NOJA POWER VISI-SWITCH Recloser Switchgear Engineers User Guide
- June 1, 2024
- NOJA POWER
Table of Contents
NOJA POWER®
VISI-SWITCH®
PRODUCT GUIDE
OLB-400, 15KV Models
VISI-SWITCH Recloser Switchgear Engineers
OVERVIEW
The NOJA Power VISI-SWITCH® is the world’sfirst solid dielectric insulated
Load Break Switchwith visible internal isolation.
Enabled by advanced composite material manufacturing techniques and verified
througharduous aging and dielectric performance teststhe NOJA Power VISI-
SWITCH® is the start of a Load Break Switch Revolution.
Drawing on NOJA Power’s two decades of solid dielectric insulation and
switchgear designexpertise, the NOJA Power VISI-SWITCH®combines a vacuum
interrupter in series withan enclosed isolator, all housed in an advanced
polymer housing. With the Vacuum Interrupter completing the electrical make
and break, the NOJA Power VISI-SWITCH® can interrupt current orders of
magnitude greater than existing solutions. An air-insulated isolator, actuated
in series with the vacuum interrupter, provides the isolation.
The unique advantage of this product is the inclusion of a viewing window in
the insulation material. This provides operators with irrefutable evidence of
switchgear state, visible from 30 metres away. Operators can visibly verify
safe isolation of the associated circuit.
The switch is sealed in a stainless-steel tank, making the product maintenance
free for its entire 30 year service life in even the most demanding outdoor
pole-mount conditions.
The NOJA Power VISI-SWITCH® continues the commitment to zero-SF6 in
distribution switchgear, providing engineers with a reliable, safe and
environmentally friendly alternative to legacy SF6 or air insulated load break
switches.
And finally, as with all NOJA Power Switchgear, the product is Arc Fault
Vented providing added assurance of safety for both operators and the public
in the equipment’s vicinity.
Join the Load Break Switch Revolution.
KEY FEATURES
- Provides visible isolation and is environmentally friendly compared to SF6 switches
- Superior electrical endurance
- A real alternative for unreliable air break switches
- Bulletproof Glass Windows
- Visual confirmation of safe isolation (open switch) for people working on the line
- Visible break is contained for increased reliability
VISIBLE BREAK WINDOW
The Load Break Switch Revolution: Enclosed Visible Isolation
NOJA Power’s VISI-SWITCH’s patented visible break design inspires confidence
in power systems operators. The viewing window allows an unobstructed view of
the state of the switch from an operator standing on the ground. The
iridescent/reflective red paint coated isolator contact provides high
visibility through the window irrespective of time or environment.
Designed to serve in outdoor environments for 30 years without discoloration,
the viewing window is scratch resistant and can withstand extreme temperatures
and weather. The switch meets IK08 impact ratings on all parts, including the
viewing window. Insulation System
The insulation system comprises a conductor system embedded in solid
dielectric. Silicone bushings provide external insulation outside of the
powder coated stainless steel tank. Silicone Rubber Boots fitted over the
bushings provide the clearances and creepages required for the various
ratings.
Surge arrestors are mountable on all six (6) bushings and earthed through the
tank. The switch is also compatible with Explosive tail surge arrestors, and
there are surge arrestor mounting options at both the top and bottom of the
switch.
- NOJA Power VISI-SWITCH® with Visible Isolator in CLOSED position.
- NOJA Power VISI-SWITCH® with Visible Isolator in OPEN position.
INSTALLATION
The switch is mountable on timber poles with a keyhole arrangement or concrete poles using banded straps. The switch supports the following installation configurations:
- Mounted to the pole above the power line
- Mounted to the pole below the power line
Prior to pole mounting, the switch must have the mounting bracket, surge
arrestors and cable tails fitted.
The hanging bracket is mountable above or below the crossarm. The switch is
omnidirectional, giving installation flexibility in the operating arm
positioning.
A crane, pole mounted hoist or EPV are all suitable for safe lifting of the
assembled NOJA Power VISI-SWITCH. Lifting points on the switch facilitate safe
installation of the assembly. The switch is to remain within 15 degrees of
horizontal whilst lifting. The switch earthing connection is an M12 stud.
Earthing leads must meet the minimum 35m 2 cross section.
Installation only requires hand tools, namely adjustable spanners and Allen
keys. All fasteners must be capable of withstanding the maximum load applied
by a human with a standard spanner.
OPERATION
Manual operation of the NOJA Power VISI-SWITCH® is possible from the ground in
a single motion using an extended hook stick which directly reaches the
switch.
Alternatively, an insulated down rod assembly build option can be used to move
the operating mechanism further down the pole. This design allows a shorter
hook stick to be used.
TECHNICAL SPECIFICATIONS
| PART NUMBER | OLB-15-16-800 |
|---|---|
| Number of Phases | 3 |
| Frequency, fr | 50/60 Hz |
| Switch Type | General Purpose Switch |
| Switch Electrical Endurance Class | E3 |
| Switch Capacitive Switching Class | C1 |
| Switch Mechanical Endurance Class | M2 |
| Rated Maximum Voltage, Ur | 15 kV |
| Dry Power Frequency Withstand Voltage, Ud | 50 kV |
| Wet Power Frequency Withstand Voltage, 60s | 50 kV |
| Impulse Withstand phase to phase and phase to earth, Up | 110 kVp |
| Impulse Withstand across the isolator without the VI | 121 kVp |
| Dry Power Frequency across the isolator (visible gap only) | 55 kV |
| Rated Normal Current, Ir | 800 A |
| Rated Distribution Line Closed-Loop Breaking Current, Iloop | 800 A |
| Short Time Withstand Current, Ik | 16 kA – 3s |
| Fault Make Capacity, RMS | 16 kA |
| Peak Withstand Current, Ip | 42 kA |
| Mainly Active Load Breaking, Iload | 800 A |
| Rated Cable-Charging Breaking Current, Icc | 10:00 AM |
| Rated Line-Charging Breaking Current, Ilc | 4:00 AM |
| Rated Earth Fault Breaking Current, Ief1 | 31.5 A |
Rated Cable and Line Charging Breaking Current under Earth Fault
Conditions, Ief2| 20 A
Mechanical Operations| 10000
Full Load Operations| 10000
Fault make capacity operations| 5
Internal arc fault rating| 16 kA – 0.2s
Ambient temperature| -20° C to +55° C
Humidity| 0 – 100%
Altitude| 1000 m
IP Rating| IP65
Impact Rating (glass)| IK08
ORDERING CODES
Order Code Configuration
4th Position • Base Product| B Rating: 15kv,16kA Fault Make. 900 A Load
Current_ 1101‘v isolation 95kV Bit P-P and P-E
---|---
5th Position – Terminals| 1 Tenneot Tunnel Connector CON-0020
| 2 Treat NEMA Palm 12mm Threaded Holes • PAL•01
| 3 Terminal: NEMA Palm Unthreaded PAL-02
| 4 Torment NEMA Palm 14Smm holes – PAL 03
| 5 Torment NEMA • Nate PAL-05
Oth Position – Material Grade| A| 204 Grade Stainless Steel
| 8| 316 Grade Stainless Steel
7th Position- Animal Guards| | 0 No Bird Guards
| | I Bird Guards
8th Position- Surge Arrestors| | 0 No Surge Arrestors
| | I Surge Anestces Included 6 • units as per 5th position voltage lass
| |
9th Position -Mounting Brackiet| | A Mounties No BRICket
| | B Mounting: Standard Hanger OMB-40
| | C Mounting: Top mount Bracket OMB-35
10th Position –
Down Pole Assembly| | I No Gown Pole Operating Assembly
| | 2 Down Pole operating Assembly
Ilth Position -Locking Mechanism| | A No Position LocliCag Assembly
| | B Penman Lec1Cng Assembly
12th Position – Operations Counter| | 0 Na Mechanical Operations Counter
| | 1 Mechanical Operaboro Counter
13th Position-Cable TaiS| | 0 tae Cable Tat
| | 1 6 x In XLPE Cable Thils
| |
IAN Position-Language| | A Language: English
| | B Language: Portuguese
| | C Language: Spa nth
| | D Language: Pus Pan
15th Position -Motor Accessory| | 0 Manual Or4 no motor
| | Standard Motor 1 Accessory
NOJA Power Australia
CORPORATE OFFICE AND FACTORY
16 Archimedes Place, Murarrie, Brisbane Queensland, Australia 4172.
Phone: +61 (7) 3907 8777, Email:
sales@nojapower.com.au
www.nojapower.com.au
NOJA Power Brazil
OFFICE AND FACTORY
NOJA Power do Brasil Ltda, Avenida Pierre Simon de Laplace, 965A Techno Park –
Campinas – SP, Brasil
Phone: +55 (19) 3283 0041, Fax: +55 (19) 3283 0041, Email:
vendas@nojapower.com.br
www.nojapower.com.br
NOJA Power USA
SALES OFFICE
NOJA Power LLC, Office: 333 SE 2
nd
Ave., Suite 2000, Miami, FL 33131, United States of America
Phone: +1 850 890 6724, Email:
sales@nojapower.com
www.nojapower.com
NOJA Power UK
SALES OFFICE
NOJA Power Limited, Unit 2C, Whitebeam Court, Ty Du, Nelson, South Wales, CF46
6PQ, United Kingdom
Phone: +44 7487 557 599, Email:
sales@nojapower.co.uk
www.nojapower.co.uk
Distributor:
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 documentation.
NOJA-5039-03
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