The Auto Reset Panel System is designed to restore power supply after nuisance earth leakage trippings as a result of lightning activity or other isolated events.

In unmanned and remote installations such as Telecommunication Exchanges, Relay Stations, Water Pump Stations and other facilities, nuisance earth leakage tripping would cut off power supply to sensitive equipment, control equipment, lighting and air conditioning systems which will lead to service disruption. The commercial loss and the maintenance cost as a result of these nuisance trippings is high.

The auto reset panel shall automatically restore the power supply after a fixed time delay from a tripping. In the event of true earth leakage fault in the system, the panel shall lockout after preset number of trippings/resets occurs within a specified time period, in which human intervention is required to find the leakage fault before manually resetting the system.

External View (Outdoor Type) Earth Leakage Relay

Technical Specification:

(1)

Auto Reset DB

Single Phase & Three Phase Type

(2)

Incoming voltage

3f 4W  415/240Vac +10%/-10% 50Hz

(3)

Adjustable trip time setting

0.1, 0.2 to 1.0sec (0.1sec step), 1.5, 2, 3, 4, 5, 6, 8,10sec

(4)

Adjustable nos. of sequential trips before lockout (within trip counter reset period)

1, 5, 10, 20 counts

(5)

Auto trip reset time

5 sec (fixed)

(6)

Adjustable trip counter reset time

5 min, 10 min, 20 min, 60 min

(7)

Type of enclosure

Weather proof IP65 or Indoor wall mount type

(8)

Contactor Rating

Rating to suit customer’s requirement

 

Electrical Specification:

 

 

Input voltage

240 Vac

415 Vac

Input voltage range

±  10%

±  10%

Input Frequency

50Hz

50Hz

Input frequency range

± 10%

± 10%

Breaker rated capacity

40A & 60A

40A & 60A

Max. surge voltage

5kV (8/20ms)

5kV (8/20ms)

Operational temperature

100C TO 750C

100C TO 750C

Relative humidity

0 to 90% non condensing

0 to 90% non condensing

Automatic recovery

Yes

Yes

Safety 30 min. per cycle setting

Yes to all models

Yes to all models

Presetting of Auto recovery time

Factory setting *

Factory setting *

Presetting of Auto recovery frequency

Factory setting *

Factory setting *

Selection of auto recovery time

Factory setting *

Factory setting *

Selection of auto recovery frequent

3 and 5 times

3 and 5 times

Appearance:

 

 

Protection device

ELR

ELR

Color

Light beige

Light beige

Material

SPCC (cover)

SPCC (cover)

Weight

2.5kg

2.5kg

Dimension (HxWxD)

243x170x95mm

243x170x95mm

LED Display

2 indicator **

2 indicator **

3 Digit LED Display

Yes to all models

Yes to all models

Volt free dry contact (lockout alarm)

Yes

Yes

 

Copyright Vy Engineering 2004