Password Protection – 2 levels W Hr forward and reverse User Programmable Logic VAr Hr forward and reverse Self Monitoring Historical demand record Positive phase sequence (PPS) Voltage Negative phase sequence (NPS) Voltage Zero phase sequence (ZPS) Voltage Siemens Protection Devices Limited...
The feature resets thermal capacity. when either the circuit breaker has been closed for a settable period, or if the current has reduced beneath a set level for a user set period. Siemens Protection Devices Limited...
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A slip-in label pocket along-side enables the user to insert his own notation for the function Key LED Identification. Each Function Key can be mapped directly to any of the built-in Command functions or to the User Logic equations. Siemens Protection Devices Limited...
Binary Input from an external Protection. The user can set each trip in the sequence to be either instantaneous (Fast) or delayed. Independent times can be set by the user for Reclose (Dead) time and Reclaim time. Siemens Protection Devices Limited...
Ip = prior current Capacity Alarm Level Disabled, 50,51…100% Number of Elements Inhibited by Binary or Virtual Input Setting Range Is 0.05,0.10…5.0 x In Operate Level 100% Is, ±5% or ±1% xIn Delay Setting td 0.00,0.01…20,20.5…100,101… 1000,1010…10000,10100…….. 14400s Siemens Protection Devices Limited...
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0.005…0.95 xI Operate Level 100% I , ±5% or ±1% xIn Time Delay 0.00… 14400s Basic Operate Time 0 to 2 xI 40ms ±10ms 0 to 5 xI 30ms ±10ms Inhibited by Binary or Virtual Input Siemens Protection Devices Limited...
Case Dimensions Fig 3. E6 Case overall dimensions and panel drilling details (All dimensions in are mm) Fig 4. E8 Case overall dimensions and panel drilling details (All dimensions are in mm) Siemens Protection Devices Limited...
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BI 1 BO 3 BI 2 BO 4 BI 3 BO 5 Screen BO 6 Term. BO 7 BO 8 BI 4 BI 5 BI 6 BI 7 BI 8 BI 9 Fig 5. 7SR210 Wiring Diagram Siemens Protection Devices Limited...
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Contacts close when the relay chassis is withdrawn from case BO 1 GND. BO 2 BI 1 BO 3 BI 2 BO 4 BI 3 BO 5 Screen BO 6 Term. Fig 6. 7SR220 Wiring Diagram Siemens Protection Devices Limited...
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(x4) (x4) CTS- (x2) (x4) (x4) (x2) (x4) (x4) (x2) (x4) (x4) (x2) (x4) (x4) NOTE: The use of some functions are mutually exclusive (x4) (x2) (x6) (x4) (x2) (x4) Optional Fig 8. 7SR220 Function Diagram Siemens Protection Devices Limited...
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Cold load pickup Programmable logic Standard version – plus Autoreclose Additional Functionality No Additional Functionality 4CT is configured as 3PF + EF/SEF (user selectable setting). For ESI48-4 compliance of binary inputs external resistors are required. Siemens Protection Devices Limited...
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Cold load pickup Programmable logic Standard version – plus Autoreclose Additional Functionality No Additional Functionality 5CT is configured as 3PF + EF + SEF/REF (user selectable setting). For ESI48-4 compliance of binary inputs external resistors are required. Siemens Protection Devices Limited...