Numerical Directional Over Current Relay JNP 098

OVERVIEW

    Features

  • Programmable characteristic angle
  • Programmable operating characteristics
  • High speed directional control
  • Low Burden
  • Trip test facility
  • Choice of four inverse curve and definite time
  • Programmable for directional / non-directional
  • RS232 communication port
  • RS485 communication port (optional)
  • History of 5 latest faults
  • Self supervision facility

Application:

The relay provides time graded directional phase and earth fault protection of generators, transformers, capacitors, etc.

Numerical Directional Over Current Relay
JNP 098

Principle of Operation:

JNP 098/096/096P provides directional over current protection for power systems. Relay operating time is determined by selecting definite time characteristics or one of the four inverse time characteristics i.e. (3s normal inverse, 1.3s normal inverse, very inverse and extremely inverse). The operating region is defined by the characteristic angle selected. The relay measures the current and voltage from each of the phases and if the phase angle in the operating zone of the relay, then the relay extends trip signal.

 

SPECIFICATIONS

Ratings:

Voltage rating (Un )

:

110V AC
63.5V AC

Frequency rating

:

50Hz

Aux. Supply

:

1) 20 to 60V DC
2) 75 to 150V AC / DC
3) 175 to 300V DC
    185 to 250V AC

 

 

 

Settings:

Inverse time curve

:

1) 3 Sec normal inverse curve
2) 1.3 Sec normal inverse curve
3) Very inverse curve 1.5s
4) Extremely inverse curve 0.1s

Definite time

:

0.1 to 25.0 Sec in steps of 0.1s

Directional Feature

:

Separate Choice of Active / Inhibit mode
for over current & Hi-set.

Characteristic Angle

:

Phase – 30°, 45°, and 60° lead
E/F – 12.5°, 30° and 45° lag

Over Current Setting

:

Phase – 50 to 200% in steps of 5 %
E/F – 5 to 80% in steps of 1%

TMS

:

0.02 to 1.0 in steps of 0.01
(Separate for Phase & E/F)

Hi-set setting

:

Choice of Active / Inhibit Mode
Phase – 200 to 3200% in steps of 100%
E/F – 50 to 800% in steps of 50%

Programmable Reset Mode

:

Hand / Self Reset

 

 

 

Mechanical Design :

Weight

:

App. 7 Kgs.

Case Size

:

Fascia 152 x 296 mm, Depth 250 mm

Installation

:

Flush mounting

Panel cutout

:

146 x 264 mm

     

Standard Compliance :

Accuracy Test

:

IEC 60255-3

Insulation Test

:

IEC 60255-5

     

Accuracy:

Voltage

:

±5%

Operating time

 

±5%

 

 

 

 

Contact Ratings:

Output contacts

:

10A at 24V DC / 230V AC

     

Contact Durability :

Loaded contact

:

10,000 operations minimum

Unloaded contact

:

100,000 operations minimum

     

Over Load Rating:

AC current input

:

2 times Rated continuous
20 times Rated for 3 secs.
40 times Rated for 1 sec.

     

Burden:

AC current input

:

0.1VA Per phase (5A Rating)
0.05VA per Phase (1A Rating)

AC voltage input

:

2VA for all phases and E/F

Aux. Supply

:

Less than 4W (Non Operated)
Less than 10W (Operated)

INSULATION

1. 2KV RMS, 50 Hz for 1 minute / 2.5 KV for 1 sec . Between all terminals and earth.
2. 1KV RMS, 50 Hz for 1 minute across open contacts.

 

Numerical Directional Over Current Relay
JNP 098

 

DOWNLOADS

Numerical Directional Over Current Relay JNP 098

Catalogues:

DOWNLOAD

Operating Manual:

DOWNLOAD

 

Numerical Directional Over Current Relay
JNP 098

 

ORDERING INFO.

Ordering Information:

Relay type

:

1) JNP 098 (3O/C + E/F)
2) JNP 096 (2O/C + E/F)
3) JNP 096P (3O/C)

Current rating

:

1A or 5A

Auxiliary Supply

:

20 to 60V DC
75 to 150V DC
175 to 300V DC / 185 to 250V AC

 

 

 

 

Numerical Directional Over Current Relay
JNP 098

 

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