22kV Three-phase oil-immersed grounding transformer with oil conservator
Key attributes
| Brand | Vziman |
| Model NO. | 22kV Three-phase oil-immersed grounding transformer with oil conservator |
| Rated voltage | 22kV |
| Rated frequency | 50Hz |
| Series | SJD |
Product descriptions from the supplier
Description
Product Description
Grounding transformers are designed to provide an artificial neutral point for ungrounded three-phase power systems.During a line ground fault, the grounding transformer provides an easy path for the ground fault, thereby limiting the fault current and transient overvoltage.Grounding transformer usually generates a short-circuit grounding current until the circuit breaker clears the fault. Therefore, their time is shorter.Grounding transformer depends on the normal line-to-neutral voltage and the fault current value for a specified time (e. g., seconds to minutes).
Product Parameters
| Voltage | Up to 22kV |
| Working voltage | 20kV |
| Standard | IEC 60076-6 or equivalent |
| Rated power | 100kVA |
| Rated voltage HV/LV | 20/0.4kV |
| Cooling method | ONAN |
| Frequency | 50Hz |
| Installation | Outdoor |
| Zero sequence impedance | 19 ohms |
| No stage | 3 |
| Voltage regulation range (no tap) | 5 |
| Temperature rise | Complies with IEC standards |
| Winding Material | Copper |
| Insulation class | According to rated voltage(IEC70076-3) |
| Impedance voltage | 5.5 percent |
| Ambient temperature | -40 to +40°C, other temperatures on request |
| Vector group | ZNyn11 |
| Voltage adjustment range (number of taps) | 5 |
| Bushing | Porcelain |
| Creepage | 31mm/kV |
| Breathing | Silicone |
Documentation Resource Library
Restricted.
Vziman Renewable Energy Earthing transformer Catalog
Catalogue
English
Consulting
Related Products
-
25.8kV 27kV 33kV 600A Neutral Zig-zag Grounding Reactor Transformer
-
500kVA 11kV Dry-Type Zigzag Grounding Transformer
-
2000kVA 33kV Oil-Immersed Grounding Transformer with NGR
-
13.2kV, 13.8kV, 24.94kV, 34.5kV Renewable Energy Grounding Transformer
-
33kV 34.5kV 35kV 36kV ONAN Grounding Transformers
-
50 kVA Three Phase Grounding Transformer
-
27kV 33kV 34.5kV 35kV Three Oil And Dry Type Grounding Transformer
-
10kV Oil-immersed Grounding Transformer for System Safety
-
20kv 150kVA Voltage Oil Immersed Electrical Grounding Transformer for Renewable Energy
-
36kV ONAN/KNAN Oil-immersed Grounding Transformer
