• Ashida Electronics Private Limited

High-speed biased differential relay

Ashida Electronics Pvt Ltd manufactures high-speed biased differential relays with and without harmonic restrain feature. The output of the relay has two numbers of trip duty contacts. Its operating and reset times are 25 and 100 mS, respectively. Auxiliary supply of the unit ranges from 18 to 40 V and 85 to 250 V. The burden on auxiliary supply is less than 10 VA. ACDF31H and ACDT31H are the models available in size 138 x 280 mm. Technical specifications: Input CT: 1/5 AMP Setting: bias setting ? 20, 30 and 45 per cent; HF setting ? 2 to 20 N Pickup: 20 per cent of the rated C T burden: 0.2 VA (maximum) Insulation: 2.0 kv as per IS 3231 Impulse: 5.0 kv as per IS 8686 Thermal withstand: four times of rated (continuous); for 3 sec 40 times of rated