Wuhan Sangao Electrical Test Installations Limit Co.
Our company supplys different kinds of products. High quality and favaroble price. We′re pleased to get your Inquiry and we will come back to as soon as possible. We stick to the principle of "quality first, service first, continuous improvement and innovation to meet the customers" for the management and "zero defect, zero complaints" as the quality objective. To perfect our service, we provide the products with good quality at the reasonable price.
- 027-84633755
- 027-84620387
- sales@whjhsb.com
- C-17, Huading Industrial Park
Hannan District,
Wuhan City, Hubei Province
China
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product
High Voltage Isolation Switch Contact Pressure Tester
WA1401
Wuhan Sangao Electrical Test Installations Limit Co.
Isolation switch is the high voltage switch equipment, it was large and frequently use in power system . The outdoor isolating switch is the only completely exposed in the atmospheric environment electrical equipment, It is also a electrical equipment affected by climatic conditions influence the most direct and most serious. The operating conditions is relatively poor, It is easy to generate fault of mechanical or electrical. Especially the finger contact part is easy to be affected by rain, dust and harmful gas invasion, resulting in poor contact caused fever, provide the spring with contact pressure due to heating and annealing for reducing the pressure, so that more cause finger heat form vicious spiral eventually burn out finger accident. In maintenance often only pay attention to replace the obvious failure and fracture of spring, but spring to reduce the pressure can not judge and replacement, so again in the operation, each finger current distribution by the pressure difference, The greater the difference between the current distribution is not uniform, long-term operation will occur is bad and the overheating. Fever finger will be vicious spiral, a finger contact bad will spread over the entire bad contact. At the same time, there are a lot of isolating switch contact pressure can be adjusted, if in maintenance adjustment pressure is not enough or each finger to adjust the pressure difference will also appear afore-mentioned phenomena.
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product
HV Testing Transformer
Wuhan Sangao Electrical Test Installations Limit Co.
Inflatable Ultralight Non Partial Discharge Testing Transformer is a high-end testing transformer which firstly marketed in China by our company. The high-light characteristic of the equipment reflects the smallness in size, lighter in weight clean, oil-free, unnecessary static of field investigation, longer working life without maintenance and slightness in non-partial-discharge. It is used for the insulators' voltage-resistance testing.Major technical characteristicVoltage unit50.100.150.200.250.300.500kVCapacity unit3.5.10.15.20.25.30.50.100.150.200.300.500.1000kVAInput voltage220, 380V uniphase 50HzImpedance voltage6%≤No-load current8%≤Wave form distortion3%≤Annual gas leakage1%≤
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product
HV Test Transformer
GTU-800KVA/220KV
Wuhan Sangao Electrical Test Installations Limit Co.
SF6 gas -filled testing transformers are especially designed for GIS in the factory and on-site test,and for testing all GIS switchgears and GIS components such as insulators,insulating tension pole,GIS voltage transformer and so on,the PD test can be performed under the general environment because of the merits of encapsulation ,the PD level of our equipment can be lee than 3pC,and it can be added a HV bushing to perform the withstand voltage test at the same time.
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product
Inflatable High Voltage Testing Transformer
GTU-250KVA/500KV
Wuhan Sangao Electrical Test Installations Limit Co.
SF6 gas -filled testing transformers are especially designed for GIS in the factory and on-site test, and for testing all GIS switchgears and GIS components such as insulators, insulating tension pole, GIS voltage transformer and so on, the PD test can be performed under the general environment because of the merits of encapsulation, the PD level of our equipment can be lee than 3pC, and it can be added a HV bushing to perform the withstand voltage test at the same time.Small and compact dimensions resulting in minimum space requirements. Light-wight components. Rugged construction to withstand long transportation stresses. Direct flanging to the test object. High safety for tester because of encapsulation of all HV parts. Large range of application in conjunction with HV bushing for withstand voltage test. Built-in HV measuring capacitor and coupling capacitor. Built-in HV disconnecting switch to separate multipath test object connector to ensure the safety of HV testing.
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product
Isolating Transformer
SG-IT
Wuhan Sangao Electrical Test Installations Limit Co.
Features and benefits:1.High level of isolation2.High quality neutral-ground bond3.High level of common-mode noise rejection4.Conversion from Delta to Wye or the other way around5.Easy to change voltage taps6.Custom design for specific system
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product
Isolation Transformer
GLB100KVA/400V
Wuhan Sangao Electrical Test Installations Limit Co.
This device is designed for reducing the interference from all power line and ensured the PD background less than 1pC when performing PD test.The capacity of Isolating transformer is comply with voltage regulator.
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product
Large Earth Resistance Tester
WA 180
Wuhan Sangao Electrical Test Installations Limit Co.
WA180 Type Large earth resistance tester,To test substation earthing network(4Ω), Hydroelectric and Thermoelectric Power Plant,microwave(10Ω),lighting rod(10Ω)etc.Using new type variable frequency AC power supply, And adopts microcomputer control and signal processing measures, Solved the problem of interference of the testing process, To simplify the test procedure, To improve the precision and accuracy of the test results, reducing test personnel's the labor intensity and the cost of testing.The instrument can be used to test all kinds of power frequency earth resistance,contact voltage,step voltage etc frequency power parameters and soil resistivity. The instrument adopts the different frequency Anti-interference resistance technology, under strong interference environment accurately measured the frequency under 50Hz data.The maximum test current is 5A,it will not cause the earth device potential too high,and it also has strong anti interference ability, so it can be measured in the case of non power.
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product
Oil Immersed Test Transformer
SG-YD
Wuhan Sangao Electrical Test Installations Limit Co.
AC and DC test oil immersed transformer.Traditional oil immersed test transformer is used to do power frequency withstand voltage and DC current withstand voltage test for variety kinds of high voltage electric device, insulating material.YD series oil transformer, also known as test booster, which test insulation strength under specified voltage for various electric products, components, insulation materials. It can test products insulation level, find insulation defect and judge overvoltage ability. It is widely used in power station, power supply and distribution system and research institute.
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product
Oil Withstand Voltage Tester
TE 6080
Wuhan Sangao Electrical Test Installations Limit Co.
TE6080 Automatic insulating Oil Tester, in accordance with IEC156, realizes the full automatic determination of insulating oil dielectric strength, make the original tedious and dangerous work become safe and easy. The instrument adopts special software and hardware anti-interference measures to eliminate the competing products prone to crash phenomenon. The new design will reduce the volume to the 1 / 2 of original, easy to carry and operate on-site.
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product
Partial Discharge Analysis System
MPD 500
Wuhan Sangao Electrical Test Installations Limit Co.
Partial Discharge Analysis System
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product
Partial Discharge Detection System
JFD-2000
Wuhan Sangao Electrical Test Installations Limit Co.
Ease of use was the mandate to our engineering and design teams. The JFD-2000 uses the worldwide standard Windows operating system and an intuitive control and display panel to allow even inexperienced operators to learn quickly with minimal training. In addition, advanced features such as higher accuracy, auto-mated calibration, data analysis, and customized test recording, are standard. Use as much or as little as you like.
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product
PD-Free High Voltage Testing Transformer
YDQW
Wuhan Sangao Electrical Test Installations Limit Co.
Gas-filled HV Testing Transformer is a high-end testing transformer which firstly marketed in China by our company. The high-light characteristic of the equipment reflects the smallness in size, lighter in weight clean, oil-free, unnecessary static of field investigation, longer working life without maintenance and slightness in non-partial-discharge. It is used for the insulators' voltage-resistance testing.
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product
PD-Free High Voltage Test Transformer
Wuhan Sangao Electrical Test Installations Limit Co.
PD-free HV Testing Transformer is a high-end testing transformer which firstly marketed in China by our company. The high-light characteristic of the equipment reflects the smallness in size, lighter in weight clean ,oil-free,unnecessary static of field investigation ,longer working life without maintenance and slightness in non-partial-discharge. It is used for the insulators' voltage-resistance testing.
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product
PD-Free High Voltage Transformer
YDQ
Wuhan Sangao Electrical Test Installations Limit Co.
PD-free HV Testing Transformer is a high-end testing transformer which firstly marketed in China by our company. The High-light characteristic of the equipment reflects the smallness in size, lighter in weight clean, oil-free, unnecessary static of field investigation, longer working life without maintenance and slightness in non-partial discharge. It is used for the insulators' voltage-resistance testing.
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product
800 Kv High Voltage Testing Transformer
GTU-800KVA/800KV
Wuhan Sangao Electrical Test Installations Limit Co.
SF6 gas -filled testing transformers are especially designed for GIS in the factory and on-site test,and for testing all GIS switchgears and GIS components such as insulators,insulating tension pole,GIS voltage transformer and so on,the PD test can be performed under the general environment because of the merits of encapsulation ,the PD level of our equipment can be lee than 3pC,and it can be added a HV bushing to perform the withstand voltage test at the same time.
