Oil Immersed Voltage Stabilizers

IVSI Series - Brushless - Three Phase - Industrial Grade Protection - 500 to 3000 kVA

Designed for maximum reliability, making them ideal for the toughest of applications, IVSI Brushless Oil Immersed AC Automatic Voltage Stabilizers and Regulators enhance power quality, providing industrial - grade regulation and power protection.
Features
	Brushless Oil-Immersed Magnetic Induction Design
	Step-Less Automatic Voltage Control
	Wide range of permissible input voltage windows (±10% to ±30%)
	±1.5% Output Voltage Accuracy
	Virtually Maintenance Free
	Inbuilt TVSS - Transient Voltage Surge & Spike Suppression
	Independent Phase Control
	High Overload Capability
	Lightning Surge Protection
	Over / Under Voltage Indication
	Voltage & Current Metering
	Optional Main System Switch Board
	2 Years Warranty

To learn more please check-out the series listings below

Watch the Video

The Ranges

Series	Voltages
H (4 Wire)	International Voltages (380 - 415V)
HD (3 Wire)	International Voltages (380 - 415V)
H-X468 (4 Wire)	US Voltages (440 - 480V)
HD-X468 (3 Wire)	US Voltages (440 - 480V)

For full Series details see below.

H SERIES - 380 to 415V
HD SERIES - 380 to 415V
H-X468 SERIES - 440 to 480V
HD-X468 SERIES - 440 to 480V

Introduction

IVSI-H-3P-S Series - 500 to 3000 kVA
Three Phase Oil Immersed Magnetic Induction AC Voltage Stabilisers

Input / Output: 380/220V, 400/230V & 415/240V AC - 50/60Hz

Standard Permissible Input Voltage Window Options

IVSI Input Voltage Window

> View Input Voltage Swings

In situations where there is a reasonably good mains supply, a Stabilizer offering an input variation swing of ±10 % or ±15% (S10 / S15 Models) will usually be more than acceptable, but in more remote locations, or countries where the national supply infrastructure is less developed, variations of ±20% or greater may be needed to be accommodated by the Stabilizer.

TIP - The wider the permissible input voltage window you wish the Stabiliser to accomodate and the more accurate the voltage you require on the output, the more expensive the Stabiliser. So, when selecting the most appropriate and cost efficient model for your application, it pays to know the state of the utility mains supply on site and the designed input voltage tolerances of the load equipment you wish to protect.

Downloads
General Series Catalogue:
MSB Data Sheet:
Guide Specification:

Pricing
To obtain a personal price, or to discuss further how we might be able to help your organisation, please feel free
to either e-mail us
or call us on +44 (0)870 240 6162

General Technical Specification

Technology:

Magnetic Induction Design - Brushless Oil Immersed

Permissible Input Voltage Window Options:

380/220V or 400/230V or 415/240V – Three Phase 4 Wire (3 Phase + Neutral + G/E)
Output Voltage Accuracy	±1.5%	±3%	±5%	Ratings	Datasheet
*S10 Models - Input Window	± 10%	-12% /+13%	-14% /+16%	500 to 3000 kVA
*S15 Models – Input Window	± 15%	-17% /+18%	-19% /+21%	500 to 3000 kVA
*S20 Models – Input Window	± 20%	-22% / +23%	-24% / +26%	500 to 3000 kVA
*S25 Models – Input Window	± 25%	-27% / +28%	-29% / +31%	500 to 2500 kVA
*S30 Models – Input Window	± 30%	-32% / +33%	-34% / +36%	500 to 2500 kVA

Output Voltage:

Presettable for any voltage between 380/220V, 400/230V or 415/240V (Customer to Specify) – Three Phase 4 Wire (3 Phase + Neutral + G/E).

The permissible input voltage window is relative to the pre-set output voltage.

Output Voltage Accuracy:

± 1.5%, ± 3% or ± 5% - auto selection based on input voltage swing.

Frequency:

47 to 65 Hz

Response Time:

< 1.5 ms

Correction Time:

A 10% supply variation will be corrected to within 2.5% in typically 0.6 to 1 second - dependent on the reselected permissible input voltage swing and system rating.

Efficiency:

>97%

Power Factor:

Any Lagging to 0.95 leading

Surge Ratings:

10 x max current rating for 2 seconds

3 x max current rating for 1 minute

2 x max current rating for 5 minutes

Surge Suppression:

TVSS - Protects loads against high energy Spikes and Transient Voltages

Total Harmonic Distortion:

< 1%

Independent Phase Control:

Maintains each phase voltage stable irrespective of load unbalance, even up to 100% load unbalance.

Insulation Oil:

Uninhibited Transformer Oil conforming to BS EN 60296 (2004).

Environment:

Temperature Range -15°to 45° C

Derate by 2% for each additional °C up to max 60°C

Suitable for indoor tropical use 95% RH (non-condensing)

Maximum altitude 1000m. Derate by 2.5% for each additional 500m.

Paint Colour:

RAL 7032 (Grey - Powder Coat)

Construction:

Enclosures to IP20 (NEMA 1 Style), BS EN 60529

Conformance:

Complies with BS EN 55022 and the relevant parts of BS EN 61000 series of standards

CE Conformity:

CE Marked - being fully compliant with European Union Directives 2004/108/EC (replaced EMC Directive 89/336/EEC from July 2009) and 2006/95/EC (The Low Voltage Directive in force from January 2007)

Standard Warranty:

Two (2) Years / Twenty Four (24) Months from date of supply. Extendable, by purchasing an Extended Warranty, to Five (5) Years / Sixty (60 Months).

Standard Features:

Loss of Phase and Phase Reversal Alarm

Over Temerature Alarm

Over Voltage and Low Voltage Alarms

Voltmeter / Phase Selector Switch

Ammeter / Phase Selector Switch

No-Volt Free Contacts (N.C & N.O)

Lightning Surge Arrestors

Oil Pressure Release Valve

Supplied Oil Filled

Optional Add-On Features:

Earth Fault Relay Alarm

Optional Main System Switch Board (MSB):

Main System Switch Board - with Input Circuit, Output Circuit Breaker, Manual Maintenenace Bypass Switch & Metering and Interlocking Protection. 3 Pole as standard, with 4 Pole option.

Optional Outdoor Enclosure:

OIVSI SERIES - IVSI Stabilisers housed in refurbished 20 ft / 40 ft ISO Containers - suitable for outdoor / external environments. Please contact us for further details.

Please Note – These Stabilisers are not designed to support / protect voltage “back feed” applications, where energy is required to be also fed back into the utility supply.

S10 Models - Input Voltage Swing +/-10% - 500 to 3000 kVA

Model:	RATING	AMPS (Per Phase)			Dimensions	Weight
	kVA	@380V	@400V	@415V	W x H x D(mm)	(Kgs)
IVSI-500H-3P-S10	500	759	721	695	2575 x 1598 x 930	2200
IVSI-750H-3P-S10	750	1139	1082	1043	2575 x 1688 x 930	2700
IVSI-1000H-3P-S10	1000	1518	1443	1390	2575 x 1818 x 930	3000
IVSI-1250H-3P-S10	1250	1898	1803	1738	2575 x 1848 x 930	3450
IVSI-1500H-3P-S10	1500	2278	2164	2086	2875 x 1780 x 1180	4200
IVSI-2000H-3P-S10	2000	3037	2885	2781	2875 x 1900 x 1380	5320
IVSI-2500H-3P-S10	2500	3797	3607	3447	2875 x 1900 x 1460	6400
IVSI-3000H-3P-S10	3000	4556	4328	4172	2965 x 2006 x 1620	8380


Note:	Other voltage configurations available upon enquiry / order.
	Optional Accessories added may affect dimensions and weights - subject to confirmation.

S15 Models - Input Voltage Swing +/-15% - 500 to 3000 kVA

Model:	RATING	AMPS (Per Phase)			Dimensions	Weight
	kVA	@380V	@400V	@415V	W x H x D(mm)	(Kgs)
IVSI-500H-3P-S15	500	759	721	695	2575 x 1598 x 930	2400
IVSI-750H-3P-S15	750	1139	1082	1043	2575 x 1818 x 930	3000
IVSI-1000H-3P-S15	1000	1518	1443	1390	2575 x 1848 x 930	3450
IVSI-1250H-3P-S15	1250	1898	1803	1738	2875 x 1780 x 1180	4200
IVSI-1500H-3P-S15	1500	2278	2164	2086	2875 x 1780 x 1320	4600
IVSI-2000H-3P-S15	2000	3037	2885	2781	2875 x 1900 x 1460	6400
IVSI-2500H-3P-S15	2500	3797	3607	3447	2965 x 1956 x 1620	7600
IVSI-3000H-3P-S15	3000	4556	4328	4172	2965 x 2006 x 1620	8820


Note:	Other voltage configurations available upon enquiry / order.
	Optional Accessories added may affect dimensions and weights - subject to confirmation.

S20 Models - Input Voltage Swing +/-20% - 500 to 3000 kVA

Model:	RATING	AMPS (Per Phase)			Dimensions	Weight
	kVA	@380V	@400V	@415V	W x H x D(mm)	(Kgs)
IVSI-500H-3P-S20	500	759	721	695	2575 x 1668 x 930	2700
IVSI-750H-3P-S20	750	1139	1082	1043	2575 x 1848 x 930	3450
IVSI-1000H-3P-S20	1000	1518	1443	1390	2875 x 1780 x 1180	4200
IVSI-1250H-3P-S20	1250	1898	1803	1738	2875 x 1780 x 1320	4600
IVSI-1500H-3P-S20	1500	2278	2164	2086	2875 x 1900 x 1380	5320
IVSI-2000H-3P-S20	2000	3037	2885	2781	2875 x 1956 x 1620	7600
IVSI-2500H-3P-S20	2500	3797	3607	3447	2965 x 2006 x 1620	8380
IVSI-3000H-3P-S20	3000	4556	4328	4172	2965 x 2150 x 1510	10000


Note:	Other voltage configurations available upon enquiry / order.
	Optional Accessories added may affect dimensions and weights - subject to confirmation.

S25 Models - Input Voltage Swing +/-25% - 500 to 2500 kVA

Model:	RATING	AMPS (Per Phase)			Dimensions	Weight
	kVA	@380V	@400V	@415V	W x H x D(mm)	(Kgs)
IVSI-500H-3P-S25	500	759	721	695	2575 x 1818 x 930	3000
IVSI-750H-3P-S25	750	1139	1082	1043	2575 x 1870 x 1180	4200
IVSI-1000H-3P-S25	1000	1518	1443	1390	2875 x 1780 x 1320	4600
IVSI-1250H-3P-S25	1250	1898	1803	1738	2875 x 1900 x 1380	5320
IVSI-1500H-3P-S25	1500	2278	2164	2086	2875 x 1900 x 1460	6400
IVSI-2000H-3P-S25	2000	3037	2885	2781	2875 x 2006 x 1620	8380
IVSI-2500H-3P-S25	2500	3797	3607	3447	2965 x 2150 x 1510	10000


Note:	Other voltage configurations available upon enquiry / order.
	Optional Accessories added may affect dimensions and weights - subject to confirmation.

S30 Models - Input Voltage Swing +/-30% - 500 to 2500 kVA

Model:	RATING	AMPS (Per Phase)			Dimensions	Weight
	kVA	@380V	@400V	@415V	W x H x D(mm)	(Kgs)
IVSI-500H-3P-S30	500	759	721	695	2575 x 1848 x 930	3600
IVSI-750H-3P-S30	750	1139	1082	1043	2575 x 1780 x 1320	4800
IVSI-1000H-3P-S30	1000	1518	1443	1390	2875 x 1900 x 1380	5600
IVSI-1250H-3P-S30	1250	1898	1803	1738	2875 x 1900 x 1460	6400
IVSI-1500H-3P-S30	1500	2278	2164	2086	2965 x 1956 x 1620	7600
IVSI-2000H-3P-S30	2000	3037	2885	2781	2965 x 2150 x 1510	10000
IVSI-2500H-3P-S30	2500	3797	3607	3447	2965 x 2150 x 1510	10500


Note:	Other voltage configurations available upon enquiry / order.
	Optional Accessories added may affect dimensions and weights - subject to confirmation.

Introduction

IVSI-HD-3P-S Series - 500 to 3000 kVA
Three Phase Oil Immersed Magnetic Induction 3 Wire (No Neutral) AC Voltage Stabilisers

Input / Output: 380V, 400V & 415V AC - 50/60Hz

Standard Permissible Input Voltage Window Options

IVSI Input Voltage Window

> View Input Voltage Swings

Downloads
General Series Catalogue:
MSB Data Sheet:
Guide Specification:

Pricing
To obtain a personal price, or to discuss further how we might be able to help your organisation, please feel free
to either e-mail us
or call us on +44 (0)870 240 6162

Model Ratings (kVA/Amps)

Model:	RATING	AMPS (Per Phase)			Dimensions	Weight
	kVA	@380V	@400V	@415V	W x H x D(mm)	(Kgs)
IVSI-500HD-3P-S*	500	759	721	695	Dimensions, Weights and precise Standard and Optional Add-On Features as per the relevant S* model data sheet (see Technical Specification TAB below) or upon request.
IVSI-750HD-3P-S*	750	1139	1082	1043
IVSI-1000HD-3P-S*	1000	1518	1443	1390
IVSI-1250HD-3P-S*	1250	1898	1803	1738
IVSI-1500HD-3P-S*	1500	2278	2164	2086
IVSI-2000HD-3P-S*	2000	3037	2885	2781
IVSI-2500HD-3P-S*	2500	3797	3607	3447
IVSI-3000HD-3P-S*	3000	4556	4328	4172


	S* = Selected permissible input voltage window - S10 (±10%), S15 (±15%), S20 (±20%), S25 (±25%) or S30 (±30%)

General Technical Specification

Technology:

Magnetic Induction Design - Brushless Oil Immersed

Permissible Input Voltage Window Options:

380V or 400V or 415V – Three Phase 3 Wire (3 Phase + G/E - NO Neutral)
Output Voltage Accuracy	±1.5%	±3%	±5%	Ratings
*S10 Models - Input Window	± 10%	-12% /+13%	-14% /+16%	500 to 3000 kVA
*S15 Models – Input Window	± 15%	-17% /+18%	-19% /+21%	500 to 3000 kVA
*S20 Models – Input Window	± 20%	-22% / +23%	-24% / +26%	500 to 3000 kVA
*S25 Models – Input Window	± 25%	-27% / +28%	-29% / +31%	500 to 2500 kVA
*S30 Models – Input Window	± 30%	-32% / +33%	-34% / +36%	500 to 2500 kVA

Output Voltage:

Presettable for any voltage between 380V, 400V or 415V (Customer to Specify) – Three Phase 3 Wire (3 Phase + G/E - NO Neutral).

The permissible input voltage window is relative to the pre-set output voltage.

Output Voltage Accuracy:

± 1.5%, ± 3% or ± 5% - auto selection based on input voltage swing.

Frequency:

47 to 65 Hz

Response Time:

< 1.5 ms

Correction Time:

A 10% supply variation will be corrected to within 2.5% in typically 0.6 to 1 second - dependent on the reselected permissible input voltage swing and system rating.

Efficiency:

>97%

Power Factor:

Any Lagging to 0.95 leading

Surge Ratings:

10 x max current rating for 2 seconds

3 x max current rating for 1 minute

2 x max current rating for 5 minutes

Surge Suppression:

TVSS - Protects loads against high energy Spikes and Transient Voltages

Total Harmonic Distortion:

< 1%

Independent Phase Control:

Maintains each phase voltage stable irrespective of load unbalance, even up to 100% load unbalance.

Insulation Oil:

Uninhibited Transformer Oil conforming to BS EN 60296 (2004).

Environment:

Temperature Range -15°to 45° C

Derate by 2% for each additional °C up to max 60°C

Suitable for indoor tropical use 95% RH (non-condensing)

Maximum altitude 1000m. Derate by 2.5% for each additional 500m.

Paint Colour:

RAL 7032 (Grey - Powder Coat)

Construction:

Enclosures to IP20 (NEMA 1 Style), BS EN 60529

Conformance:

Complies with BS EN 55022 and the relevant parts of BS EN 61000 series of standards

CE Conformity:

Standard Warranty:

Two (2) Years / Twenty Four (24) Months from date of supply. Extendable, by purchasing an Extended Warranty, to Five (5) Years / Sixty (60 Months).

Standard Features:

Loss of Phase and Phase Reversal Alarm

Over Temerature Alarm

Over Voltage and Low Voltage Alarms

Voltmeter / Phase Selector Switch

Ammeter / Phase Selector Switch

No-Volt Free Contacts (N.C & N.O)

Lightning Surge Arrestors

Oil Pressure Release Valve

Supplied Oil Filled

Optional Add-On Features:

Earth Fault Relay Alarm

Optional Main System Switch Board (MSB):

Main System Switch Board - with Input Circuit, Output Circuit Breaker, Manual Maintenenace Bypass Switch & Metering and Interlocking Protection. 3 Pole as standard, with 4 Pole option.

Optional Outdoor Enclosure:

OIVSI SERIES - IVSI Stabilisers housed in refurbished 20 ft / 40 ft ISO Containers - suitable for outdoor / external environments. Please contact us for further details.

Please Note – These Stabilisers are not designed to support / protect voltage “back feed” applications, where energy is required to be also fed back into the utility supply.

Introduction

IVSI-H-3P-S-X468 Series - 500 to 3000 kVA
Three Phase Oil Immersed Magnetic Induction AC Voltage Stabilizers

Input / Output: 440/254V, 460/265V & 480/277V AC - 50/60Hz

Standard Permissible Input Voltage Window Options

SWING-IVSI-H-3P-S-X468

> View Input Voltage Swings

TIP - The wider the permissible input voltage window you wish the Stabilizer to accomodate and the more accurate the voltage you require on the output, the more expensive the Stabilizer. So, when selecting the most appropriate and cost efficient model for your application, it pays to know the state of the utility mains supply on site and the designed input voltage tolerances of the load equipment you wish to protect.

Downloads
General Series Catalog:
MSB Data Sheet:
Guide Specification:

Pricing
To obtain a personal price, or to discuss further how we might be able to help your organisation, please feel free
to either e-mail us
or call us on +44 (0)870 240 6162

Model Ratings (kVA/Amps)

Model:	RATING	AMPS (Per Phase)			Dimensions	Weight
	kVA	@440V	@460V	@480V	W x H x D(mm)	(Kgs)
*IVSI-500H-3P-S-X468**	500	655	627	601	Dimensions, Weights and precise Standard and Optional Add-On Features as per the relevant S* model data sheet (see Technical Specification TAB below) or upon request.
IVSI-750H-3P-S*-X468	750	983	941	901
IVSI-1000H-3P-S*-X468	1000	1311	1254	1202
IVSI-1250H-3P-S*-X468	1250	1639	1568	1503
IVSI-1500H-3P-S*-X468	1500	1967	1882	1803
IVSI-2000H-3P-S*-X468	2000	2623	2509	2404
IVSI-2500H-3P-S*-X468	2500	3279	3137	3006
IVSI-3000H-3P-S*-X468	3000	3935	3764	3607


	S* = Selected permissible input voltage window - S10 (±10%), S15 (±15%), S20 (±20%), S25 (±25%) or S30 (±30%)

General Technical Specification

Technology:

Magnetic Induction Design - Brushless Oil Immersed

Permissible Input Voltage Window Options:

440/254V or 460/265V or 480/277V – Three Phase 4 Wire (3 Phase + Neutral + G/E)
Output Voltage Accuracy	±1.5%	±3%	±5%	Ratings
*S10 Models - Input Window	± 10%	-12% /+13%	-14% /+16%	500 to 3000 kVA
*S15 Models – Input Window	± 15%	-17% /+18%	-19% /+21%	500 to 3000 kVA
*S20 Models – Input Window	± 20%	-22% / +23%	-24% / +26%	500 to 3000 kVA
*S25 Models – Input Window	± 25%	-27% / +28%	-29% / +31%	500 to 2500 kVA
*S30 Models – Input Window	± 30%	-32% / +33%	-34% / +36%	500 to 2500 kVA

Output Voltage:

Presettable for any voltage between 440/254V or 460/265V or 480/277V (Customer to Specify) – Three Phase 4 Wire (3 Phase + Neutral + G/E).

The permissible input voltage window is relative to the pre-set output voltage.

Output Voltage Accuracy:

± 1.5%, ± 3% or ± 5% - auto selection based on input voltage swing.

Frequency:

47 to 65 Hz

Response Time:

< 1.5 ms

Correction Time:

A 10% supply variation will be corrected to within 2.5% in typically 0.6 to 1 second - dependent on the reselected permissible input voltage swing and system rating.

Efficiency:

>97%

Power Factor:

Any Lagging to 0.95 leading

Surge Ratings:

10 x max current rating for 2 seconds

3 x max current rating for 1 minute

2 x max current rating for 5 minutes

Surge Suppression:

TVSS - Protects loads against high energy Spikes and Transient Voltages

Total Harmonic Distortion:

< 1%

Independent Phase Control:

Maintains each phase voltage stable irrespective of load unbalance, even up to 100% load unbalance.

Insulation Oil:

Uninhibited Transformer Oil conforming to BS EN 60296 (2004).

Environment:

Temperature Range -15°to 45° C

Derate by 2% for each additional °C up to max 60°C

Suitable for indoor tropical use 95% RH (non-condensing)

Maximum altitude 1000m. Derate by 2.5% for each additional 500m.

Paint Colour:

RAL 7032 (Grey - Powder Coat)

Construction:

Enclosures to IP20 (NEMA 1 Style), BS EN 60529

Conformance:

Complies with BS EN 55022 and the relevant parts of BS EN 61000 series of standards

CE Conformity:

Standard Warranty:

Two (2) Years / Twenty Four (24) Months from date of supply. Extendable, by purchasing an Extended Warranty, to Five (5) Years / Sixty (60 Months).

Standard Features:

Loss of Phase and Phase Reversal Alarm

Over Temerature Alarm

Over Voltage and Low Voltage Alarms

Voltmeter / Phase Selector Switch

Ammeter / Phase Selector Switch

No-Volt Free Contacts (N.C & N.O)

Lightning Surge Arrestors

Oil Pressure Release Valve

Supplied Oil Filled

Optional Add-On Features:

Earth Fault Relay Alarm

Optional Main System Switch Board (MSB):

Main System Switch Board - with Input Circuit, Output Circuit Breaker, Manual Maintenenace Bypass Switch & Metering and Interlocking Protection. 3 Pole as standard, with 4 Pole option.

Optional Outdoor Enclosure:

OIVSI SERIES - IVSI Stabilisers housed in refurbished 20 ft / 40 ft ISO Containers - suitable for outdoor / external environments. Please contact us for further details.

Please Note – These Stabilisers are not designed to support / protect voltage “back feed” applications, where energy is required to be also fed back into the utility supply.

Introduction

IVSI-HD-3P-S-X468 Series - 500 to 3000 kVA
Three Phase Oil Immersed Magnetic Induction 3 Wire (No Neutral) AC Voltage Stabilizers

Input / Output: 440V, 460V & 480V AC - 50/60Hz

Standard Permissible Input Voltage Window Options

SWING-IVSI-HD-3P-S-X468

> View Input Voltage Swings

Downloads
General Series Catalog:
MSB Data Sheet:
Guide Specification:

Pricing
To obtain a personal price, or to discuss further how we might be able to help your organisation, please feel free
to either e-mail us
or call us on +44 (0)870 240 6162

Model Ratings (kVA/Amps)

Model:	RATING	AMPS (Per Phase)			Dimensions	Weight
	kVA	@440V	@460V	@480V	W x H x D(mm)	(Kgs)
IVSI-500HD-3P-S*-X468	500	655	627	601	Dimensions, Weights and precise Standard and Optional Add-On Features as per the relevant S* model data sheet (see Technical Specification TAB below) or upon request.
IVSI-750HD-3P-S*-X468	750	983	941	901
IVSI-1000HD-3P-S*-X468	1000	1311	1254	1202
*IVSI-1250HD-3P-S-X468**	1250	1639	1568	1503
IVSI-1500HD-3P-S*-X468	1500	1967	1882	1803
IVSI-2000HD-3P-S*-X468	2000	2623	2509	2404
IVSI-2500HD-3P-S*-X468	2500	3279	3137	3006
IVSI-3000HD-3P-S*-X468	3000	3935	3764	3607


	S* = Selected permissible input voltage window - S10 (±10%), S15 (±15%), S20 (±20%), S25 (±25%) or S30 (±30%)

General Technical Specification

Technology:

Magnetic Induction Design - Brushless Oil Immersed

Permissible Input Voltage Window Options:

440V or 460V or 480V – Three Phase 3 Wire (3 Phase + G/E - NO Neutral)
Output Voltage Accuracy	±1.5%	±3%	±5%	Ratings
*S10 Models - Input Window	± 10%	-12% /+13%	-14% /+16%	500 to 3000 kVA
*S15 Models – Input Window	± 15%	-17% /+18%	-19% /+21%	500 to 3000 kVA
*S20 Models – Input Window	± 20%	-22% / +23%	-24% / +26%	500 to 3000 kVA
*S25 Models – Input Window	± 25%	-27% / +28%	-29% / +31%	500 to 2500 kVA
*S30 Models – Input Window	± 30%	-32% / +33%	-34% / +36%	500 to 2500 kVA

Output Voltage:

Presettable for any voltage between 440V, 460V or 480V (Customer to Specify) – Three Phase 3 Wire (3 Phase + G/E - NO Neutral).

The permissible input voltage window is relative to the pre-set output voltage.

Output Voltage Accuracy:

± 1.5%, ± 3% or ± 5% - auto selection based on input voltage swing.

Frequency:

47 to 65 Hz

Response Time:

< 1.5 ms

Correction Time:

A 10% supply variation will be corrected to within 2.5% in typically 0.6 to 1 second - dependent on the reselected permissible input voltage swing and system rating.

Efficiency:

>97%

Power Factor:

Any Lagging to 0.95 leading

Surge Ratings:

10 x max current rating for 2 seconds

3 x max current rating for 1 minute

2 x max current rating for 5 minutes

Surge Suppression:

TVSS - Protects loads against high energy Spikes and Transient Voltages

Total Harmonic Distortion:

< 1%

Independent Phase Control:

Maintains each phase voltage stable irrespective of load unbalance, even up to 100% load unbalance.

Insulation Oil:

Uninhibited Transformer Oil conforming to BS EN 60296 (2004).

Environment:

Temperature Range -15°to 45° C

Derate by 2% for each additional °C up to max 60°C

Suitable for indoor tropical use 95% RH (non-condensing)

Maximum altitude 1000m. Derate by 2.5% for each additional 500m.

Paint Colour:

RAL 7032 (Grey - Powder Coat)

Construction:

Enclosures to IP20 (NEMA 1 Style), BS EN 60529

Conformance:

Complies with BS EN 55022 and the relevant parts of BS EN 61000 series of standards

CE Conformity:

Standard Warranty:

Two (2) Years / Twenty Four (24) Months from date of supply. Extendable, by purchasing an Extended Warranty, to Five (5) Years / Sixty (60 Months).

Standard Features:

Loss of Phase and Phase Reversal Alarm

Over Temerature Alarm

Over Voltage and Low Voltage Alarms

Voltmeter / Phase Selector Switch

Ammeter / Phase Selector Switch

No-Volt Free Contacts (N.C & N.O)

Lightning Surge Arrestors

Oil Pressure Release Valve

Supplied Oil Filled

Optional Add-On Features:

Earth Fault Relay Alarm

Optional Main System Switch Board (MSB):

Main System Switch Board - with Input Circuit, Output Circuit Breaker, Manual Maintenenace Bypass Switch & Metering and Interlocking Protection. 3 Pole as standard, with 4 Pole option.

Optional Outdoor Enclosure:

OIVSI SERIES - IVSI Stabilisers housed in refurbished 20 ft / 40 ft ISO Containers - suitable for outdoor / external environments. Please contact us for further details.

Please Note – These Stabilisers are not designed to support / protect voltage “back feed” applications, where energy is required to be also fed back into the utility supply.

Pages Home Ashley-Edison Products Request a Quote Resellers Resources FAQ News Contact Us Privacy Policy Terms & Conditions of Sale Terms & Conditions of Website Usage	Products Voltage Stabilisers Power Line Conditioners Variable Transformers Volt Drop Compensators Voltage Optimisers Voltage & Frequency Converters	Contact:: Tel: UK + 44 (0)345 504 6442 Asia + 65 6339 9433 USA + 1 206 456 2745 Email: info@AshleyEdisonUK.com

Ashley-Edison (UK) England, UK \| Singapore \| Taipei , Taiwan \| Brisbane, Australia

Oil Immersed Voltage Stabilizers

IVSI Series - Brushless - Three Phase - Industrial Grade Protection - 500 to 3000 kVA

Features

Introduction

Standard Permissible Input Voltage Window Options

Downloads

General Technical Specification

S10 Models - Input Voltage Swing +/-10% - 500 to 3000 kVA

S15 Models - Input Voltage Swing +/-15% - 500 to 3000 kVA

S20 Models - Input Voltage Swing +/-20% - 500 to 3000 kVA

S25 Models - Input Voltage Swing +/-25% - 500 to 2500 kVA

S30 Models - Input Voltage Swing +/-30% - 500 to 2500 kVA

Introduction

Standard Permissible Input Voltage Window Options

Downloads

Model Ratings (kVA/Amps)

General Technical Specification

Introduction

Standard Permissible Input Voltage Window Options

Downloads

Model Ratings (kVA/Amps)

General Technical Specification

Introduction

Standard Permissible Input Voltage Window Options

Downloads

Model Ratings (kVA/Amps)

General Technical Specification