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Pole Mounted Switch Disconnector NPS
630 A, up to 36 kV
NPS
Pole Mounted Switch Disconnectors
In operation everywhere in Medium Voltage Networks with or without
automation systems. With references around the world from the Artic Circle
to the most tropical of jungles.
ABB is a global market leader in power technology products. We offer efficiency,
quality and competitiveness.
We believe that flexible solutions and competent support are key elements
for your continued success. We also believe that your distribution system is
cost-effective when it matches the requirements of the customers operation and
process – no more and no less. That is why ABB develops and supplies solutions
perfectly tuned to user requirements and standards.
Through ABB’s worldwide presence, we can offer local support and service
globally. As your partner; we believe that these are key elements that enable
you to continuously improve the performance in your networks.
Our NPS Switch Disconnector has been carefully designed and developed in
co-operation with utilities providers to meet the most diverse of customer
requirements and to maintain maximum flexibility. Highly reliable, our
NPS can be the key element of your rural distribution applications.
Index
3
4-5
NPS as a Line Switch Disconnector
6-7
NPS for Transformer Switch Disconnector/
NPF fuse holder
8-9
Components for substation switch disconnectors
10
Feeder Automation
11
Feeder Automation solutions for
air insulated switch disconnectors
12-13
2
Dipee.info
Reliable air break technology
for your distribution network
DTU Operating Device for
pole mounted switch disconnectors
type NPS or other types
14
Breaking devices on NPS24B for max. Ith/Idyn 16/40 kA
15
Breaking devices on NPS24A for max. Ith/Idyn 20/50 kA
15
Breaking devices on NPS36A for max. Ith/Idyn 21/52 kA
16
Unique design
17
Manual operating mechanisms
19
Technical data
Reliable air break technology
for your distribution network
The NPS offers a complete range from off-load
disconnectors to switch disconnectors with different
breaking devices, all designed according to IEC
standard for limited purpose and general purpose
switch disconnectors. The design is made for all
climate conditions in different installations and building
standards and can be either manually or remotely
operated. The NPS also offer a modular construction
which can easily be expanded or upgraded in the
future.
The extensive range of accessories makes the NPS
suitable for every customer, pole and building
standard.
Flexible concept
From the simplest of manually operated units to
motorized and automated remotely controlled units
Wide range of accessories
Upgradeable in switching performances
Enhanced performance and improved reliability
Only insulators with the best materials are used
- cycloaliphatic epoxy with over 30 years of field
experience in more than 50 countries
- high quality silicone or porcelain insulators are
also available
Lightweight design with a limited number of
parts guarantees a long lifetime and trouble-free
operation
Easy and smart integrations
Adaptable to all customer/
country building standards
Modular concept
Suitable for live working
ABB / Pole Mounted Switch Disconnector NPS
Dipee.info
3
NPS as a Line Switch Disconnector
4
Dipee.info
ABB / Pole Mounted Switch Disconnector NPS
Crossarm installation
One of the most common building standards where the line switch
disconnector is integrated on the same crossarm as the lines.
Wooden poles are most often used for this type of installation.
Installation below live line
Some building styles and standards require a separate crossarm
below the line crossarm.
Sufficient clearances to the pole and between phases can be
arranged by the flexible arrangement of phase elements.
Installation above live line
A typical installation example above the live line
on a steel structure pole.
Vertical installation
Used for branching lines down to cables.
The vertically installed switch disconnector is also used
as a transformer switch disconnector.
Two pole mounting
All above examples are also available for two-pole mounting.
Pole fitting accessories for various pole types are also available
- wooden poles
- concrete poles
- steel poles and structures
ABB / Pole Mounted Switch Disconnector NPS
Dipee.info
5
NPS for Transformer Switch Disconnector/
NPF fuse holder
6
ABB / Pole Mounted Switch Disconnector NPS
The NPS switch disconnector can be equipped with several types of
fuse holders. The vertically mounted NPS can be used as transformer
switch disconnector. The breaking capacity of the whip (25/50 A) is
enough for disconnecting a fully loaded distribution transformer up to
800/1600 kVA.
NPS24B1-J2
and NPAC5
If the pole element is horizontally mounted the fuse holder for HRC fuses
(6.3, 16, 25 A) or (SMIA-KR_) melting fuses can be easily integrated
(up to 63 A) to the switch disconnector.
The fuses are replaced using isolated rods from ground level.
NPS24B1-J2,
NPAC9-J2 and
NPAF7-J2
NPS can be equipped with integrated earthing contact for open
and earthed position.
The separate fuse holder for HRC and SMIA-KR_ can also be equipped
with surge arresters for one-,two-, or three-phase installation.
NPS24B1-J2
NPAE5
NPF24B2
NPS can be equipped with a separate fuse holder for DIN-type fuses
(CEF outdoor HRC fuses).
IEC 282
NPF24E5
ABB / Pole Mounted Switch Disconnector NPS
7.2 kV
12.0 kV
17.5 kV
24.0 kV
36.0 kV
up to
up to
up to
up to
up to
ANSI
160 A
100 A
100 A
100 A
40 A
15.5 kV
25.8 kV
38.0 kV
160 A
100 A
40 A
7
Components for substation switch disconnectors
8
ABB / Pole Mounted Switch Disconnector NPS
A wide range of accessories are available for different substation solutions.
The modular construction of NPS enables the most demanding customer
requirements to be fulfilled.
NPS24B1-J2
NPAC7
NPS24B1-J2
KOHU24A2
MWK
NPS24B1-J2,
NPAC9-J2 and
NPAF7-J2
Third insulator with flexible bars.
Flexible droppers and additional
insulators for lowering the cable
connections.
CT’s and Surge arresters.
Basic disconnector module.
NPS24B1-WWJ2
25 A
NPS24B1-J2
KOHU24A2
MWK
50 A
NPS24B1-J2
NPS24B1-K1J2
250 A
630 A
Automatic earthing
in open position.
NPS24B1-J2
NPAE5
Earthing on one or both sides.
NPS24B1-J2
NPS-ZM1
NPS24B-K4J2
NPS24B1-K5J2
Fuse base with support
for surge arrester.
NPF24B2
ABB / Pole Mounted Switch Disconnector NPS
9
Feeder Automation
10
ABB / Pole Mounted Switch Disconnector NPS
Feeder Automation solutions for
air insulated switch disconnectors
Our disconnector terminal units [DTU’s] are designed for remote control
and local automation applications of NPS switch disconnectors and other
similar types with up/down operating movement.
Together with REC 501 or REC 523 monitoring and control units both simple
applications such as remote open/close operations and more sophisticated
auto sectionalizing schemes and measurements can be realized.
UEMC50
Standard communication protocols available for
ANSI X3.28 HD only with REC 501
RP570 only with REC 501
IEC 60870-101, unbalanced
MODBUS ASCII & RTU format
DNP 3.0
DTU115
Analog inputs available for standard CT’s and VT’s.
DTU135
DTU’s can also be used without integrated motor mechanism.
These can be used in applications such as master terminal for monitoring
and controlling existing motor devices for indoor and outdoor switch
disconnectors and other motor operated apparatus.
It is also applicable for switching devices with an integrated
actuator.
DTU131
UEMC-A
One terminal with REC 523 can control up to 4 slave units
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DTU135
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DTU115
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ABB / Pole Mounted Switch Disconnector NPS
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UEMC50L1-24VDC
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UEMC50H1-24VDC
11
DTU Operating Device for
pole mounted switch disconnectors
type NPS or other types
12
ABB / Pole Mounted Switch Disconnector NPS
UEMC50L1
UEMC50H1
DTU111
UEMC-A2
DTU131
UEMC-A3
The product range includes master and slave units
Can be equipped with third party electronics/IED
Two different cabinet sizes
Complete with batteries and chargers
Up/down tube operation of disconnectors
Stainless steel cabinet and mechanism
Dust tight (IP55) to secure long lifetime of critical electrical components
High torque, alternative 1.2 sec or 3 sec operating time
Best possible materials used
Over 30 years experience
Operating voltages: 24, 48, 110, 220 VDC 110, 230 VAC
Terminals for installing different IED’s.
Cabinets available with different options for batteries, battery chargers etc.
ABB / Pole Mounted Switch Disconnector NPS
13
Breaking devices on NPS24B for max. Ith/Idyn 16/40 kA
Due to the flexible design of the basic phase element, the NPS can be equipped with a range of breaking devices.
Data
NPS Basic pole element
Usage
Disconnector
(IEC)
No breaking capacity
For disconnecting
functions only.
Provides a safe
isolating distance.
Limited purpose
switch
disconnector
(IEC)
Breaking
25 A/24 kV
40 A/12 kV
For disconnecting
functions only.
Provides a safe
isolating distance.
Limited purpose
switch
disconnector
(IEC)
Breaking
50 A/24 kV
80 A/12 kV
With extended
breaking capacity in
rural areas and
transformer loads.
Limited purpose
switch
disconnector
(IEC)
Breaking
250 A/24 kV
For main lines and
substations where
larger breaking
capacity is needed.
General purpose
switch
disconnector
(IEC)
Maximum
- breaking
- independent
spring assisted
making capacity
630 A/24 kV
For main lines and
substations where
both breaking and
making capacity is
needed. This
solution is excellent
for remote and auto
sectionalizers.
NPS24B1-WWJ2
NPS with 25 A breaking whip
NPS24B1-J2
NPS24B1-J3
NPS with 50 A breaking whip
NPS24B1-K1J2
NPS with 250 A breaking chamber
NPS24B1-K4J2
NPS with K5 air making and breaking chamber
8 kA/24 kV
12.5 kA/12 kV
NPS24B1-K5J2, NPS24B1-K5J3 and NPAC9-J3
14
ABB / Pole Mounted Switch Disconnector NPS
Breaking devices on NPS24A for max. Ith/Idyn 20/50 kA
For overhead networks with BIL up to 150 kV.
Silicone insulator J3
NPS24A2-J3
NPS24A2-K5J3
NPS24A2-K5J3
NPAC1-J3
Breaking devices on NPS36A for max. Ith/Idyn 21/52 kA
For overhead networks with BIL, up to 200 kV NPS36 can be used.
Whip (16 A) or breaking chamber K3 (400 A) can be used as breaking elements.
Two alternative silicone insulators (J2 or J3)
NPS36A2-J2
ABB / Pole Mounted Switch Disconnector NPS
NPS36A2-K3J2
NPS36A2-K3J2
NPAC11-J2
15
Unique design
The unique design on breaking whips and dry type breaking
chambers eliminates the risk of oil leakage.
Risk of oil eliminated
Pollution risk for soil waters
Safety risk in case of failed interruption
No need to check oil level or compensate for possible leakages
Risk of conventional air breaking chambers eliminated by
protected breaking contacts
Malfunctions due to dust, sand, ice and small animals
Risk of terrain fires due to arcing
The exceptionally high number of making operations
[>50 times 8 kA] enables use to locate faulty line sections by
operating against the fault.
16
Manual operating mechanisms
UEKE 5A1
Hook stick lever
Hook stick operation mechanism for NPS24B_ models.
Also available for mounting on lower level.
UEKO 1A1
One hand grip operating mechanism
for low end disconnectors
UEKE 3A1
Standard two hand grip operating
mechanism for all NPS_ models.
UEKE 3B1
Standard two hand grip operating mechanism
for all NPS_ models with additional quick
adjustment rod.
UEKE 2/1
With auxiliary contacts and heating
element IP55.
ABB / Pole Mounted Switch Disconnector NPS
UEKE 6A1
Wire operation
17
NPS Easy is factory assembled
for 80 x 80 or 100 x 100 mm
RHS-beam.
18
ABB / Pole Mounted Switch Disconnector NPS
Technical data
Type
NPS24B1-J2
NPS24B1-J3
NPS24A2-J3
NPS36A2-J2
NPS36A2-J3
Insulator
Epoxy
Silicone
Silicone
Silicone
Silicone
- creepage
mm
740
715
760
1205
1365
- arcing distance (insulator)
mm
272
300
305
450
465
- arcing distance (min to earth)
mm
200
255
260
380
385
- cantilever strength
kN
2
9
9
6.2
6.2
- salt fog test, IEC 507, (1 h) salt solution
g/l
160
-
-
-
-
Rated voltage, max.
kV
24
24
24
36
36
Rated current
A
630
630
630
630
630
Rated frequency
Hz
50/60
50/60
50/60
50/60
50/60
kV
145
145
165
220
1)
220
1)
1)
200
1)
Rated lighting impulse withstand voltage
- across the isolating distance
- to earth and between phases
kV
125
125
150
200
kV
75
75
75
88
1)
88
1)
1)
80
1)
Rated power frequency withstand
voltage in wet conditions
- across the isolating distance
- to earth and between phases
kV
55
55
55
80
mm
260
260
350
430
430
Min. isolating distance
mm
200
200
230
350
350
Rated short-time withstand current
1 s kA
16
16
20
21
1)
21
1)
16
1)
52
1)
Min. distance between phases
2)
3 s kA
12.5
12.5
16
16
1)
kA
40
40
50
52
1)
kA
5
12 kVA
40
40
40
-
-
15 kVA
32
32
32
-
-
24 kVA
25
25
25
16
16
36 kVA
-
-
-
16
16
A
15
15
15
10
10
Operat.
2000
2000
2000
2000
2000
Permissible ice thickness
mm
-
Ambient temperature limits
°C
-50…+40
-40…+40
-
-40…+40
-40…+40
Rated peak withstand current
Rated short-circuit making current
Rated breaking current
3)
5
3)
5
3)
7.5
4)
7.5
4)
5)
- mainly active load with 100 closing
and opening operations
- cable- and line-charging with 20
closing and opening operations
Mechanical endurance
6)
1) Type NPS36A204 with earthing contact have lower ratings
- lightning impulse withstand voltage 170 kV
- power frequency wet withstand voltage 80 kV
- short-time withstand current 16 kA 1 s
- peak withstand current 40 kA
2) With breaking chambers
3) 7 closing operations, manual or motor
4) fast manual operation
5) When standard breaking whips are used special whips 24 kV 50 A available
6) With breaking chambers
ABB / Pole Mounted Switch Disconnector NPS
19
NPS5GB 06-04/07-03
ABB Oy
MV Apparatus & Switchgear
P.O.Box 613, FI-65101 Vaasa, Finland
Tel: +358 10 22 11
Fax: +358 10 22 44661
www.abb.com
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