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VTVOLTAGE TRANSFORMER 11kV / 22kV / 33kV

PRODUCT GUIDE

Introduction

Voltage Transformer VT11/220-04

Voltage Transformer VT22/220-03

Voltage Transformer VT33/220-03

1. Product Guide Voltage Transformer 11kV 22kV 33kV

Introduction 1.2.

VT Mounting Diagram:

Product Guide Voltage Transformer 11kV 22kV 33kV

Model/Type reference VT11/220-04 VT22/220-03 VT33/220-03

Temperature Rise Test: Allowed Temerature rise: 60K

Primary rated voltage: 13.2kV (1.2)Secondary winding rated burden 100VATemperature rise of each windings:(AB: 6.6K) : (ab:16:4K) - 29.5°C

Primary rated voltage: 11kVSecondary winding rated burden 250VA(AB: 15.5K) : (ab:26:3K) - 30.1°C

Allowed Temerature rise: 75K

Primary rated voltage: 28.6kV (1.3)Secondary winding rated burden 200VATemperature rise of each windings:(AB: 6.8K) : (ab3:7.4K) - 30.2°C

Primary rated voltage: 33kV (1.5) (8hrs from 28.6kV)Secondary winding rated burden 200VA(AB: 14.7K) : (ab3:15:3K) - 31.6°C

Primary rated voltage: 11kVSecondary winding rated burden 500VA(AB: 11.8K) : (ab3:12.0K) - 30.8°C

Allowed Temerature rise: 65K

Primary rated voltage: 36.3kV (1.1)Secondary winding rated burden 240VA(AB:15K) : (ab:15K) - 20.1°Cmetal structure (12K)

Short Circuit withstand capability test : ab:255.1V, current 28.66A, duration:0.979s,

ab3: 239.4V, current 26.87A,duration O,954 s,

33kV, duration: 1s

Lightning Impulse Test: 75kV/1.2/50usImpulse 15 positive, 15 negative

125kV/1.2/50usImpulse 15 positive, 15 negative

200kV/1.2/50usImpulse 15 positive, 15 negative

Determination of errors Accuracy class: 5M, Rated Burden 100VA, Power factor: 0.8

Accuracy class: 5M, Rated Burden 200VA, Power factor: 0.8

Accuracy class: 5M, Rated Burden 200VA, Power factor: 0.8

Artificial pollution test: 62700Cm20.13mg/cm21,O mg/Cm2NaC1, kieselguhr, Distilled water, Dextrin29~30 °C, 2.8X4.2X2.8m3, 22kV, 15min, 3times

62700Cm20.13mg/cm21,O mg/Cm2NaC1, kieselguhr, Distilled water, Dextrin29 °C, 2.8 X 4.2 X 2.8m3, 22kV, 15min, 3times

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PD Test: 24.0kV, A:1.5pC, B:1.5pC 28.0kV, A:5.9pC, B:6.2pC 55.8kV, A:50pC, B:50pC

OSM Control Cable

VT Output Cable

OSM Control Cable

Unbroken OSM Earth to Ground Conductor

RC Controller

Bond VT to OSM Earth

Bond Controller OSM Earth

VT (Phase to Phase)

Supply Load

OSM Control Cable

VT Output Cable

OSM Control Cable

Unbroken OSM Earth to Ground Conductor

RC Controller

Bond VT to OSM Earth

Bond Controller OSM Earth

VT (Phase to Phase)

Supply Load

Type Test Summary:(IEC 60044-2 Instrument transformers - Inductive voltage transformers)

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Specification:

Mode|/Type reference VT11/220-04 VT22/220-03 VT33/220-03

Rated voltage 11kV 22kV 33kV

Rated frequency: 50/60 Hz 50/60 Hz 50/60 Hz

Insulation level 12/42/75kV 24/50/125kV 36/70/170kV

Limit output 250VA 500VA 500VA

Secondary voltage 220V 220V 220V

Ratio - 100:1 150:1

Class 5M 5M 5M

Burden 100VA 200VA 200VA

Burden power factor COSΦ =0.8 (lagging) COSΦ =0.8 (lagging) COSΦ =0.8 (lagging)

Short circuit withstand capability test 11kV 1s 22kV 1s 33kV 1s

Phase to phase 11kV/220V and 11kV/110V

22kV/220V and 22kV/110V 33kV/220V and 33kV/110V

Power frequency withstand voltage

Primary to Secondary & Ground 42kV 60s 50kV 60s 70kV 60s

Secondary to Ground 3kV 60s 3kV 60s 2.5kV 60s

Environment temp -20°C to 55°C -20°C to +55°C -20°C to +55°C

Distributor

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Phone: +49 (0) 228 8236 9408

Email: sales@nojapower.eu

Web: www.nojapower.eu

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Brisbane Qld 4172

Australia

Phone: +61 (7) 3907 8777

Fax: +61 (7) 3399 6777

Email: sales@nojapower.com.au

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United Kingdom

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Phone: +1.484-515-4880

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Web: www.nojapower.com

NOJA Power® and OSM® are registered trademarks of NOJA Power Switchgear Pty Ltd. This document is copyright and is intended for users and distributors of NOJA Power Switchgear product. It contains information that is the intellectual property of NOJA Power Switchgear and the document, or any part thereof, should not be copied or reproduced in any form without written permission from NOJA Power Switchgear. NOJA Power® and OSM® are registered trademarks of NOJA Power Switchgear and should not be reproduced or used in any way without written authorization.NOJA Power Switchgear applies a policy of ongoing development and reserves the right to change product without notice. NOJA Power Switchgear does not accept any responsibility for loss or damage incurred as a result of acting or refraining from action based on information in this User Manual.

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