Numerical Unbalance Voltage Relay JNV 026

OVERVIEW

    Features

  • Software based design
  • Trips on neutral snap
  • Programmable Active / Inhibit facility
  • Programmable Rated voltages
  • Wide range of time delay setting

Application:

JNV 026 is a numerical unbalance voltage relay, with under voltage(UV), over voltage(OV) and Neutral snap which is used for three phase systems etc.,

Numerical Unbalance Voltage Relay JNV 026

Principle of Operation:

JNV 026 measures and displays 3 phase voltages (R,Y,B phases). It calculates percentage of unbalance voltage and if it exceeds the set unbalance voltage, the relay operates after the elapse of operating time. Under voltage fault will be detected when voltage on any phase is less than the set Under voltage limit, the relay operates after elapse of under voltage operating time. Over voltage fault is detected when voltage on any phase is more than the set Over voltage limit, the relay operates after elapse of over voltage operating time. Neutral snap will be detected when Neutral is disconnected.

 

SPECIFICATIONS

Ratings:

Rated voltage and
Aux. supply

:

220V AC / 110V AC

Frequency

:

50Hz

     

Settings:

Rated voltage ( Vn)

:

220 to 250 V in steps of 10V ( for 220V rated)
110 to 125V in steps of 5V ( for 110V rated)

Unbalance voltage

:

1 to 10% in steps of 1%

UBV time delay

:

0 – 300s in steps of 1s

Under voltage

:

Vn -50V in steps of 1V
(for rated voltage 220V )
Vn -25V in steps of 1V
(for rated voltage 110V )

UV time delay

:

0 – 300s in steps of 1s

Over voltage

:

Vn +25V in steps of 1V for rated voltage
220V & 110V

OV time delay

:

0 – 300s in steps of 1s

Active / Inhibit facilities

:

Active / Inhibit facilities for UV, OV, UBV

 

 

 

Mechanical Design :

Weight

:

2500gms. Approx.

Case Size

:

144 mm, depth 117mm

Installation

:

Flush mounting

Panel cutout

:

138mm x 138mm

     

Accuracy:

Operating value

:

±5%

Operating time

:

±5%

     

Contact Ratings:

Rating

:

10A at 24V DC/ 230V AC

     
 

Contact Durability :

Loaded contact

:

10,000 operations minimum

Unloaded contact

:

100,000 operations minimum

     

Burden:

Aux. Supply

:

10 VA max.

Voltage Input

:

0.1 VA max.

     
 

Numerical Unbalance Voltage Relay JNV 026

 

DOWNLOADS

Numerical Unbalance Voltage Relay JNV 026

Catalogues:

DOWNLOAD

Operating Manual:

DOWNLOAD

 

Numerical Unbalance Voltage Relay JNV 026

 

ORDERING INFO.

Ordering Information:

Relay type

:

JNV 026-X ( rated 220V AC with Neutral snap)

   

JNV 026-X1 ( rated 220V AC with Neutral snap & Phase reversal)

   

JNV 026-x2 (rated 110V AC with Neutral snap &
phase reversal)

For JNV 026-X :

1. Separate output relay for Under voltage and Neutral snap faults.
2. Separate output relay for Over voltage & Unbalance voltage faults.

For JNV 026-X1 & JNV 026-X2 :

1. Common output relay for Under voltage, Over voltage, Unbalance voltage, phase reversal & Neutral snap faults.

 

 

 

 

Numerical Unbalance Voltage Relay JNV 026

 

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