Test transformer

Test transformer is usually delivered together with a control panel for separate portable high voltage test.
◇Control Panel
Usage:
YD series frequency voltage test equipment is the strictest, most direct and most effective method for identifying insulation strength of electric apparatus. It can check out those mass defects which are very dangerous.

Features:
-Supervising function: can supervise output current, instrument voltage, zero indication, power indication, working indication, timing indication, etc.
- Protection function: over-current protection
- New pattern time relay, wider timing range
- New pattern current relay, more accurate and reliable
- Compact structure and light

Specifications:
-Input voltage: 220V±10% 50Hz
- Output voltage: 0～250（430）V
- Output capacity: 0～5kVA
- Timing range: 1S～99H
- Ambient temperature: -20ºC~50ºC

◇Test transformer
Description:
Test transformer is also called step-up transformer, for insulation strength testing on various kind of electric apparatus, elements and insulation materials, checking their insulation level and over-voltage capability.

Specifications:

Item		YD-1.5/50	YD-3/50	YD-5/50
Rated capacity (kVA)		1.5	3	5
Low-voltage side	Voltage (V)	200	200	200
Low-voltage side	Current (A)	7.5	15	25
High-voltage side	Voltage (kV)	50	50	50
High-voltage side	Current (mA)	30	60	100
Measuring transformation ratio		500	500	500
Temperature raised during 60 min (ºC)		50	50	50
Impedance voltage (%)		10	10	10
No-load current (%)		<4	<4	<4
Weight (kg)		19.5	27	52
Dimension, L x W x H (mm)		200x275x640	240x300x690	250x355x710