Horizon

One of our Fit & Forget family of products, featuring one of the most advanced operating mechanism available on the market today – the award winning magnetic actuator technology, the Horizon fills the need for outdoor, ground-mounted or pole-mounted circuit breakers.

Designed for a 38kV application, the Horizon can be used with other products from Hawker Siddeley Switchgear to provide cost-effective and compact substations or breathe new life into existing substations by replacing old and obsolete equipment.

Features

Designed for a 15kV or 38kV application, the Horizon can be used with other products from Hawker Siddeley Switchgear Ltd to provide cost – effective and compact substations or breathe new life into existing substations by replacing old and obsolete equipment.

  • Superior, proven Fit & Forget technology with minimal maintenance
  • Vacuum interruption in an SF6 filled, controlled environment (1.5 bar absolute)
  • Dead tank construction suitable for both live or dead tank applications
  • Internal arc containment
  • Generous CT accommodation
  • The lightweight aluminium tank makes the Horizon easier to transport and install
  • The silicone rubber bushings are resistant to damage from vandalism or mishandling and have an extended creepage of 1500mm
  • Cubicle with space for ancillary equipment an option for integrated control and protection relay
  • Optional Adjustable Legs version

For Spares, Service and Repair, please click here.

Ratings

HORIZON 15kV

HORIZON 38kV

 Maximum System Voltage

kV

15.5

38

 Continuous Current

A

1250

1250 / 2000

 Interrupting Current

kA

25

25 / 31.5

 Impulse Voltage Withstand

kV

110

170 / 200

 Power Frequency Withstand Dry

kV 1min

50

80

 Power Frequency Withstand Wet

kV 10secs

50

80

 Rated Gas Pressure for insulation

Atmospheric

Atmospheric

 Control Voltage

V dc

110 / 125 (48 Optional)

110 / 125 (48 & 220 Optional)

 Rated Frequency

Hz

50 / 60

50 / 60

 Rated 3sec Short-Time Current

kA

25

25 / 31.5

 Rated Peak Making Current

kA

65

65 / 82

 Ambient Air Temperature

ºC

-50 - +50

-50 - +50

 Degree of Protection

IP45

IP45

 Weight

Kg

700

700

Rated Operating Sequence O – 0.3sec – CO – 15sec - CO

Standards

IEC 60298 / IEC 60129 / IEC 60694 / IEC 62271-100
EATS 41-36 / EATS 50-18 
ANSI C37.06 / ANSI C37.09

Applications

The Horizon has a wide range of applications:

  • Substations
  • Industry
  • Wind farms

get in touch

Contact HSS

+44 (0)1495 223001

+44 (0)1495 223001

+ 61 7 3888 2333

what we've done

case studies

ENWL Case study Wilmslow retrofit ENWL approved

SSEN - Horizon Framework