SF6 leak Monitoring System For GIS Air Tightness Test_北京杜克泰克科技有限公司

SF6 leak Monitoring System For GIS Air Tightness Test

SF6 leak Monitoring System For GIS Air Tightness Test

Introduction

Power and T&D Industry is developing rapidly with more and more high-voltage and ultra-high-voltage switchgear used, and the demand of GIS is soaring with it. SF6 is widely used in GIS as a good insulation and interruption gas. The compartment tightness of GIS is very critical to its lifetime and the maintenance cost, and the leakage of SF6 will impact the safety and health of staffs and the global warming, too.

There are international and national standards Test Qm method to specify the tightness test of GIS, such as: GB50150-2006 Standard for hand-over test of electric equipment, GB/T 11023-2018 Test method of SF6 gas tightness for high-voltage switchgear , IEC62271-1 Common specifications for SF6-insulated and air insulated high voltage switchgear and control gear，CIGRE TB430 SF6 Tightness Guide, etc.

Our Solution

We offer an accurate, reliable and effective solution by combining the accumulation volume (buckle cover)method with highly sensitive Photoacoustic trace SF6 monitoring system.

Not only can it give the leakage amount and leakage rate in the accumulation volume, also it is a real time measuring system, which can judge if the tightness test is failed in short period of time. Compared with the portable sniffers, it reduces the workload incredibly and makes the tightness test in a more automatic and intelligent way.

The whole monitoring system is composed of Photoacoustice Trace SF6 gas analyzer, multipoint sampler, tubing and control software.

Upon request, we can also customize the solution to include air tightness test chamber and the buckle cover.

Features

l Photoacoustic Spectroscopy with Patented cantilever pressure sensor

l Low detection limit，high accuracy(ppb)

l Fast response time (3~10s)

l Easy to use（embedded APP）

l Multipoint sampler, extended 12 to 64 sampling point

l No pre-treatment, No consumables, No carrier gas

l Customize the tightness test chamber upon request

l Customize the buckle cover upon request

Application

l GIS manufacturing and quality control

l GIS installation and inspection

l GIS operation and maintenance

Specifications

SF6 Gas Monitoring
Measurement range	0.1 ppb-10 ppm
Dynamic rate	1:100000
Detection limit	0.1 ppb
Accuracy	2%
Response time	3-10s
Calibration	Factory calibration done before delivery
Operation Environment
Temperature	0℃ ~ +45℃
Humidity	Below 90% RH, no condense
Pressure	Ambient pressure
Enclosure	IP20 (IEC 529)
Vibration test	33 Hz strong vibration
Storage Environment
Temperature	-20℃ ~ +60℃
Sampling Environment
Temperature	0 ~ +49℃ no condense
Pressure	930 mbar ~ 1100 mbar
Humidity	Tdew +8 ℃ or higher
Flow rate	60 ml/min ~ 300 ml/min
Particle	< 1 μm
Dimension	48.4cm Wx13.9cm Hx40.5cm D (19.1in Wx5.5in Hx16.0in D)
Weight	Appx. 13 kg
Connector	Specified quick plug for 3mm diameter tube，various plugs can be ordered upon request
Electric parameter
Power rating	100 ~ 240VAC, 50 ~ 60 Hz
Power consumption	100W
Interface	Ethernet、USB、AK
The sampling points equipped with monitor, fine particle filter equipped
Pump in-built, max. 100m sampling distance, PC embedded with 7" front display.
Data storage appx. 2GB，up to 2-year data (@sampling continuously interval 15s）
Data transfer via USB disk, USB port, Ethernet or Com port
Compensate the interference from water vapor, particle automatically
To work with multipoint sampler to extend to 12/24/32/64 channels
Low adsorption SiO2 coated stainless steel valve set is used in multipoint sampler
Working time for each channel can be defined 1~99min in multipoint sampler
GIS tightness test chamber to be ordered upon request
GIS buckle cover to be ordered upon request