The circuit-breaker panels of the bus sectionalizers must be designed as follows:

In panel-type construction, equipped with:

1 set of busbars, insulated, Cu

Rated continuous current:

X 1600 A

O 2000 A

O 2500 A

Voltage transformers at the busbar:

X without voltage transformers

O with voltage transformers, 3 x single-pole

O with voltage transformers, 3 x single-pole, with earth-fault winding and damping resistor

Rating / Class:

for IEC, GOST, GB:

O 10 VA / 0.2

O 10 VA / 0.5

O 10 VA / 1

O 20 VA / 0.2

O 20 VA / 0.5

O 20 VA / 1

O 45 VA / 1

O 60 VA / 1

Voltage sensor at the busbar:

X without

O with (resistor divider)

Solid-insulated bar at the busbar:

X without

O on the left, for interconnection of 2 switchgear rows

O on the right, for interconnection of 2 switchgear rows

Capacitive voltage detecting system at the busbar (tapping through capacitive layers in the busbar bushings)

X without

O ________ acc. to description

1 vacuum circuit-breaker
Rated continuous current and rated short-time withstand current short-time withstand current according to the general technical stipulations,
with maintenance-free operating mechanism as stored-energy spring mechanism,
with motor operating mechanism, with AR capability acc. to VDE / IEC (=O-t-CO-t’-CO), with mechanical pushbuttons for CLOSING and OPENING, with auxiliary switch
free contacts: 3NO+4NC,
with mechanical indication and signaling for "closing spring charged" and "circuit-breaker trip",
X with one shunt release (-Y1)
O with two shunt releases (-Y1, -Y2)
O with one shunt release (-Y1) and one undervoltage release (-Y7)

1 three-position disconnector
Rated continuous current and rated short-time withstand current short-time withstand current according to the general technical stipulations, with the switch positions CLOSED - OPEN - READY-TO-EARTH,
installed in the gas-filled stainless-steel vessel for earthing the cable feeder (via circuit-breaker),
operation through spring-operated mechanism with mechanical position indicator, equipped with
X manual operating mechanism for DISCONNECTING function and READY-TO-EARTH function
O motor operating mechanism for DISCONNECTING function and manual operating mechanism for READY-TO-EARTH function
O motor operating mechanism for DISCONNECTING function and READY-TO-EARTH function
with auxiliary switch:
DISCONNECTING function:
1NO+1NC+2CH.OV. with manual operating mechanism for DISCONNECTING function and READY-TO-EARTH function; 2NO+2NC+2CH.OV. with motor operating mechanism for DISCONNECTING function and manual/motor operating mechanism for READY-TO-EARTH function
READY-TO-EARTH function:
1NO+1NC+2CH.OV. with manual operating mechanism for DISCONNECTING function and READY-TO-EARTH function; 2NO+2NC+2CH.OV. with motor operating mechanism for DISCONNECTING function and manual/motor operating mechanism for READY-TO-EARTH function
electromechanical interlock:
X without
O at the disconnector (-Y1)
O at the earthing switch (-Y5)
O at the disconnector and earthing switch (-Y1; -Y5)
with locking device
with operating mechanism designed for separate operating levers (acc. to FNN recommendation)

Operating cycles (mechanical operating cycles, CLOSE-OPEN switching cycle / mechanical operating cycles, OPEN-EARTHING switching cycle / circuit-breaker operating cycles):

2000/1000/10000

1 mimic diagram (preferably printed)

1 low-voltage compartment for accommodation of secondary devices, with terminal strips, completely wired, with feeder designation label.
Height:
X 761 mm
O 1161 mm
including the necessary secondary devices for control, protection and monitoring

Protection device according to preliminary description:

O Feeder and overcurrent protection 7SJ82

O Feeder and overcurrent protection 7SJ85

O Motor protection 7SK82

O Motor protection 7SK85

O Generator protection 7UM85

O Differential protection for two-winding transformers 7UT82

O Transformer differential protection 7UT8

O Line differential protection 7SD82

O Distance protection 7SA82

O Voltage and frequency protection 7RW80

O Line differential protection 7SD80

X Time-overcurrent protection 7SJ80

O Motor protection 7SK80

O Time-overcurrent protection 7SR11

O Time-overcurrent protection 7SR12

O Time-overcurrent and earth-fault protection 7SR100

O Motor and generator protection 7SR105

O Current-transformer operated time-overcurrent protection 7SR45

Current transformers at the transverse panel interconnection:

X without current transformers at the transverse panel interconnection

O with current transformers at the transverse panel interconnection, 3 current transformers with 1 core

O with current transformers at the transverse panel interconnection, 3 current transformers with 2 cores

Current transformer values, core 1: Core:

for IEC, GOST, GB:

O 600A-1200A/1A; 10VA / Cl. 0.2 / FS10

O 600A-1200A/1A; 10VA / Cl. 0.5 / FS10

O 600A-1200A/1A; 10VA / Cl. 1 / FS10

O 600A-1200A/1A; 15VA / Cl. 10P / 20

O 1250A-2000A/1A; 10VA / Cl. 0.2 / FS10

O 1250A-2000A/1A; 10VA / Cl. 0.5 / FS10

O 1250A-2000A/1A; 10VA / Cl. 1 / FS10

O 1250A-2000A/1A; 15VA / Cl. 10P / 20

Current transformer values, core 2: Core:

for IEC, GOST, GB:

O 600A-1200A/1A; 10VA / Cl. 0.2 / FS10

O 600A-1200A/1A; 10VA / Cl. 0.5 / FS10

O 600A-1200A/1A; 10VA / Cl. 1 / FS10

O 600A-1200A/1A; 15VA / Cl. 10P / 20

O 1250A-2000A/1A; 10VA / Cl. 0.2 / FS10

O 1250A-2000A/1A; 10VA / Cl. 0.5 / FS10

O 1250A-2000A/1A; 10VA / Cl. 1 / FS10

O 1250A-2000A/1A; 15VA / Cl. 10P / 20