“Experience and Innovation at Your Service”Totally Designed, Developed and Manufactured in Italy

Standard air insulated heat/cold shrinkable indoor termination can be used in combination with our silicon cover caps (boots) placed on the “C” bushing sealed and fixed by cast resin bolts. It allows access for cable test purpose. This solution has been tested by CESI Laboratory in Milan Italy.

Extensible VersionRealized with premolded busbar system, no insulating belt is required. The switchgear remains Internal Arc Proof in this version too.

Thanks to its innovative and user-friendly design, TPR6 now represents the very next generation of GIS RMUs, achieving impressive performances and granting easy works to the operator.Introducing the new concept of super-compact Disconnector + Vacuum CB combined unit, SEL has totally designed and developed the TPR6 in its own R&D department and following the Company Policy, has already tested it in CESI laboratories, Milan, Italy, according to IEC 62271 standards.

Outdoor version Indoor version

Protection Relay

Protection Relay

Manometer

Cables compartmentCables compartmentdoor

Manometer

L unit

T unit

L unit

L unit

T unit

L unit

Suitable Air Insulated heat/cold shrinkable termination with additional boots.

Premolded shielded type termination for interface “C” bushing (according with DIN EN 50181 standard) are suitable cable termination.

Suitable Shielded Cable Termination

1. Silicon cover caps (boots)2. Tap3. Bimetallic Lugs

1

23

VoltageIndicator

Bushing interface “C”

TEE-OFFRINGSWITCH

RINGSWITCH

Outdoor 25kA 3s version

Outdoor Extensible 25kA 3s version

Indoor 25kA 3s version

IAC 25kA 1s A-FLRIn all versions, Indoor, Outdoor, Extensible and not Extensible, the switchgear is always Internal Arc Proof, Front-Lateral-Rear, Class A included cables box compartment.

NO CurrentDerating

up to

55°C

Insulation Rated Voltage 12kV 17,5kV 24kV

Altitude m <1000

Ambient air Temperature °C -25 ÷ 55

Relative Humidity % 95

Lightning impulse withstand voltage between phasess and towards the ground kV 95 110 125

Lightning impulse withstand voltage across the isolating distange kV 110 110 145

Power frequency withstand voltage between the phases kV 38 38 50

Power frequency withstand voltage across the isolating point kV 45 45 60

Rated Frequency Hz 50 - 60

Rated Current * Ring Switch A 400 - 630

Rated Current * Vacuum Circuit Breaker A 250 - 400 - 630

Rated short time withstand current IK kA 25

Rated Duration of short circuit tKs 3

Rated peak withstand current IPkA 50Hz 2,5 x IK / 60Hz 2,6 x IK

Degree of Protection IP 3X - 41 - 54

Internal Arc WIthstand Current A-FLR included cables box compartment kA 25kA 1s

Mechanical operation circuit breaker IEC 62271-100 - M1/2000 - M2/10.000 operations

Electrical Operation circuit breaker IEC 62271-100 - E1 / E2

Breaking Capacity circuit breaker IEC 62271-100 kA 25 21 20

Making Capacity circuit breaker IEC 62271-100 kA 50Hz 2,5 x IK / 60Hz 2,6 x IK

Break Time vacuum Circuit breaker circuit breaker IEC 62271-100 ms <= 70

Operating sequence for mechanism circuit breaker IEC 62271-100 -O - 0,3s - CO - 15s - CO

O - 0,3s - CO - 3min - CO

Mechanical operation switch disconnector IEC 62271-103 -1.000 operations / Class M15.000 operations / Class M2

Electrical operation switch disconnector IEC 62271-103 - 100 break at In p.f.=0,7 / Class E3

Mechanical operation Earthing switch IEC 62271-102 - 1.000 operations / Class M0

Electrical operation Earthing switch IEC 62271-102 - making capacity 5 / Class E2

* No derating up to 55 °C