abb 1hyd800004 disconnector edb en
DESCRIPTION
ABBTRANSCRIPT
Horizontal double break disconnector Type eDB up to 420 kVMaximum reliability and minimal maintenance
2 Horizontal double break disconnector | Product brochure
Disconnectors from ABB ABB disconnectors have been in service across the world for over two decades providing maintenance-free service with the highest records of operational reliability The worldwide experience often under severe climatic conditions is applied for continual product improvement
Applications A mechanical device for providing isolation of power equipment from the network a disconnector is suitable for switching very small currents or where no significant change in voltage occurs across the terminals The option of earthing sections of power systems can be made available by providing each disconnector pole with one or two earthing switches
Regulations
The eDB Disconnectors are designed as per IEC 62271-102 and IEC 62271-1 standards Other international regulations can be met on request
Type tests on the disconnectors are carried out by accredited testing laboratories in accordance with the latest regulations Comprehensive electrical and mechanical routine tests are carried out on the poles and operating mechanism of each disconnector ensuring world class quality
Table of contents
Disconnectors from ABB 2 Applications 2 Regulations 2Maximum reliability and minimal maintenance 3Technical data 4Mode of operation 5Easy installation 6 Main dimensions (mm) 6 Series Installation 7
Product brochure | Horizontal double break disconnector 3
Maximum reliability and minimal maintenance
Minimized contact resistance (energy efficient solution)The current carrying aluminum conductors have no joints to minimize circuit resistance
No external springs in contact fingers for maximum reliability The contact fingers of the moving contacts of disconnector type eDB are designed from special conducting material and without external springs for increased reliability
Easy and quick erection The current carrying conductors and rotary pedestals are designed for easy adjusting and alignment
Low friction design for smooth operation Maintenance-free linkages with stainless steel rod-end bearings require less drive power for operation and provide smooth motion transmission without any disturbance in the settings (Corrosion ndash free electrical and mechanical joints)
Dead center interlocking for reliability under extreme conditions The dead center interlocking of operating mechanisms ensure that there are no inadvertent changes in the open or close switching position even under extreme external conditions such as storms earthquakes etc
Superior design of mechanical interlock The mechanical interlock between the earthing switch and main blade is designed in a way such that there is no scope for malfunction
Ice breaking capacity The disconnectors are capable of operating under severe ice conditions
Strong rotary pedestals This ensures that the deflection remains unchanged at high mechanical loads
Suitable for wide range of environmental conditions The disconnectors can operate in a wide range of temperatures as well as under polluted environmental conditions
Minimal maintenance Superior material and lubricant used in the encapsulation of the pedestals makes the disconnectors practically maintenance-free
Design based on cutting-edge technology and experienceThe horizontal double break disconnectors type eDB consist of a steel base frame with one rotary pedestal insulators current carrying conductors (current path) and driving mechanisms Steel components are hot dip galvanized to protect against atmospheric influences Each of the three phases of the disconnector consists of one insulator mounted on maintenance free sealed rotary pedestal and two support insulators which support terminal pads and fixed contacts which are carried by the steel base frame The current transfer takes place between two stationary terminal pads When closed the contact fingers glides over the fixed contact which establishes connection between the high- voltage terminal pads Flat terminal plates can be provided as per DIN standard 46203 NEMA or any other standards
Fixed contact and terminal pad of 1600 A eDB
Technical data
Technical Data Voltage 725 kV 123 kV 145 kV 170 kV 245 kV 300 kV 362 kV 420 kV
Type designation eDB725 eDB123 eDB145 eDB170 eDB245 eDB300 eDB362 eDB420
Rated voltage (Ur) kV 725 123 145 170 245 300 362 420
Rated frequency (fr) Hz 5060
Rated normal current (Ir) A 1600 2500
Rated short-time withstand
current rated duration of short
circuit (Iktk)
kA s
405063 1
Rated peak withstand
current (Ip)
kAp
25x Ik (for 50 Hz) 26x Ik (for 60 Hz)
Basic Insulation Level
Power frequency withstand
voltage for 1 minute
To earth and between poles
Across the isolating distance
Lightning impulse withstand
voltage
To earth and between poles
Across the isolating distance
Switching impulse withstand
voltage
To earth and between poles
Across the isolating distance
kV
kV
kVp
kVp
kVp
kVp
140
160
325
375
-
-
230
265
550
650
-
-
275
315
650
750
-
-
325
375
750
860
-
-
460
530
1050
1200
-
-
395
435
1050
1050(+170)
850
700(+245)
450
520
1175
1175(+205)
950
800(+295)
520
610
1425
1425(+240)
1050
900(+345)
36 kV on demand
Higher currents on request
3s for 40 kA
4 Horizontal double break disconnector | Product brochure
145 kV eDB disconnector
Mode of operation
The disconnector and earthing switch are operated via independent operating mechanisms
The operating energy from the operating mechanism of the disconnector is transmitted via operating rod to the rotary pedestal The three phases of the disconnector are connected by gang operating linkages for three phase operation During opening and closing operation the current path mounted on rotory insulator rotate through an angle of approximately 76deg
Operating mechanism All disconnectors can be supplied by manual or motor operated mechanism as required by the customer Each three-pole disconnector or earthing switch group requires only one individual operating mechanism(s) The coupling rods between the individual poles can be continuously adapted
Operating mechanisms contain auxiliary switches for control and signaling as well as provisions for electrical interlocks Three phase operation is conducted via mechanical or electrical gang operation
For maximum reliability the main contacts of the disconnector and earthing switch pass through the dead center positions shortly before they reach the end positions This prevents accidental opening or closing of the units due to external influences (eg short-circuits storm earthquake)
Linkages with spherical bearings
Bearing on frame assembly
InterlocksThe disconnector and earthing switch (when supplied) are mechanically interlocked In operating mechanisms a blocking magnet can be installed as an additional interlocking facility which in disconnected condition makes operation of the operating mechanism impossible
Earthing switch unit The earthing switch unit an optional assembly consists of a hinged-type earthing switch fixed at the base frame The unit can be mounted on either of the contact sides or on both sides as required
In case of the earthing switch the operating energy is transmitted to the earthing switch shaft The tubular contact arm switngs upward when the unit is closing
Product brochure | Horizontal double break disconnector 5
Easy installation
The disconnectors are delivered in following assemblies - lower part with rotary pedestals and operating rod current path support insulators and operating mechanism As all mechanical adjustments are carried out in the factory only mounting of the assemblies installation of the coupling rods between the poles connection of the high-tension leads and
the electrical connection leading to the operating mechanisms is required at the site
Stud bolts are provided to compensate rapidly and exactly any inaccuracies in insulator position caused due to tensile forces
Parallel installation
Series installation
A
D
B
E
C
70deg
PminPmin
Pmin Pmin
70deg
Dimensions Voltage (kV)
Type
725
eDB725
123
eDB123
145
eDB145
170
eDB170
245
eDB245
300
eDB300
362
eDB362
420
eDB420
A Support insulator distance (mm) 1230 1720 1720 2200 2800 2800 4800 4800
B Base frame length (mm) 1510 2000 2000 2600 3200 3200 5230 5230
C Insulator height (mm) 770 1220 1500 1700 2300 2300 3650 3650
D Disconnector height (mm) 975 1665 1745 1930 2550 2550 3960 3960
E Earth switch attachment length (mm) 375 max 375 max 375 max 400 max 400 max 400 max 450 1100
P Minimum distance between poles
(mm)
- Parallel arrangement 1270 1750 1750 2330 3520 3430 4755 )
- Series arrangement 1790 2700 3150 3530 4920 5350 6925 )
Main dimensions in drawing (mm)
6 Horizontal double break disconnector | Product brochure
Notes
Product brochure | Horizontal double break disconnector 7
Contact us
Pub
lic1048991o
n1H
YD
8000
04-0
01copy
Cop
yrig
ht 2
012
AB
B
All
right
s re
serv
edNote ABB Ltd is working continuously to
improve the products We therefore reserve the right to change designs dimensions and data without prior notice
ABB India LimitedHigh Voltage products Maneja Vadodara 390 013 India Phone +91-265-2638930 Email pt-exportsinabbinabbcom
wwwabbcomhighvoltage
2 Horizontal double break disconnector | Product brochure
Disconnectors from ABB ABB disconnectors have been in service across the world for over two decades providing maintenance-free service with the highest records of operational reliability The worldwide experience often under severe climatic conditions is applied for continual product improvement
Applications A mechanical device for providing isolation of power equipment from the network a disconnector is suitable for switching very small currents or where no significant change in voltage occurs across the terminals The option of earthing sections of power systems can be made available by providing each disconnector pole with one or two earthing switches
Regulations
The eDB Disconnectors are designed as per IEC 62271-102 and IEC 62271-1 standards Other international regulations can be met on request
Type tests on the disconnectors are carried out by accredited testing laboratories in accordance with the latest regulations Comprehensive electrical and mechanical routine tests are carried out on the poles and operating mechanism of each disconnector ensuring world class quality
Table of contents
Disconnectors from ABB 2 Applications 2 Regulations 2Maximum reliability and minimal maintenance 3Technical data 4Mode of operation 5Easy installation 6 Main dimensions (mm) 6 Series Installation 7
Product brochure | Horizontal double break disconnector 3
Maximum reliability and minimal maintenance
Minimized contact resistance (energy efficient solution)The current carrying aluminum conductors have no joints to minimize circuit resistance
No external springs in contact fingers for maximum reliability The contact fingers of the moving contacts of disconnector type eDB are designed from special conducting material and without external springs for increased reliability
Easy and quick erection The current carrying conductors and rotary pedestals are designed for easy adjusting and alignment
Low friction design for smooth operation Maintenance-free linkages with stainless steel rod-end bearings require less drive power for operation and provide smooth motion transmission without any disturbance in the settings (Corrosion ndash free electrical and mechanical joints)
Dead center interlocking for reliability under extreme conditions The dead center interlocking of operating mechanisms ensure that there are no inadvertent changes in the open or close switching position even under extreme external conditions such as storms earthquakes etc
Superior design of mechanical interlock The mechanical interlock between the earthing switch and main blade is designed in a way such that there is no scope for malfunction
Ice breaking capacity The disconnectors are capable of operating under severe ice conditions
Strong rotary pedestals This ensures that the deflection remains unchanged at high mechanical loads
Suitable for wide range of environmental conditions The disconnectors can operate in a wide range of temperatures as well as under polluted environmental conditions
Minimal maintenance Superior material and lubricant used in the encapsulation of the pedestals makes the disconnectors practically maintenance-free
Design based on cutting-edge technology and experienceThe horizontal double break disconnectors type eDB consist of a steel base frame with one rotary pedestal insulators current carrying conductors (current path) and driving mechanisms Steel components are hot dip galvanized to protect against atmospheric influences Each of the three phases of the disconnector consists of one insulator mounted on maintenance free sealed rotary pedestal and two support insulators which support terminal pads and fixed contacts which are carried by the steel base frame The current transfer takes place between two stationary terminal pads When closed the contact fingers glides over the fixed contact which establishes connection between the high- voltage terminal pads Flat terminal plates can be provided as per DIN standard 46203 NEMA or any other standards
Fixed contact and terminal pad of 1600 A eDB
Technical data
Technical Data Voltage 725 kV 123 kV 145 kV 170 kV 245 kV 300 kV 362 kV 420 kV
Type designation eDB725 eDB123 eDB145 eDB170 eDB245 eDB300 eDB362 eDB420
Rated voltage (Ur) kV 725 123 145 170 245 300 362 420
Rated frequency (fr) Hz 5060
Rated normal current (Ir) A 1600 2500
Rated short-time withstand
current rated duration of short
circuit (Iktk)
kA s
405063 1
Rated peak withstand
current (Ip)
kAp
25x Ik (for 50 Hz) 26x Ik (for 60 Hz)
Basic Insulation Level
Power frequency withstand
voltage for 1 minute
To earth and between poles
Across the isolating distance
Lightning impulse withstand
voltage
To earth and between poles
Across the isolating distance
Switching impulse withstand
voltage
To earth and between poles
Across the isolating distance
kV
kV
kVp
kVp
kVp
kVp
140
160
325
375
-
-
230
265
550
650
-
-
275
315
650
750
-
-
325
375
750
860
-
-
460
530
1050
1200
-
-
395
435
1050
1050(+170)
850
700(+245)
450
520
1175
1175(+205)
950
800(+295)
520
610
1425
1425(+240)
1050
900(+345)
36 kV on demand
Higher currents on request
3s for 40 kA
4 Horizontal double break disconnector | Product brochure
145 kV eDB disconnector
Mode of operation
The disconnector and earthing switch are operated via independent operating mechanisms
The operating energy from the operating mechanism of the disconnector is transmitted via operating rod to the rotary pedestal The three phases of the disconnector are connected by gang operating linkages for three phase operation During opening and closing operation the current path mounted on rotory insulator rotate through an angle of approximately 76deg
Operating mechanism All disconnectors can be supplied by manual or motor operated mechanism as required by the customer Each three-pole disconnector or earthing switch group requires only one individual operating mechanism(s) The coupling rods between the individual poles can be continuously adapted
Operating mechanisms contain auxiliary switches for control and signaling as well as provisions for electrical interlocks Three phase operation is conducted via mechanical or electrical gang operation
For maximum reliability the main contacts of the disconnector and earthing switch pass through the dead center positions shortly before they reach the end positions This prevents accidental opening or closing of the units due to external influences (eg short-circuits storm earthquake)
Linkages with spherical bearings
Bearing on frame assembly
InterlocksThe disconnector and earthing switch (when supplied) are mechanically interlocked In operating mechanisms a blocking magnet can be installed as an additional interlocking facility which in disconnected condition makes operation of the operating mechanism impossible
Earthing switch unit The earthing switch unit an optional assembly consists of a hinged-type earthing switch fixed at the base frame The unit can be mounted on either of the contact sides or on both sides as required
In case of the earthing switch the operating energy is transmitted to the earthing switch shaft The tubular contact arm switngs upward when the unit is closing
Product brochure | Horizontal double break disconnector 5
Easy installation
The disconnectors are delivered in following assemblies - lower part with rotary pedestals and operating rod current path support insulators and operating mechanism As all mechanical adjustments are carried out in the factory only mounting of the assemblies installation of the coupling rods between the poles connection of the high-tension leads and
the electrical connection leading to the operating mechanisms is required at the site
Stud bolts are provided to compensate rapidly and exactly any inaccuracies in insulator position caused due to tensile forces
Parallel installation
Series installation
A
D
B
E
C
70deg
PminPmin
Pmin Pmin
70deg
Dimensions Voltage (kV)
Type
725
eDB725
123
eDB123
145
eDB145
170
eDB170
245
eDB245
300
eDB300
362
eDB362
420
eDB420
A Support insulator distance (mm) 1230 1720 1720 2200 2800 2800 4800 4800
B Base frame length (mm) 1510 2000 2000 2600 3200 3200 5230 5230
C Insulator height (mm) 770 1220 1500 1700 2300 2300 3650 3650
D Disconnector height (mm) 975 1665 1745 1930 2550 2550 3960 3960
E Earth switch attachment length (mm) 375 max 375 max 375 max 400 max 400 max 400 max 450 1100
P Minimum distance between poles
(mm)
- Parallel arrangement 1270 1750 1750 2330 3520 3430 4755 )
- Series arrangement 1790 2700 3150 3530 4920 5350 6925 )
Main dimensions in drawing (mm)
6 Horizontal double break disconnector | Product brochure
Notes
Product brochure | Horizontal double break disconnector 7
Contact us
Pub
lic1048991o
n1H
YD
8000
04-0
01copy
Cop
yrig
ht 2
012
AB
B
All
right
s re
serv
edNote ABB Ltd is working continuously to
improve the products We therefore reserve the right to change designs dimensions and data without prior notice
ABB India LimitedHigh Voltage products Maneja Vadodara 390 013 India Phone +91-265-2638930 Email pt-exportsinabbinabbcom
wwwabbcomhighvoltage
Product brochure | Horizontal double break disconnector 3
Maximum reliability and minimal maintenance
Minimized contact resistance (energy efficient solution)The current carrying aluminum conductors have no joints to minimize circuit resistance
No external springs in contact fingers for maximum reliability The contact fingers of the moving contacts of disconnector type eDB are designed from special conducting material and without external springs for increased reliability
Easy and quick erection The current carrying conductors and rotary pedestals are designed for easy adjusting and alignment
Low friction design for smooth operation Maintenance-free linkages with stainless steel rod-end bearings require less drive power for operation and provide smooth motion transmission without any disturbance in the settings (Corrosion ndash free electrical and mechanical joints)
Dead center interlocking for reliability under extreme conditions The dead center interlocking of operating mechanisms ensure that there are no inadvertent changes in the open or close switching position even under extreme external conditions such as storms earthquakes etc
Superior design of mechanical interlock The mechanical interlock between the earthing switch and main blade is designed in a way such that there is no scope for malfunction
Ice breaking capacity The disconnectors are capable of operating under severe ice conditions
Strong rotary pedestals This ensures that the deflection remains unchanged at high mechanical loads
Suitable for wide range of environmental conditions The disconnectors can operate in a wide range of temperatures as well as under polluted environmental conditions
Minimal maintenance Superior material and lubricant used in the encapsulation of the pedestals makes the disconnectors practically maintenance-free
Design based on cutting-edge technology and experienceThe horizontal double break disconnectors type eDB consist of a steel base frame with one rotary pedestal insulators current carrying conductors (current path) and driving mechanisms Steel components are hot dip galvanized to protect against atmospheric influences Each of the three phases of the disconnector consists of one insulator mounted on maintenance free sealed rotary pedestal and two support insulators which support terminal pads and fixed contacts which are carried by the steel base frame The current transfer takes place between two stationary terminal pads When closed the contact fingers glides over the fixed contact which establishes connection between the high- voltage terminal pads Flat terminal plates can be provided as per DIN standard 46203 NEMA or any other standards
Fixed contact and terminal pad of 1600 A eDB
Technical data
Technical Data Voltage 725 kV 123 kV 145 kV 170 kV 245 kV 300 kV 362 kV 420 kV
Type designation eDB725 eDB123 eDB145 eDB170 eDB245 eDB300 eDB362 eDB420
Rated voltage (Ur) kV 725 123 145 170 245 300 362 420
Rated frequency (fr) Hz 5060
Rated normal current (Ir) A 1600 2500
Rated short-time withstand
current rated duration of short
circuit (Iktk)
kA s
405063 1
Rated peak withstand
current (Ip)
kAp
25x Ik (for 50 Hz) 26x Ik (for 60 Hz)
Basic Insulation Level
Power frequency withstand
voltage for 1 minute
To earth and between poles
Across the isolating distance
Lightning impulse withstand
voltage
To earth and between poles
Across the isolating distance
Switching impulse withstand
voltage
To earth and between poles
Across the isolating distance
kV
kV
kVp
kVp
kVp
kVp
140
160
325
375
-
-
230
265
550
650
-
-
275
315
650
750
-
-
325
375
750
860
-
-
460
530
1050
1200
-
-
395
435
1050
1050(+170)
850
700(+245)
450
520
1175
1175(+205)
950
800(+295)
520
610
1425
1425(+240)
1050
900(+345)
36 kV on demand
Higher currents on request
3s for 40 kA
4 Horizontal double break disconnector | Product brochure
145 kV eDB disconnector
Mode of operation
The disconnector and earthing switch are operated via independent operating mechanisms
The operating energy from the operating mechanism of the disconnector is transmitted via operating rod to the rotary pedestal The three phases of the disconnector are connected by gang operating linkages for three phase operation During opening and closing operation the current path mounted on rotory insulator rotate through an angle of approximately 76deg
Operating mechanism All disconnectors can be supplied by manual or motor operated mechanism as required by the customer Each three-pole disconnector or earthing switch group requires only one individual operating mechanism(s) The coupling rods between the individual poles can be continuously adapted
Operating mechanisms contain auxiliary switches for control and signaling as well as provisions for electrical interlocks Three phase operation is conducted via mechanical or electrical gang operation
For maximum reliability the main contacts of the disconnector and earthing switch pass through the dead center positions shortly before they reach the end positions This prevents accidental opening or closing of the units due to external influences (eg short-circuits storm earthquake)
Linkages with spherical bearings
Bearing on frame assembly
InterlocksThe disconnector and earthing switch (when supplied) are mechanically interlocked In operating mechanisms a blocking magnet can be installed as an additional interlocking facility which in disconnected condition makes operation of the operating mechanism impossible
Earthing switch unit The earthing switch unit an optional assembly consists of a hinged-type earthing switch fixed at the base frame The unit can be mounted on either of the contact sides or on both sides as required
In case of the earthing switch the operating energy is transmitted to the earthing switch shaft The tubular contact arm switngs upward when the unit is closing
Product brochure | Horizontal double break disconnector 5
Easy installation
The disconnectors are delivered in following assemblies - lower part with rotary pedestals and operating rod current path support insulators and operating mechanism As all mechanical adjustments are carried out in the factory only mounting of the assemblies installation of the coupling rods between the poles connection of the high-tension leads and
the electrical connection leading to the operating mechanisms is required at the site
Stud bolts are provided to compensate rapidly and exactly any inaccuracies in insulator position caused due to tensile forces
Parallel installation
Series installation
A
D
B
E
C
70deg
PminPmin
Pmin Pmin
70deg
Dimensions Voltage (kV)
Type
725
eDB725
123
eDB123
145
eDB145
170
eDB170
245
eDB245
300
eDB300
362
eDB362
420
eDB420
A Support insulator distance (mm) 1230 1720 1720 2200 2800 2800 4800 4800
B Base frame length (mm) 1510 2000 2000 2600 3200 3200 5230 5230
C Insulator height (mm) 770 1220 1500 1700 2300 2300 3650 3650
D Disconnector height (mm) 975 1665 1745 1930 2550 2550 3960 3960
E Earth switch attachment length (mm) 375 max 375 max 375 max 400 max 400 max 400 max 450 1100
P Minimum distance between poles
(mm)
- Parallel arrangement 1270 1750 1750 2330 3520 3430 4755 )
- Series arrangement 1790 2700 3150 3530 4920 5350 6925 )
Main dimensions in drawing (mm)
6 Horizontal double break disconnector | Product brochure
Notes
Product brochure | Horizontal double break disconnector 7
Contact us
Pub
lic1048991o
n1H
YD
8000
04-0
01copy
Cop
yrig
ht 2
012
AB
B
All
right
s re
serv
edNote ABB Ltd is working continuously to
improve the products We therefore reserve the right to change designs dimensions and data without prior notice
ABB India LimitedHigh Voltage products Maneja Vadodara 390 013 India Phone +91-265-2638930 Email pt-exportsinabbinabbcom
wwwabbcomhighvoltage
Technical data
Technical Data Voltage 725 kV 123 kV 145 kV 170 kV 245 kV 300 kV 362 kV 420 kV
Type designation eDB725 eDB123 eDB145 eDB170 eDB245 eDB300 eDB362 eDB420
Rated voltage (Ur) kV 725 123 145 170 245 300 362 420
Rated frequency (fr) Hz 5060
Rated normal current (Ir) A 1600 2500
Rated short-time withstand
current rated duration of short
circuit (Iktk)
kA s
405063 1
Rated peak withstand
current (Ip)
kAp
25x Ik (for 50 Hz) 26x Ik (for 60 Hz)
Basic Insulation Level
Power frequency withstand
voltage for 1 minute
To earth and between poles
Across the isolating distance
Lightning impulse withstand
voltage
To earth and between poles
Across the isolating distance
Switching impulse withstand
voltage
To earth and between poles
Across the isolating distance
kV
kV
kVp
kVp
kVp
kVp
140
160
325
375
-
-
230
265
550
650
-
-
275
315
650
750
-
-
325
375
750
860
-
-
460
530
1050
1200
-
-
395
435
1050
1050(+170)
850
700(+245)
450
520
1175
1175(+205)
950
800(+295)
520
610
1425
1425(+240)
1050
900(+345)
36 kV on demand
Higher currents on request
3s for 40 kA
4 Horizontal double break disconnector | Product brochure
145 kV eDB disconnector
Mode of operation
The disconnector and earthing switch are operated via independent operating mechanisms
The operating energy from the operating mechanism of the disconnector is transmitted via operating rod to the rotary pedestal The three phases of the disconnector are connected by gang operating linkages for three phase operation During opening and closing operation the current path mounted on rotory insulator rotate through an angle of approximately 76deg
Operating mechanism All disconnectors can be supplied by manual or motor operated mechanism as required by the customer Each three-pole disconnector or earthing switch group requires only one individual operating mechanism(s) The coupling rods between the individual poles can be continuously adapted
Operating mechanisms contain auxiliary switches for control and signaling as well as provisions for electrical interlocks Three phase operation is conducted via mechanical or electrical gang operation
For maximum reliability the main contacts of the disconnector and earthing switch pass through the dead center positions shortly before they reach the end positions This prevents accidental opening or closing of the units due to external influences (eg short-circuits storm earthquake)
Linkages with spherical bearings
Bearing on frame assembly
InterlocksThe disconnector and earthing switch (when supplied) are mechanically interlocked In operating mechanisms a blocking magnet can be installed as an additional interlocking facility which in disconnected condition makes operation of the operating mechanism impossible
Earthing switch unit The earthing switch unit an optional assembly consists of a hinged-type earthing switch fixed at the base frame The unit can be mounted on either of the contact sides or on both sides as required
In case of the earthing switch the operating energy is transmitted to the earthing switch shaft The tubular contact arm switngs upward when the unit is closing
Product brochure | Horizontal double break disconnector 5
Easy installation
The disconnectors are delivered in following assemblies - lower part with rotary pedestals and operating rod current path support insulators and operating mechanism As all mechanical adjustments are carried out in the factory only mounting of the assemblies installation of the coupling rods between the poles connection of the high-tension leads and
the electrical connection leading to the operating mechanisms is required at the site
Stud bolts are provided to compensate rapidly and exactly any inaccuracies in insulator position caused due to tensile forces
Parallel installation
Series installation
A
D
B
E
C
70deg
PminPmin
Pmin Pmin
70deg
Dimensions Voltage (kV)
Type
725
eDB725
123
eDB123
145
eDB145
170
eDB170
245
eDB245
300
eDB300
362
eDB362
420
eDB420
A Support insulator distance (mm) 1230 1720 1720 2200 2800 2800 4800 4800
B Base frame length (mm) 1510 2000 2000 2600 3200 3200 5230 5230
C Insulator height (mm) 770 1220 1500 1700 2300 2300 3650 3650
D Disconnector height (mm) 975 1665 1745 1930 2550 2550 3960 3960
E Earth switch attachment length (mm) 375 max 375 max 375 max 400 max 400 max 400 max 450 1100
P Minimum distance between poles
(mm)
- Parallel arrangement 1270 1750 1750 2330 3520 3430 4755 )
- Series arrangement 1790 2700 3150 3530 4920 5350 6925 )
Main dimensions in drawing (mm)
6 Horizontal double break disconnector | Product brochure
Notes
Product brochure | Horizontal double break disconnector 7
Contact us
Pub
lic1048991o
n1H
YD
8000
04-0
01copy
Cop
yrig
ht 2
012
AB
B
All
right
s re
serv
edNote ABB Ltd is working continuously to
improve the products We therefore reserve the right to change designs dimensions and data without prior notice
ABB India LimitedHigh Voltage products Maneja Vadodara 390 013 India Phone +91-265-2638930 Email pt-exportsinabbinabbcom
wwwabbcomhighvoltage
Mode of operation
The disconnector and earthing switch are operated via independent operating mechanisms
The operating energy from the operating mechanism of the disconnector is transmitted via operating rod to the rotary pedestal The three phases of the disconnector are connected by gang operating linkages for three phase operation During opening and closing operation the current path mounted on rotory insulator rotate through an angle of approximately 76deg
Operating mechanism All disconnectors can be supplied by manual or motor operated mechanism as required by the customer Each three-pole disconnector or earthing switch group requires only one individual operating mechanism(s) The coupling rods between the individual poles can be continuously adapted
Operating mechanisms contain auxiliary switches for control and signaling as well as provisions for electrical interlocks Three phase operation is conducted via mechanical or electrical gang operation
For maximum reliability the main contacts of the disconnector and earthing switch pass through the dead center positions shortly before they reach the end positions This prevents accidental opening or closing of the units due to external influences (eg short-circuits storm earthquake)
Linkages with spherical bearings
Bearing on frame assembly
InterlocksThe disconnector and earthing switch (when supplied) are mechanically interlocked In operating mechanisms a blocking magnet can be installed as an additional interlocking facility which in disconnected condition makes operation of the operating mechanism impossible
Earthing switch unit The earthing switch unit an optional assembly consists of a hinged-type earthing switch fixed at the base frame The unit can be mounted on either of the contact sides or on both sides as required
In case of the earthing switch the operating energy is transmitted to the earthing switch shaft The tubular contact arm switngs upward when the unit is closing
Product brochure | Horizontal double break disconnector 5
Easy installation
The disconnectors are delivered in following assemblies - lower part with rotary pedestals and operating rod current path support insulators and operating mechanism As all mechanical adjustments are carried out in the factory only mounting of the assemblies installation of the coupling rods between the poles connection of the high-tension leads and
the electrical connection leading to the operating mechanisms is required at the site
Stud bolts are provided to compensate rapidly and exactly any inaccuracies in insulator position caused due to tensile forces
Parallel installation
Series installation
A
D
B
E
C
70deg
PminPmin
Pmin Pmin
70deg
Dimensions Voltage (kV)
Type
725
eDB725
123
eDB123
145
eDB145
170
eDB170
245
eDB245
300
eDB300
362
eDB362
420
eDB420
A Support insulator distance (mm) 1230 1720 1720 2200 2800 2800 4800 4800
B Base frame length (mm) 1510 2000 2000 2600 3200 3200 5230 5230
C Insulator height (mm) 770 1220 1500 1700 2300 2300 3650 3650
D Disconnector height (mm) 975 1665 1745 1930 2550 2550 3960 3960
E Earth switch attachment length (mm) 375 max 375 max 375 max 400 max 400 max 400 max 450 1100
P Minimum distance between poles
(mm)
- Parallel arrangement 1270 1750 1750 2330 3520 3430 4755 )
- Series arrangement 1790 2700 3150 3530 4920 5350 6925 )
Main dimensions in drawing (mm)
6 Horizontal double break disconnector | Product brochure
Notes
Product brochure | Horizontal double break disconnector 7
Contact us
Pub
lic1048991o
n1H
YD
8000
04-0
01copy
Cop
yrig
ht 2
012
AB
B
All
right
s re
serv
edNote ABB Ltd is working continuously to
improve the products We therefore reserve the right to change designs dimensions and data without prior notice
ABB India LimitedHigh Voltage products Maneja Vadodara 390 013 India Phone +91-265-2638930 Email pt-exportsinabbinabbcom
wwwabbcomhighvoltage
Easy installation
The disconnectors are delivered in following assemblies - lower part with rotary pedestals and operating rod current path support insulators and operating mechanism As all mechanical adjustments are carried out in the factory only mounting of the assemblies installation of the coupling rods between the poles connection of the high-tension leads and
the electrical connection leading to the operating mechanisms is required at the site
Stud bolts are provided to compensate rapidly and exactly any inaccuracies in insulator position caused due to tensile forces
Parallel installation
Series installation
A
D
B
E
C
70deg
PminPmin
Pmin Pmin
70deg
Dimensions Voltage (kV)
Type
725
eDB725
123
eDB123
145
eDB145
170
eDB170
245
eDB245
300
eDB300
362
eDB362
420
eDB420
A Support insulator distance (mm) 1230 1720 1720 2200 2800 2800 4800 4800
B Base frame length (mm) 1510 2000 2000 2600 3200 3200 5230 5230
C Insulator height (mm) 770 1220 1500 1700 2300 2300 3650 3650
D Disconnector height (mm) 975 1665 1745 1930 2550 2550 3960 3960
E Earth switch attachment length (mm) 375 max 375 max 375 max 400 max 400 max 400 max 450 1100
P Minimum distance between poles
(mm)
- Parallel arrangement 1270 1750 1750 2330 3520 3430 4755 )
- Series arrangement 1790 2700 3150 3530 4920 5350 6925 )
Main dimensions in drawing (mm)
6 Horizontal double break disconnector | Product brochure
Notes
Product brochure | Horizontal double break disconnector 7
Contact us
Pub
lic1048991o
n1H
YD
8000
04-0
01copy
Cop
yrig
ht 2
012
AB
B
All
right
s re
serv
edNote ABB Ltd is working continuously to
improve the products We therefore reserve the right to change designs dimensions and data without prior notice
ABB India LimitedHigh Voltage products Maneja Vadodara 390 013 India Phone +91-265-2638930 Email pt-exportsinabbinabbcom
wwwabbcomhighvoltage
Notes
Product brochure | Horizontal double break disconnector 7
Contact us
Pub
lic1048991o
n1H
YD
8000
04-0
01copy
Cop
yrig
ht 2
012
AB
B
All
right
s re
serv
edNote ABB Ltd is working continuously to
improve the products We therefore reserve the right to change designs dimensions and data without prior notice
ABB India LimitedHigh Voltage products Maneja Vadodara 390 013 India Phone +91-265-2638930 Email pt-exportsinabbinabbcom
wwwabbcomhighvoltage
Contact us
Pub
lic1048991o
n1H
YD
8000
04-0
01copy
Cop
yrig
ht 2
012
AB
B
All
right
s re
serv
edNote ABB Ltd is working continuously to
improve the products We therefore reserve the right to change designs dimensions and data without prior notice
ABB India LimitedHigh Voltage products Maneja Vadodara 390 013 India Phone +91-265-2638930 Email pt-exportsinabbinabbcom
wwwabbcomhighvoltage