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Tủ trung thế 24kV - Safe Plus 24kV (Mã: )

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STANDARDS AND MECHANICAL DATA

 

Metal Enclosed switchgear:                                            IEC 62271-200

General Purpose switches:                                              IEC 60265-1

Disconnectors and Earthing switches:                             IEC 62271-102

Switch Fuse Combination:                                              IEC 62271-105

Circuit Breakers:                                                             IEC 62271-100

Common clauses:                                                          IEC 60694

Pressure of SF6 gas:                                                     1.4 bar at 20 °C

Cable bushings:                                                             DIN 47636

Temperature class:                                                         -25 °C - +40 °C indoor

Degree of protection:

  - SF6 tank:                                                                   IP 67

  - Fusecanisters:                                                            IP 67

  - Front cover:                                                               IP 2X

  - Cable cover:                                                              IP 3X

Busbars:                                                                        240 mm2 Cu

Earth bar (external):                                                        100 mm2 Cu - Bolt dimension: M10

Thickness of Stainless Steel Tank:                                  3.0 mm

Colours:

- Front cover:                                                                 RAL 7035

- Side and cable cover:                                                   RAL 7035

 

ELECTRICAL DATA – 24 kV

 

Nominal voltage: 24 kV

Rated frequency: 50 Hz

Rated current for busbars: 630 A

Rated current for cable switch disconnector : 630 A

Short time withstand current:

- Cable switch disconnector with interface C (400-bolt) bushing: 21 kArms 3 sec.

- Rated current for transformer T-off : 200 / 630 A

 

Impulse withstand voltage :

To earth and between phases: 125 kV

Insulation level:

-  Power  frequency 1 min: 50 kV

SafePlus C is a cable switch module with a three position load break switch and earthing switch, busbars, interlocking and earthbar.

 

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SafePlus type C: Cable switch 24kV, 630A, 21kA

 

1

Snap action mech. for manual operation

 

1

Cable bushings 400 series bolted, 630 A, standard

 

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Cable cover standard

 

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Capacitive voltage indication fixed type DXN2-T

 

1

Short circuit & Earth fault indicator EKL-1

 

1

Cable support bars, standard for 1-way unit

 

1

Manometer

 

SafePlus F is a switch fuse combination module with three position load break switch and earthing switch, fuse canisters, fuse tripping, busbars, interlocking, bushings 200 series plug-in for cable connection in front, earthbar and stored spring energy mechanism (A-mech.).

 

1

SafePlus type F: Switch fuse combination 24kV, 200A, 21kA

 

1

Stored energy mech. for manual operation

 

1

Cable bushings 200 series plug-in, 200 A, standard

 

1

Cable cover standard

 

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Capacitive voltage indication fixed type DXN2-T

 

1

Cable support bars, standard for 1-way unit

 

SafePlus V is a Vacuum circuit breaker  module with vacuum circuit breaker, three position isolator/earthing switch, busbars, interlocking, earthbar and stored spring energy mechanism (A-mech.).

 

1

Stored energy mech. for man.operation

 

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SafePlus type V: Vacuum circuit breaker 24kV, 630A, 16kA

 

1

Protection relay type ABB REJ 603

 

3

Ring core current transformer type CT2 16-56A

 

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Cable bushings 400 series bolted, 630A

 

1

Cable cover standard

 

1

Capacitive voltage indication fixed type DXN2-T

 

1

Cable support bars, standard for 1-way unit

 
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