Name: Numerical Directional Over Current Relay JNP 098 - Sai Creations
Availability: InStock

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

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.

Application:

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

Description

Ratings

Voltage rating (Un )	110V AC 63.5V AC
Frequency rating	50Hz
Aux. Supply	20 to 60V DC 75 to 150V AC / DC 175 to 300V DC 185 to 250V AC

Settings:

Inverse time curve	3 Sec normal inverse curve 1.3 Sec normal inverse curve Very inverse curve 1.5s 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 voltage 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.

Ordering Information

Relay type	JNF 060
Voltage rating	110V or 63.5V
Aux. Supply	20 to 60V DC or 75 to 150V AC/ DC or 175 to 300V DC / 185 to 250V AC

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Numerical Directional Over Current Relay JNP 098

Features

Principle of Operation:

Application:

Description