitation)—a unique advantage that sets it apart from conventional distribution transformers.
- Efficient Design:With a small capacity (1/10–1/5 of distribution transformers), the Oil Immersed Grounding transformer reduces equipment redundancy significantly. Its integrated "grounding + station service" design cuts down overall costs and saves installation space, making this Neutral Grounding Transformer a cost-effective choice for compact power facilities.
- Stable Fault Performance:The Oil Immersed Grounding transformer special windings ensure stable zero-sequence impedance, laying a foundation for accurate fault protection. Its optimized winding and insulation structure can withstand high-current impacts and strong mechanical forces for less than 10 seconds, ensuring the Neutral Grounding Transformer remains operational even under severe fault conditions.
- Flexible Adaptability:The Oil Immersed Grounding transformer features excellent heat dissipation, making it suitable for operation in narrow installation spaces. Compared with using distribution transformers (which require additional grounding devices and pose reliability risks), this Neutral Grounding Transformer delivers lower long-term operation costs and higher system stability.
Neutral Grounding Transformer Operating Conditions
- Ambient Temperature: Maximum +40℃; Minimum -25℃ (Wider temperature ranges available for customized Oil Immersed Grounding transformers)
- Relative Humidity: ≤90% (Higher protection levels available for Neutral Grounding Transformer deployed in humid environments)
- Altitude: ≤1000m (Special designs available for Oil Immersed Grounding Transformer equipment used in high-altitude areas)
| Rated Capacity | HV | LV | Connection symbol | No-load loss(kw) | On-load loss(kw) | ||||
| 3150 | 35/38.5±5/2*2.5% |
6.3 6.6 10.5 11 |
Dd11 |
2.4
|
2
|
1.7
|
21.9
|
20.7
|
20.7
|
| 4000 |
2.9
|
2.3
|
2
|
25.9
|
24.6
|
24.6
|
|||
| 5000 |
3.5
|
2.8
|
2.4
|
29.7
|
28.2
|
28.2
|
|||
| 6300 |
4.2
|
3.4
|
2.9
|
33.3
|
31.5
|
31.5
|
|||
| 8000 |
5.8
|
4.7
|
4
|
36.5
|
34.6
|
34.6
|
|||
| 10000 |
7
|
5.7
|
4.8
|
46
|
40.8
|
40.8
|
|||
| 12500 |
8
|
6.5
|
5.5
|
51.1
|
48.4
|
48.4
|
|||
| 16000 |
9.7
|
7.9
|
6.7
|
62.5
|
59.2
|
59.2
|
|||
| 20000 |
11.5
|
9.4
|
7.9
|
75.5
|
71.6
|
71.6
|
|||
| 25000 |
13.6
|
11.1
|
9.4
|
89.3
|
84.6
|
84.6
|
|||
| 31500 |
16.2
|
13.1
|
11.1
|
106.4
|
100.8
|
100.8
|
|||
Oil Immersed Grounding transformer Scope of Application
Vziman Oil Immersed Grounding transformer, as professional Neutral Grounding Transformer devices, are mainly used in medium-low voltage non-effectively grounded systems. They are ideal for scenarios such as neutral point extraction, capacitive current compensation, grounding fault handling, and zero-sequence parameter monitoring. These devices are especially suitable for distribution networks, small power generation systems, and industrial/civil power networks with high power supply reliability requirements.
Product Parameters
Neutral Grounding Transformer Factory & workshop
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