产品名称：OFS D1频率继电器

OFS D1频率继电器

Introduction: It is a Over Frequency Relay. It is best suitable for monitoring supply over frequency or generator over speed. It is used in single phase system supply, where Over Frequency monitoring or protection is required. It can be Rail mounted & have individually settable over frequency settings, thus increasing their utility as entire System Protection Relays. Added facility of adjustable Trip Time Delay and Power-ON Delay has also be provided, alongwith separate indications. It can be used as over speed monitor of DG sets.

Features: · Monitors connected load for Over Frequency · On Delay. (Fixed 2-5 Sec.) · Trip Delay. (Adjustable 1-10 Sec.) · Adjustable Over Frequency settings (50-70 Hz). · Auto Reset. · Sleek DIN Rail mounted housing.

Application Areas: Generator control panels AMF control panels Power Distribution panels Induction heater control panels

Technical Specifications:

Sr. Parameter Specifications 1 Supply Voltage System 110 / 240 / 380 / 415 V AC ±20%; Auxiliary — 2 Ext. Input 110 / 240 / 380 / 415 V AC ±20% 12 / 24 V DC 3 Output contact 1 CO 4 Trip setting Under Current —; Over Current —; Under Frequency N.A.; Over Frequency 50 Hz - 70 Hz; Under Power —; Over Power —; Cos-Ø —; Reverse Power — 5 Input Current Range — 6 Power On Delay 3.5 secs. ± 1.5 sec (fixed) 7 Trip Time Delay 1 - 10 secs. (adjustable) 8 Resetting Auto 9 Weight 450 gms. 10 Dimensions (mm) Overall (L x W x D) 76 x 30.5 x 117.5; Mounting (L x W) 68 centre to centre