Automatic Transformer Calibration System (GDHT)

• Model NO.: GDHT
• Quadrature Component: 0.001~700.0 Resolution:0.001
• Admittance(Ms): 0.0001~20.0 Resolution:0.0001
• Cophase Component: ΔX=±(X×2%+Y×2%±dx)
• Overall Dimension: (L 375×w 330×h 140)mm³
• Transport Package: Wooden Case
• Specification: ISO, SGS
• Trademark: HV Hipot
• Origin: Wuhan China
• HS Code: 9030841000
• Production Capacity: 500PCS/Year

Product Description

GDHT-6 Automatic Transformer Calibration System is used to test the technical performance of on-site or laboratory voltage PT and current CT.


Features

1. Easy operation, high automation.
2. Menu management, data input simple and convenient.
3. 320X240 LCD, background light, easy to use.
4. Can display dial indicator, ratio error and angular error.
5. Control modes: By PC, auto and manual.
6. Auto switching the load cases to reduce the human operation and reduce the error.
7. Auto judge the polarity and turns ratio error.
8. PC software can show the error curve.
9. PC software with function of virtual opening.
10. Solve S level measuring problem.
11. Switching measuring range automatically.
12. Solve unstablity problem of the Rc phase-shift circuit
13.light weight, convenient for outdoor operation.


Specifications
 

Power supply	AC220V±10% 50Hz±10%
Working environment	Temperature 0~+40 degree
Relative humidity	≤85%(25 degree)
Regulator control output capacity	7kVA(250V 30A)(Extension by option)
Regulator precision	Better than 0.04V
Measuring range	Cophase component(%):0.0001~200.0 Resolution:0.0001
	Quadrature component:0.001~700.0   Resolution:0.001
	Impedance(Ω):0.0001~20.0    Resolution:0.0001
	Admittance(ms):0.0001~20.0    Resolution:0.0001
Basic error	Cophase component:ΔX=±(X×2%+Y×2%±Dx)
	Quadrature component:ΔY=±(X×2%+Y×2%±Dy)
	"X"\"Y"__Value show on instrument
	"Dx,Dy"__Quantization error of instrument
	Dial indicator:1.5
	Output current and voltage:2
Woking range	Current	(1%-149%)In (In =5A)
		(5%-149%)In (In =1A)
	Voltage	(5%-149%)Un (Un =100V,150V,100V/)
		(5%-149%)Un (Un =100V/3)
Working load	Current:TO-TX<0.12Ω cosΦ=1
	Voltage:a-x<0.25VA (100V)
Polarity error	More than 5% of rated working current(voltage),error over than 180%, such as polarity.
Turns ratio error	More than 5% of rated working current(voltage),error over than 30% but less than 180%, shall display turns ratio error.
Insulation and HV test	Terminal TX connect with( )
	Power sockets shell can withstand 1.5kV,1min HV
Overall dimension	(L 375×W 330×H 140)mm³
Weight	10kg