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Deba Ningbo is your partner in the protection
of medium voltage networks

Home » Products » SI-2



SI-2: Solid Insulation – SIS

SF6 free, environmentally friendly.

Safety first

  • Primary parts are IP68, compartment sealed hermetically (dry air)
  • Clearly visible position of earthing switch
  • Entire design earthed and touch-proof
  • Single, auto-interlocked operation of fuse switch
  • Single earthing switch with both contact

Robust

  • FEA optimized design (no embedded shield required)
  • PD less 5pC at 1.2 Ur
  • High-performance epoxy desig

Functional

  • Modular design, flexible combinations
  • Easy servicing
  • Remote control operation, or manual/automatic

Compact

  • 120 mm phase centers, 356 mm width for three-phase assembly

Technical Specifications

Unit
Ratings
Circuit Breaker
Load Break Switch
Fuse Switch
3-position Switch
Rated Voltage
kV rms
12/15
12/15
12/15
12/15
Rated frequency
Hz
50/60
50/60
50/60
50/60
Rated Power Frequency Withstand Voltage
To-earth phases
kV rms
42
42
42
42
Over insulation distance
kV rms
48
48
48
48

Rated lighting impulse withstand voltage (peak)

To-earth phases
kVp
95
95
95
95
Over insulation distance
kVp
110
110
110
110
Rated current
A rms
630
630
630
630
Short-circuit breaking capacity
kA rms
20
Maximum number of operations at 100% lsc
50
Rated making capacity
kAp
52
52
52
Rated short-time withstand current kA rms and duration S
kA rms
S
20
4
20
4
20
4
Peak withstand current
kAp
52
52
52
Capacitive breaking capacity
A rms
25
10

Rated breaking transfer current

A rms
3150
PD on primary modular
pC
<5
<5
<5
<5
Rated operating sequence of circuit breaker
O-0.3s-CO-15s-CO
No-load mechanical endurance
>10,000
>10,000
>10,000
>10,000
IP code
IP68
Altitude
m
<5000
Operating temperature
°C
-25 to +55
Standards
IEC 62271-201, IEC 62271-100, IEC 62271-102, IEC 62271-1, IEC 62271-105

Any questions?

Feel free to contact us for more information!

Yun Wang
Yun WangPlant Manager
Download

leaflet SI-2

Products

> AIS – Air Insulated Switchgear
> GIS – Gas Insulated Switchgear
> Solid Insulated Switchgear

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