ZJ-150

500m3/h Vacuum Pumping System

  • The YUNENG 500m3/h double stage transformer evacuation system with vacuum pump is used to extract the vacuum of electrical vacuum devices.
  • The devices are located in transformer substations, power supply administrations, power generation plants, and transformer manufacturers.
  • The system operates in a vacuum degree of 133Pa, and the limit vacuum degree is 1Pa.
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The ZJ-150 is a versatile vacuum system for medium-capacity transformers up to 220 kV. Higher pumping speed shortens processing cycles and improves overall work efficiency for both on-site and workshop applications.

The unit features strong environmental adaptability and stable long-hour performance. It is fitted with a GIS vacuum connector, enabling independent and professional evacuation for GIS components.

ItemName of ParameterModel/UnitZJ-150
Technical parametersPumping rateL/s150
Limit vacuumPa≤3
Pumping level/2
Working power/AC380V 50Hz,3P or as per buyer’s option
Total powerkW6
Vacuum connectionDN40
Sizemm1550*1150*1680
Weightkg550
*Due to different equipment configurations, its dimensions and weight will vary slightly.

1. High-Efficiency Pumping Performance

150 L/s pumping capacity significantly reduces processing time, improving productivity for medium-voltage transformer projects.

2. Robust & Reinforced Frame

Heavy-duty construction provides excellent vibration and impact resistance for reliable operation in harsh environments.

3. Tailored Power Compatibility

Tailored power supplies suitable for field use.

4. Strong Environmental Resistance

Works stably in dusty, humid, and outdoor conditions, matching tough on-site working conditions.

5. Practical Layout & Easy Service

Well-arranged valves, meters and controls simplify operation, monitoring and routine maintenance.

1. Vacuum Evacuation for 220 kV Transformers

Performs high-standard drying, degassing and oil filling to meet strict insulation requirements.

2. Substation Construction & Commissioning

Supports transformer installation, system debugging and project acceptance for new substations.

3. Workshop Transformer Manufacturing

Used in transformer factories for pre-delivery treatment and quality verification.

4. Regional Power Grid Maintenance

Serves regional maintenance centers for frequent transformer overhaul and performance recovery.

5. GIS Precision Vacuum Processing

Carries out accurate, standardized vacuum evacuation for gas insulated switchgear systems.