HES-1C & HES-1Bx Transformer Tester (Bridge)

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PRODUCT DESCRIPTION

Product model:	HES-1C	HES-1Bx
Product structure:	Normal type	Portable type
Display model:	LED	LCD
Measure item:	Ratio errors & Phase errors of the CT&PT, Impedance, Admittance
Rated current:	5A, 1A
Rated voltage:	100V, 110V, 120V
Multiplier:	1/√3, 1/3, 1, 1.5, 2
Accuracy class:	±2%
Operation range:	(1%-120%).In, (20%-120%).Un
Frequency:	50/60Hz
Ratio error range:	±0.0001% ~ ±19.99%（Three positions: 1.999‰, 19.99‰, 199.9‰）
	Minimum resolution：0.0001%.
Phase error range:	0.01' ~ ±900'（Three positions: 9.00', 90.0', 900'）
	Minimum resolution: 0.01'
Impedance range:	0.001ms~ 19.99ms.
	Minimum resolution: 0.001ms.
Admittance range:	0.001 ms ~ 19.99 ms.
	Minimum resolution: 0.001 ms.
Alarm Function:	Provided the sound & light alarm function when the polarity abnormal or ratio inconsistent.
Input Load:	- On Standard CT secondary side: ≈0.11ms, COSφ=1.0 - On Test Object CT secondary side: ≈0.003ms, COSφ=1.0 - On Standard PT secondary side: ≈0.05VA (when U=100V)
Communication Interface:	Provided the RS232 serial communication interface
Power supply:	AC 220V ± 10%
Power consumption:	< 20VA