The figures below are the reference values for the standard build of this model. The actual configuration is adjusted to the oil, the throughput and the power supply on site; the technical agreement signed by both sides is what counts.

ZYD-300 two-stage vacuum oil purifier
High-capacity purification equipment for large power stations and regional grid centres, for centralised insulating oil treatment and for emergency repairs.
01Applications
For the centralised purification of insulating oil at large power stations and regional grid centres, and for emergency repairs during maintenance periods. The capacity of one unit meets the daily purification volume handled at regional grid level.
Insulating oils such as new oil, imported oil, extra-high-voltage transformer oil, instrument transformer oil and reactor oil.
Standard: high carbon steel; custom-built: 304 stainless steel
Two vacuum pump sets can run as main and standby, so a single unit covers the daily volume handled at regional grid level. Level, foam, pressure and temperature are monitored online as complete parameters, which supports continuous unattended running.
02Overview
High-capacity purification equipment for large power stations and regional grid centres, for centralised insulating oil treatment and for emergency repairs.
Each machine is designed and built to the company standard and goes through a no-load and a full-load run test before it leaves the works. The test record and the certificate of conformity travel with the machine. Yanneng can work out the right configuration and the treatment line from the oil analysis report and the site conditions you provide.
03Main features
04Technical data
| Flow rate | 18000 L/h |
|---|---|
| Working vacuum | -0.08 ~ -0.0999 MPa |
| Ultimate vacuum | ≤5 Pa |
| Filtration accuracy | ≤1 μm |
| Water content | ≤3 ppm (GB/T 7600) |
| Cleanliness | NAS class 5 (NAS 1638) |
| Breakdown voltage | ≥65 kV (GB/T 507) |
| Total power | 110 + 11 kW |
| Power supply | Three-phase 380V / 50Hz |
| Dimensions | 2200 × 1800 × 2200 mm |
| Equipment weight | approx. 1400 kg |
The figures above are the reference values for the standard build. The actual configuration can be adjusted to the oil, the throughput and the power supply on site; the technical agreement signed by both sides is what counts.
05Optional items
- Optional main and standby vacuum pump set redundancy
- Optional PLC intelligent control with touchscreen operation
- Optional online moisture detector
- The unit can be built as stationary, containerised or fully enclosed
06Common questions
With the standard configuration the delivery time is about 15 to 25 working days. For a customised configuration the technical agreement applies, and staged payment and part-shipment can be offered.
07Related models
Need a quotation, a delivery date or a custom build?
Tell us the conditions this machine has to work in - the oil type, the throughput, the power supply and where it will be installed - and we will come back within one working day with a configuration recommendation and a quotation.