Protection Relay Test Set , Single Channel Relay Protector Tester , One AC Source & One DC Source
I. Product description
JBY-II Single Channel Relay Protector Tester is one portable tester with built-in one AC current /voltage source and one DC current/voltage source, it can test current relays, voltage relays, coincidence relay, intermediate relay, and differential relay; The instrument is equipped with one constant output and separate voltage and current source; it is digital display with visual readings , and structure compact, lightweight, easy to operate.
 
II. Features
III. Technical index:
| Output | 
			 AC source output: 0~5A /12V 0~150A /12V 0~250V /4A 
 DC source output: 0~350V /4A 0~20A /12V 0~500 mA /12V 
 Auxiliary DC source: DC 220V /0.5A 
 Time range:0.01~99.99S  | 
			
			 Test accuracy  | 
			
			 0.5% RD±2d 
  | 
		
| Power supply | AC 220V , 50/60Hz | 
V.Working conditions