
The full form of an ONAN transformer is Oil Natural Air Natural. Natural circulation of oil
DEMIKS offers exceptional Box Type Fixed AC Metal Enclosed Switchgear and guarantees trusted and sturdy products for your electrical requirements. As one of the top manufacturers in China, we are compliant with the utmost regulations in the industry for safety and efficiency. Reach out to us for further information!
Application: Use case of 3.6-12KV 50Hz indoor switchgear is for energy distribution, control, protection, and monitoring functions within various facilities.
Compliance with Standards: Fulfills the requirements of GB3906, DL/T404, and IEC60298.
Environmental Endurance: Functions at an operational altitude of -25℃ to +40℃ with restrictions of earthquakes less than 8 on the richter scale.
Safety Aspects: Fulfills the safety IP2X with secondary protections of five prevention interlocking and grounding.
Operability and Maintenance: Compact sixe with an observation window for monitoring ease and simple cable connections.
New Technologies Employed: Contains advanced tech with a VS1 circuit breaker, rotary isolating switches, and JSXGN locking mechanisms.
| Parameter | Specifications |
|---|---|
| Rated Voltage | 3.6kV, 7.2kV, 12kV, 24kV, 40.5kV (according to IEC or GB standards) |
| Rated Current | - Busbar: 630A, 1250A, 1600A, 2000A, 2500A, 3150A, etc. |
| - Circuit Breaker: 630A–3150A (depending on configuration) | |
| Rated Short-Time Withstand Current | 20kA/4s, 25kA/4s, 31.5kA/4s, 40kA/4s, etc. |
| Rated Peak Withstand Current | 50kA, 63kA, 80kA, 100kA, etc. (typically 2.5 × thermal stability current) |
| Rated Frequency | 50Hz/60Hz |
| Insulation Level | - Power Frequency Withstand Voltage: 42kV (12kV), 65kV (40.5kV) |
| - Lightning Impulse Withstand Voltage: 75kV (12kV), 125kV (40.5kV) |

The full form of an ONAN transformer is Oil Natural Air Natural. Natural circulation of oil

Shanghai Demiks Power Technology Delivers High-Voltage Test Equipment & On-Site After-Sales Service for Zhuhai Kangjin Laboratory

ONAN versus ONAF refers to the external airflow. ONAN means Oil Natural Air Natural: oil circulates
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