SF6 Gas Recovery, Purification & Refilling Units
transformer oil purifier
Description
   GRT SF6 Gas Recovery Unit is main used for manufacture, installation and maintenance of SF6 electrical equipments, such as circuit breakers, GIS(gas insulated switchgears), high-voltage transformers, high-voltage transmission lines, substations, etc. It is composed of vacuum system, compression systems, purification systems, storage system, condensing system and re-filling system. It is suitable for. The main advantage of GRT Units as following:
1. Recycled SF6 gas is directly stored into the container in the form of compressed liquid and does not need to be vented into the atmosphere.
2. Faster vacuum pumping speed, drying and filtration of SF6 gas, removing hazardous moisture and contaminants.
3. Refilling SF6 gas into electric element, reusing the existing SF6 gas minimizing the requirement of purchasing new gas.

Features
1. The use of foreign companies advanced principles and technology, advanced design, functional and reasonable structure, the operation simple and clear.
2. Adopts imported USA semi-enclosed compressor, stable performance and service life is greatly extended.
3. Vacuum system uses Germany vane vacuum pump, fast vacuum pumping speed.
4. Purification system uses USA Neil filter with two-stage built-in electric heating and efficient absorption (without frequent replacement of adsorbent), greatly improving quality of SF6 gas
5. The latest patented SF6 special instruments and valves, more reliable instrument ball valve.
6. Interlocked protective system can avoid overload, over voltage, electricity leak and prevent any damages to equipments due to operating error or power failure.
8. The equipment uses air-cooler, can be used without external water conditions.

Technical Specifications:
1. Type: Mobile trolley type
2. Power Supply: 380V, 50HZ, 3Phase (or Customized)
3. Ambient temperature:  -10℃ to 40℃
4.Ultimate vacuum ≤ 10 Pa (special requirements can be ≤ 5Pa)
5. Vacuum pumping speed: 14 to 200 m ³ / h (different model with different speed)
6. Gas filling: initial pressure <133Pa 
final pressure ≤ 0.8M Pa
Inflating speed > 6m³ / h
7. Gas recovery:  initial pressure ≤ 0.8M Pa
final pressure: standard≤0.05MP or higher ≤10 × 133Pa
recovery speed ≥12m ³ / h (different model with different speed)
recovery rate: 99.5%
8. Maximum storage pressure 4.0M Pa
9. Annual Leakage Rate <1%
10. Storage tank capacity: 100-500 kg (different model with different capacity)
11. Storage type: liquid
12. Noise ≤ 75dB sound pressure level

13. Continuously trouble-free operation> 1000 hours, cumulative trouble-free operation> 5000 hours


Model Specification:

Model

Storage capacity

Recovery speed

Vacuum pumping speed

GRT-50

50 kg

6 m3/h

14 L/s

GRT-100

100 kg

12 m3/h

28 L/s

BRT-150

150 kg

12 m3/h

54 L/s

GRT-200

200 kg

12 m3/h

54 L/s

GRT-250

250 kg

24 m3/h

54 L/s

GRT-300

300 kg

24 m3/h

100 L/s

GRT-500

500 kg

24 m3/h

100 L/s



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Subject : SF6 Gas Recovery, Purification & Refilling Units

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