pre charging switch
- 1、下载文档前请自行甄别文档内容的完整性，平台不提供额外的编辑、内容补充、找答案等附加服务。
- 2、"仅部分预览"的文档,不可在线预览部分如存在完整性等问题,可反馈申请退款(可完整预览的文档不适用该条件!)。
- 3、如文档侵犯您的权益，请联系客服反馈,我们会尽快为您处理(人工客服工作时间：9:00-18:30)。
Release notice
Pre-charging switches for inverter
Vacon has released pre-charging switches for the inverters. The pre-charging switch is used for connecting and disconnecting the inverter modules from the live DC bus bar. The pre-charging circuit needs also resistors and fuses to work, see Table 1-1 and 1-2. Fuses for the pre-charging circuit should be selected according pre-charging currents in Table 1-1 and 1-2.
This instruction sheet not provides guidelines on how to connect the pre-charging circuit. Instructions can be found from the inverters User’s Manual.
Order can be placed in VST (Vacon Sales Tools). Type codes for released pre-charging switches are following:
CHAR-SWITCH-INU-FI9-FI10
CHAR-SWITCH-INU-FI12
CARR-SWITCH-INU-FI13
If you need more information or have any questions, please contact your Product Manager.
UNIT Pre-charging components Values
OEVA Resistor Resistance charging
time
charging
current
peak
current
Type Frame
[s] [A] [A] FI9 CHAR-SWITCH-INU-FI9-FI10 2x
CAV335C35R 35ohm 0,558 3,9 7,7 FI10 CHAR-SWITCH-INU-FI9-FI10 2x
CAV335C35R 35ohm 1,115 3,9 7,7 FI12 CHAR-SWITCH-INU-FI12 4x
CAV335C35R 35ohm 1,115 3,9 7,7 FI13 CHAR-SWITCH-INU-FI13 2x
CAV335C11R 11ohm 1,052 12,4 24,5 INU
FI14 2x CHAR-SWITCH-INU-FI13 4x CAV335C11R 11ohm 1,052 12,4 24,5 Table 1-1. Pre-charging components for 380-500VAC inverter units
UNIT Pre-charging components Values
OEVA Resistor Resistance charging
time
charging
current
peak
current
Type Frame
[s] [A] [A] FI9 CHAR-SWITCH-INU-FI9-FI10 2x
CAV335C47R 47ohm 0,565 5,0 9,9 FI10 CHAR-SWITCH-INU-FI9-FI10 2x
CAV335C47R 47ohm 1,130 5,0 9,9 FI12 CHAR-SWITCH-INU-FI12 4x
CAV335C47R 47ohm 1,130 5,0 9,9 FI13 CHAR-SWITCH-INU-FI13 2x
CAV335C20R 20ohm 1,442 11,7 23,3 INU
FI14 2x CHAR-SWITCH-INU-FI13 4x CAV335C20R 20ohm 1,442 11,7 23,3 Table 1-2. Charging components for 525-690VAC inverter units。