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NXPLUS C
Siemens NXPLUS C User Manual
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11 • INSTAL
LATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9
19.1
Posit
ion indicato
rs
19.2
"Spring charged" ind
icator
19.3
Op
erat
ion
s co
unt
er
One operating cycle corresponds to one closi
ng operation and one op
e
ning o
peration of the
circui
t-breake
r.
Switch position
CLOSED
O
PEN
EAR
THED
Faul
ty position
Contacts are not in
defined end position
REA
DY-TO-EARTH
Disconnector
—
Earthing switc
h
—
Circuit-break
er
and
vacu
um contacto
r
—
—
Closing spring
charged
Clo
sing spring not charged
Numbe
r of operating
cyc
les
187
189
Table of Contents
Default Chapter
3
Table of Contents
3
1 Signal Terms and Definitions
6
2 General Instructions
6
Safety Instructions
6
3 Security
8
4 Due Application
9
5 Qualified Personnel
9
6 Features
10
7 Panel Types
12
Circuit-Breaker Panels
13
8 Examples for Panel Versions
13
Disconnector Panels
17
Bus Sectionalizer
19
Switch-Disconnector Panel
21
Vacuum Contactor Panel
22
Metering Panel
23
Ring-Main Panel
23
Circuit-Breaker
24
9 Components
24
Vacuum Contactor
25
Three-Position Disconnector
26
Three-Position Switch-Disconnector
26
Operating Mechanisms for Three-Position Switch
27
Voltage Transformers 4MT
28
Current Transformers 4MC
31
HV HRC Fuse Assembly
32
Busbar System
33
Cable Connection
34
Ready-For-Service Indicator
52
Interlocks
53
Accessories
54
Voltage Detecting Systems
54
Complete Switchgear
58
10 Technical Data
58
Iec 62271-200
59
Standards, Specifications, Guidelines
60
Selection of HV HRC Fuse-Links
61
Motor Protection Table (with HV HRC Fuses Make SIBA)
70
Fuse Protection Table for Metering Panel (with HV HRC Fuse-Links Make SIBA)
71
Rating Plates
72
Vacuum Circuit-Breaker
72
Three-Position Disconnector for Circuit-Breaker, Disconnector and Bus Sectionalizer Panels ≥ 1000 a
76
Three-Position Switch-Disconnector for Switch-Disconnector Panels, Ring-Main Panels and Circuit-Breaker Panels up to 630 A, Vacuum Contactor Panel and Metering Panel
76
10.11 Endurance Classes
77
Vacuum Contactor
78
10.13 Insulating Gas
79
11 End of Life
80
12 Constructional Stipulations
81
Installation
81
Switchgear Room
81
Constructional Data of the Foundation
84
Transport Units
94
13 Before Installation
96
Intermediate Storage
96
Preliminary Clarifications
96
Tools/Auxiliary Means
97
Comments on Electromagnetic Compatibility
98
Completeness and Transport Damages
100
Packing and Transport Unit
100
14 Unloading and Erecting the Switchgear
100
Unloading and Transporting to Place of Installation
101
Checking the Ready-For-Service Indicator
105
15 Assembling the Switchgear
107
Aligning and Joining the Panels
108
Fastening the Panel to the Foundation
110
Removing Transport Braces
110
Assembling the Busbars
111
Mounting the Busbar Support
122
Installi Ng Current Transformers on the Busbar
124
Installing Busbar Voltage Transformers
127
Interconnecting the Earthing Busbars
132
Switchgear Earthing
132
15.10 Installing the Low-Voltage Compartment
133
15.11 Installing the Horizontal Pressure Relief Duct
134
15.12 Installing the Switchgear Termination
143
15.13 Mounting the Busbar Covers
144
15.14 Mounting the Air Guides
151
15.15 Extension with Individual Panels
154
16 Electrical Connections
154
Installation Work at the Floor Cover
155
Connecting Cable T-Plugs
158
Panels 2000 A, 2500 a with Double Connections
163
Connecting Surge Arresters
164
Connecting Surge Limiters
165
Connecting Auxiliary Circuits
166
17 Installation of Degree of Protection Versions IP31D, IP32D and IP34D
171
IP31D - Protection against Vertically Falling Water Drops
171
IP32D - Protection against Vertically Falling Water Drops for Switchgear Inclined up to 15
175
IP34D - Protection against Splashing Water from any Direction
176
18 Commissioning
177
Final Work
177
Checking the Accessories
179
Function Test / Test Operation
179
Instructing Operating Personnel
179
Performing the Power- Frequency Voltage Test
183
Applying Operating Voltage
184
Correcting Circuit Diagrams
184
Primary Injection Test
184
Operation
186
19 Control Elements and Indicators
187
Operations Counter
188
Position Indicators
188
Spring Charged" Indicator
188
Circuit-Breaker Locking Device for "Feeder Earthed
189
Ready-For-Service Indicator
189
Charging the Closing Spring
190
Closing the Circuit-Breaker
190
Opening the Circuit-Breaker
190
20 Operating the Circuit-Breaker
190
Circuit-Breaker Test Operation
191
21 Operating the Three-Position Switch
192
Closing the Three-Position Switch
193
Opening the Three-Position Switch
193
De-Earthing with the Three-Position Switch
194
Earthing/Ready-To-Earth with the Three-Position Switch
194
Operating the Three-Position Switch with Motor-Operating Mechanism
195
Protection Tripping of the Switch-Fuse Combination
195
Emergency Operation of the Three-Position Switch with Slow Motion Mechanism (900 MM Panel Width)
196
22 Work-In-Progress Earthing
201
LRM Plug-In Sockets
203
23 Verification of Safe Isolation from Supply
203
VOIS and CAPDIS Indications
205
WEGA Indications
207
24 Replacing HV HRC Fuse-Links
208
Disconnecting the Feeder Voltage Transformer
212
25 Operating the Feeder Voltage Transformer
212
Connecting the Feeder Voltage Transformer
213
Operating Circuit-Breaker Panels (600 MM Panel Width)
214
26 Short Instructions
214
Operating Circuit Breaker Panels (900 MM Panel Width)
220
Operating Vacuum Contactor Panels
226
Operating Switch-Disconnector, Disconnector, Ring-Main and Metering Panels with 600 MM Panel Width
230
Operating Disconnector Panels as of 2000 a (900 MM Panel Width)
234
Operating Bus Sectionalizer Panels with 600 MM Panel Width
238
Operating Bus Sectionalizer Panels with 900 MM Panel Width
242
Operating Bus Sectionalizer Panels with Two Three-Position Disconnectors and with 600 MM Panel Width
246
Operating Bus Sectionalizer Panels with Two Three-Position Disconnectors and with 900 MM Panel Width
253
26.10 Operating the Circuit-Breaker Panel with Busbar Earthing Switch
261
27 Cable Testing
266
28 Maintenance
268
Maintenance of Circuit-Breaker 3AH25 with 30000 Operating Cycles
268
Service Information
268
29 Checks and Maintenance Work in Case of Special Operating Conditions
275
Visual Check at the Operating Mechanisms and the Three-Position Switches
276
Visual Check of Spring-Operated Mechanism
276
Visual Check of Slow Motion Mechanism
278
Visual Check of Spring-Operated/Stored-Energy Mechanism
279
Visual Check of Circuit-Breaker Operating Mechanism
281
Visual Check of Vacuum Contactor Operating Mechanism
282
Cleaning, Greasing and Lubricating the Operating Mechanisms
283
Test Operation of the Operating Mechanisms
283
30 Permissible Lubricants
284
(Motor Control Unit - Module Housing)
285
Annex
285
Application
285
Design, Function
285
Extract from the Technical Description
285
31 Extending the Switchgear or Replacing Panels and Components
284
32 Mcu-Mh
285
Fault Signals
286
Technical Data
286
Terminal Assignment of Motor Control Unit
287
Siemens Service Hotline
288
Index
289
4
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Siemens NXPLUS C Specifications
General
Brand
Siemens
Model
NXPLUS C
Category
Circuit breakers
Language
English
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