Related Manuals for Siemens NXAirS
Summary of Contents for Siemens NXAirS
- Page 1 Type NXAirS Withdrawable Metal-Enclosed Medium Voltage Switchgear up to 12kV, Air-insulated www.siemens.com.cn Answers for infrastructure and cities.
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Page 2: Table Of Contents
NXAirS Withdrawable Metal-enclosed Switchgear, Rated Voltage Up to 12kV Contents Safety instructions Symbol conception and definition General descriptions Regulations for using Qualified person NXAirS Description 5 Features Module type 6.1 Circuit breaker module 6.2 Disconnecting module 6.3 Switch-disconnector module 6.4 Metering module 6.5 Bus sectionalizer Panel construction 7.1 High-voltage compartment 7.2 Circuit Breaker module SION 7.3 Busbar compartment... - Page 3 NXAirS Withdrawable Metal-enclosed Switchgear, Rated Voltage Up to 12kV Contents NXAirS Operation 1 2 Safety Instructions 13 Operation 13.1 Operating components on the panel 13.2 Operating tools 13.3 Open and Close HV door 13.4 Push SION module to service position 13.5 Push SION module to test position 13.6 Close the Circuit Breaker 13.7 Open the Circuit Breaker 13.8 Charging the spring manually 13.9 Feeder earthing 13.10 Disconnect the earthing of feeder 13.11 Cable channel 13.12 Inserting SION module 13.13 Operation procedure of NXAirS...
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Page 4: Safety Instructions
To get necessary qualifications for transport, installation and commissioning, these persons must take part in training of Siemens, for assembly of the air-insulation medium voltage switchgear NXAirS. The construction, operation, installation and fault cleaning of the primary components are involved in the training. -
Page 5: Nxairs Description
NXAirS Withdrawable Metal-enclosed Switchgear, Rated Voltage Up to 12kV NXAirS description NXAirS description Figure 1. Front view of the switchgear 5. Features NXAirS Switch panel has the following features Factory-assemble, type-test, indoor installation, according to GB3906, IEC62271-200/VDE0671-200 standards. ● Degree of continuity: LSC 2B ● Feature of person Safety All switching operations can only be performed with front door closed ●... -
Page 6: Module Type
The disconnecting module panel is an additional module to the basic module. It's used to carry electrical power. It can not switch on electrical power. The withdrawable part in the disconnecting module NXAirS is therefore protected by a padlock against arbitrary operation (standard construction). -
Page 7: Bus Sectionalizer
NXAirS Withdrawable Metal-enclosed Switchgear, Rated Voltage Up to 12kV NXAirS description 6.5 Bus sectionalizer A bus sectionalizer consists of 2 modules: One circuit-breaker module panel and one disconnecting module used as bus riser panel. Basic components Busbar ● Withdrawable unit ● Disconnecting module ●... - Page 8 NXAirS Withdrawable Metal-enclosed Switchgear, Rated Voltage Up to 12kV NXAirS description 7.1 High voltage compartment Basic features Contain Circuit Breaker module, switch-disconnector module, disconnection module, or Metering module ● Open door from the left ● Shutters for covering the contacts automatically when the Circuit--Breaker module, Disconnecting module or Metering ●...
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Page 9: Additional Compartment To The Busbar Compartment (Optional)
NXAirS Withdrawable Metal-enclosed Switchgear, Rated Voltage Up to 12kV NXAirS description 7.3 Busbar compartment > Basic features Construction of rated current ≤ 2500A or 2500A ● Busbars made of bare flat copper, bolted from panel to panel ● Pressure release upwards ●... -
Page 10: Interlocks
NXAirS Withdrawable Metal-enclosed Switchgear, Rated Voltage Up to 12kV NXAirS description 8. Interlocks Mechanical interlocks Note: busbar earthing switch operation Additional preconditions can be locked by a padlock or Inserting the withdrawable module electromagnetic lock to avoid withdrawable module at the service truck in the panel misoperation. -
Page 11: Technical Data
NXAirS Withdrawable Metal-enclosed Switchgear, Rated Voltage Up to 12kV NXAirS description 10. Technical data 10.1 Panel Rated voltage 12kV Electrical data (maximum values) Rated power-frequency withstand voltage 42kV Rated lightning impulse withstand voltage 75kV Rated frequency 50Hz Rated short-circuit breaking current 25kA, 31.5kA, 40kA... -
Page 12: Sion
NXAirS Withdrawable Metal-enclosed Switchgear, Rated Voltage Up to 12kV NXAirS description Nameplate The nameplate is attached to the low-voltage compartment, including the description as the follows: ○ 1 Type ○ 2 Series No. 型号 出厂编号 ○ 3 Standards 适用的标准 GB3906 IEC62271-200 ○ 4 Rated voltage 额定电压 kV 额定频率 ○ 5 Rated frequency kV 额定工频耐受电压... -
Page 13: Service Information
NXAirS Withdrawable Metal-enclosed Switchgear, Rated Voltage Up to 12kV NXAirS description 11. Service information 11.1 Maintenance Maintenance during>10 years under normal environment and operation. A completed record must be made after maintenance ● All maintenance work must be carried out by qualified person ●... -
Page 14: Safety Instructions
NXAirS Withdrawable Metal-enclosed Switchgear, Rated Voltage Up to 12kV NXAirS description 12. Safety instructions Danger! HV! Danger! Don't touch the living part Assure panel be operated by qualified person Danger! Some part of the device will be up to dangerous voltage when the device and switchgear panel in operation. -
Page 15: Operating Tools
NXAirS Withdrawable Metal-enclosed Switchgear, Rated Voltage Up to 12kV Operation of NXAirS 13.2 Operating tools The following operating tools are fittings. Drawing 6. Operating handle for push in and pull out circuit breaker Drawing 7. Operating pole for circuit breaker (used for manual open / close from outside of the cabinet) Drawing 8. Operating handle for earthing switch of feeders... -
Page 16: Open And Close Hv Door
NXAirS Withdrawable Metal-enclosed Switchgear, Rated Voltage Up to 12kV Operation of NXAirS 13.3 Open and close HV door Open HV door Preconditions: Two locks are both opened; ● Truck module is in test position. ● Insert the keys into door locks and turn anticlockwise by 90˚. - Page 17 NXAirS Withdrawable Metal-enclosed Switchgear, Rated Voltage Up to 12kV Operation of NXAirS Attention! The unstable auxiliary voltage will impact the electrical interlock and mechanical interlock. If the interlock mechanism moves upwards, manual operation is not allowed due to the electrical interlock.
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Page 18: Push Sion Module To Test Position
NXAirS Withdrawable Metal-enclosed Switchgear, Rated Voltage Up to 12kV Operation of NXAirS 13.5 Push SION module to test position Preconditons for this operation Place the module into the panel; ● Close the HV door; ● The module is in working position; ● Circuit breaker is in open position;... -
Page 19: Close The Circuit Breaker
NXAirS Withdrawable Metal-enclosed Switchgear, Rated Voltage Up to 12kV Operation of NXAirS 13.6 Close the circuit breaker Preconditons for this operation Manual operation Removable part is in working position or test position; ● Spring has been enough energized. ● Drawing 12. Operating hole for mechanical close of circuit breaker Operating procedure Turn the movable door to sides through the nut. -
Page 20: Open The Circuit Breaker
NXAirS Withdrawable Metal-enclosed Switchgear, Rated Voltage Up to 12kV Operation of NXAirS 13.7 Open the circuit breaker Preconditons for this operation Manual operation Circuit breaker is in close position. ● Drawing 13. Mechanical open of circuit breaker Danger! The unstable auxiliary voltage will impact the electrical interlock and mechanical interlock. If the interlock mechanism moves upwards, manual operation is not allowed due to the electrical interlock. -
Page 21: Charging The Spring Manually
NXAirS Withdrawable Metal-enclosed Switchgear, Rated Voltage Up to 12kV Operation of NXAirS 13.8 Charging the spring manually When the auxiliary voltage source is switched on, the spring will store energy automatically. Indicator for energy storage of spring will change to indicate “spring with energy” from “spring without energy”... -
Page 22: Feeder Earthing
NXAirS Withdrawable Metal-enclosed Switchgear, Rated Voltage Up to 12kV Operation of NXAirS 13.9 Feeder earthing Preconditions Removable part is in test position. ● Danger! Once the operation is started, it must be finished, because the handle cannot be stopped during the operation nor reverse rotation. Operating handle cannot be taken out in the middle position. -
Page 23: Disconnect The Earthing Of Feeder
NXAirS Withdrawable Metal-enclosed Switchgear, Rated Voltage Up to 12kV Operation of NXAirS √ Indicator for switch status displays "1". Earthing switch is close. Take out the operating handle. Sliding block of operating hole is closed. Lock up the padlock (option). -
Page 24: Cable Channel
NXAirS Withdrawable Metal-enclosed Switchgear, Rated Voltage Up to 12kV Operation of NXAirS Operating procedures Attention! If the operating handle is not inserted correctly, it may result in the damage of earthing switch. Insert the operating handle into the operating hole and push it to limit place. -
Page 25: Inserting Sion Module
NXAirS Withdrawable Metal-enclosed Switchgear, Rated Voltage Up to 12kV Operation of NXAirS Drawing 16. Earthing switch close (grounded) ① When the indicator of earthing switch is light on, the moving contact of earthing switch is in vertical status. ② When the indicator of earthing switch is light off, the moving contact is in horizontal status. -
Page 26: Operation Procedure Of Nxairs Service Truck
NXAirS Withdrawable Metal-enclosed Switchgear, Rated Voltage Up to 12kV Operation of NXAirS 13.13 Operating procedures of NXAIR S service truck （ Please refer to the actual cassette and breaker when they are different from the pictures ） 1. Push VCB into the panel (1) Place the service truck with VCB in front of the panel. (2) Lock poles at both sides of service truck can match with location holes on guide rail through the lifting mechanism, so that lock poles can be inserted into location holes smoothly. - Page 27 NXAirS Withdrawable Metal-enclosed Switchgear, Rated Voltage Up to 12kV Operation of NXAirS (4) Unlock the interlock handle of VCB, push VCB into the panel and lock it. (5) Support to service truck is adjusted downwards slightly through the lifting mechanism.
- Page 28 NXAirS Withdrawable Metal-enclosed Switchgear, Rated Voltage Up to 12kV Operation of NXAirS 2. Take VCB out of the panel (1) Open the front door. (2) Pull out secondary plug and place it on the front door. (3) Lock poles at both sides of service truck can match with location holes on guide rail through the lifting mechanism, so that lock poles can be inserted into location holes smoothly.
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Page 29: Operation Of Shutters
NXAirS Withdrawable Metal-enclosed Switchgear, Rated Voltage Up to 12kV Operation of NXAirS 13.14 Operation of shutters Movable shutters include feeder movable shutter (lower movable shutter) and busbar movable shutter (upper movable shutter).Operating mechanism of feeder movable shutter is located at the right side of the switch panel, and operating mechanism of busbar movable shutter is located at the left side of the switch panel. - Page 30 NXAirS Withdrawable Metal-enclosed Switchgear, Rated Voltage Up to 12kV Operation of NXAirS 13.15 Electrical operation 13.15.1 Electrical operation of the earthing switch Preconditions for the operation Operating procedure The removable part is in test position or outside the cabinet. ● Power off is required on the cable side.
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Page 31: Service
NXAirS Withdrawable Metal-enclosed Switchgear, Rated Voltage Up to 12kV Operation of NXAirS 14. Service 14.1 Maintenance of switch panel Maintenance work for parts in the panel, such as voltage transformer, current transformer, relay, counter and protector, shall be in accordance with the requirements of relative operation manuals. -
Page 32: Maintenance Of Sion
NXAirS Withdrawable Metal-enclosed Switchgear, Rated Voltage Up to 12kV Operation of NXAirS Check the functions of switch panel. After check, put the switch panel into operation again. 14.2 Maintenance of SION Preconditions: Switch off the power supply; ● Circuit breaker is open; ●... -
Page 33: Troubleshooting
NXAirS Withdrawable Metal-enclosed Switchgear, Rated Voltage Up to 12kV Operation of NXAirS HV Door 15. Troubleshooting Faults Causes Measures HV door is locked. Use key to release the lock. The door of HV Removable part is not in test Move the removable part to test compartment cannot open. - Page 34 NXAirS Withdrawable Metal-enclosed Switchgear, Rated Voltage Up to 12kV Operation of NXAirS Earthing Switch Faults Causes Measures Removable part is in working Return the removable part to Sliding block for feeder position. test position. earthing switch cannot open. Operating handle for removable Take out the operating handle.
- Page 35 NXAirS Withdrawable Metal-enclosed Switchgear, Rated Voltage Up to 12kV Operation of NXAirS Possible phenomena in the Phenomenon Cause operation process: 1. The handle is inserted in the cassettee, not taken out yet. Manual operation is available for the 2. Locking conditions of electric cassettee are not met, cassettee but electric operation is for example, position switch is not switched over.
- Page 36 Business Center Meeting Room of Sichuan Changhong Hotel, High Tech Development Zone, Mianyang, Sichuan 028 - 6238 7339 028-62387094 Shanghai Building A, Siemens Center Shanghai, No.500 Dalian Road, Yangpu District, Shanghai, P.R.China 021-3889 3889 Hangzhou Rm.1505,Jiahua International Business Center, No.15 Hangda Road, Hangzhou 310007, P.R.China...
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