CHINT NWC1 Series User Instruction Download | Manualshive

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Standard:IEC 60831-1-2014
IEC 60831-2-2014

NO:2021.01

NWC1 Series
Self-healing Low Voltage
Shunt Capacitors

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Summary of Contents for NWC1 Series

Page 1: ...Standard IEC 60831 1 2014 IEC 60831 2 2014 NO 2021 01 NWC1 Series Self healing Low Voltage Shunt Capacitors ...

Page 2: ...maintenance 2 Installation in any damp condensed phase environment with inflammable and explosive gas is forbidden 3 When the product is being installed or maintained the power must be switched off 4 You are prohibited from touching the conductive part when the product is operating ...

Page 3: ...ation Commissioning and Operation Main Features Outline and Installation Dimensions Analysis and Troubleshooting of Faults Maintenance and Storage Product Selection and Ordering Information 11 Environmental Protection 01 01 01 02 04 04 06 06 07 08 08 Use Purpose and Application Range Warranty Period Environmental Protection and Law Regulations ...

Page 4: ...wer electronic equipment frequency converter energy saving transformation such as motor speed regulation variable frequency air conditioner etc DC rectifier inverter electrolytic plating equipment electric arc furnace and intermediate frequency furnace etc See Table 1 for capacitor selection and harmonic suppression measures under harmonic environment 3 Conditions for Normal Use Installation and T...

Page 5: ...overvoltage 1 1UN no more than 8h of continuous operation within 24h Maximum allowable overcurrent 1 3IN no more than 2h of continuous operation within 24h Short time 2 0IN Self discharge characteristics Residual voltage drops from 2UN to 75V DC or below within 3min after power off Ambient temperature 25 50 25 C Customizable 40 50 Relative temperature 50 at 40 90 at 20 Altitude m 2000 Tightening t...

Page 6: ... fuse for short circuit protection For capacitors with capacity 30kvar user can use miniature circuit breaker for short circuit protection For capacitors with capacity 30kvar miniature circuit breaker is not recommended RT36 or NT00 NWC1 series square case products consist of fully independent units with automatic protection functions The units use cylindrical stretched aluminum enclosure while th...

Page 7: ...ng lug See Table 6 for the selection of conductor sectional area Figure 5 Capacitor installation drawing Table 5 Installation spacing and safety distance Capacity kvar Minimum installation spacing S1 mm Safety distance at the top of capacitors S2 mm 1 20 30 50 22 32 50 50 35 100 80 50 6 4 Preparation and inspection before use 6 4 1 Before using the capacitor user should check if the model on the n...

Page 8: ...orage 7 1 Daily maintenance and calibration Check if the operating current of the capacitor is normal by using the amperemeter and compensation controller in the cabinet Check if there is any deformation oil leakage and overheating Abnormalities such as overcurrent and overtemperature caused by harmonic will reduce the service life of the capacitor and can cause damage to other components and cond...

Page 9: ...ms are typical when the grid harmonic is too big or there is intermittent resonance in the grid Conduct grid harmonic test or check if there are harmonic sources such as frequent converter rectifier intermediate frequency furnace or electric arc furnace installed at load end See 3 3 2 for harmonic suppression measures 5 Sometimes there is buzzing sound in the cabinet during operation There is harm...

Page 10: ...tment process or be sent to the recycling station for assortment dismantling and recycling according to local regulations In order to protect the environment the product or product parts should be disposed of according to the industrial waste treatment process or be sent to the recycling station for assortment dismantling and recycling according to local regulations 10 1 User should provide produc...

Page 11: ...08 NWC1 Series Self healing Low Voltage Shunt Capacitors DR J03 NWC1 Series Self healing Low Voltage Shunt Capacitors IEC 60831 1 2014 IEC 60831 2 2014 ...

Page 12: ...NWC1 Series Self healing Low Voltage Shunt Capacitors User Instructions ...

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