CT/PT Calibrate Tester Transformer Comprehensive Tester GDHG-108A

• Customization: Available
• Type: Universal Testing Machine
• Accuracy Grade: 0.5
• Model NO.: GDHG-108A
• Load Way: Electronic Load
• Loading Method: Dynamic Load
• Display: Digital
• Control: Computer Control
• Weight: 22Kg
• Power Source: AC220V
• Power supply: AC220V±10%, 50Hz
• Output: 0-1000Vrms(20A peak)
• Accuracy of excitation measurement: 0.4% of the reading+0.6% of the range
• Dimension: 440mm*360mm*340mm
• Transport Package: Standard Export Wooden Box
• Specification: 380mm * 240mm * 180mm
• Trademark: HV Hipot
• Origin: China
• HS Code: 9030849000
• Production Capacity: 5000set/Year

Product Description

CT/PT Calibrate Tester Transformer Comprehensive Tester GDHG-108A

Description

GDHG-108A CT/PT Analyzer supports test voltage method to test bushing CTs which installed on
 transformer or inside switch-gear, suitable for the laboratory and on-site detection. Can be easily 
and conveniently done voltage current characteristic, transformer ratio, ratio and phase angle
error, load test items on CT/PT.

Features

Main Functions and Features

• Adopts the voltage detection principle, convenient for on-site detection of transformer bushing CT.
• To meet the requirements of GB1207, GB1208, GB168-47 (IEC60044-1.6) and other standards.
• Supports the detection of CT and PT.
• No external auxiliary equipment, a single machine can complete all test items.
• With high speed micro printer: real-time print the test data and characteristics curve.
• Adopts intelligent controller, operation is simple.
• All day long large LCD screen, full English menu and interface, graphical display interface.
• Automatically given CT/PT (excitation) knee point value.
• Auto display 5% and 10% error curve.
• Save 3000 groups data, it won't lost after power off.
• With USB port. The data can be saved in USB disk and read by PC(WORD format file). 

Products Features

• The use of "one key shuttle" shortcut operation, more powerful, more superior performance, more convenient to use.
• Real-time display test data and dynamic plotting curve, the graph reading is more clearly.
• European handle quick connector, lock design, large contact surface, strong current flow ability.
• The built-in closed quick plug, non shielding design, safe and reliable.
• The built-in  full power supply, strong load capacity, the current cable can be extended.
• Using a pressure injection molding engineering plastic box, solid and reliable.
• Block type structure of overall unit, dispersive stress; shock-absorbing treatment, to ensure the reliability of transportation.
• Small and light≤18kg, is very conducive to the field test

Specifications
 

Test Items

CT (protection type, measurement type)	PT
Voltage current characteristic curve (excitation characteristic)	Voltage current characteristic curve (excitation characteristic)
Auto calculate knee point value	Auto calculate knee point value
Auto display 5% and 10% error curve	Turns ratio measurement
Turns ratio measurement	Polarity determination
Ratio error measurement	Ratio error measurement
Phase measurement (angular difference)	Phase measurement (angular difference)
Polarity determination	AC withstand test
Primary current injection test	Secondary winding resistance measurement
AC withstand test	Secondary burden measurement
Secondary winding resistance measurement	Demagnetization of iron core
Secondary burden measurement
Demagnetization of iron core
Supports the detection of bushing CT

 

Main parameters 

Item		Parameter
Power supply		AC220V±10%, 50Hz
Output voltage		0-2500Vrms
Output current		5Arms(20A peak)
Accuracy of voltage current characteristic		±0.5%
Secondary winding resistance measurement	Range	0.1~300Ω
	Accuracy	±0.5%
Secondary actual burden measurement	Range	5VA~1000VA
	Accuracy	±0.5%
CT/PT angular error measurement	Accuracy	±4min
	Resolution	0.1min
CT/PT ratio error measurement	Accuracy	≤0.05
	Resolution	0.1
CT ratio measurement	Range	1-10000
	Accuracy	±0.5%
PT ratio measurement	Range	1-10000
	Accuracy	±0.5%
Operation  environment		Temperature: -10ºC-40ºC, Humidity: ≤90%, Altitude: ≤2000m
Dimension & Weight		Dimension: 380mm × 240mm × 180mm Weight: ≤18Kg