Installation and Operating Instructions - Crompton Instruments

More documents

Recommendations

Info

Time over current characteristics The response time of the relay when operating in Time Over Current mode may determined using the relationship: Time-Current Characteristic k1 k2 k3 Standard Inverse 0.01414 0.02 0.1 Very Inverse 1.3636 1 0.1 Extremely Inverse 8.0808 2 0.1 Long time standby Earth Fault 12.121 1 0.1 The curves describing these characteristics may be found on the following pages (Figs 4 to 7). Limits of operation The maximum “Multiple of trip setting” applicable for a trip setting at “nominal input” (e.g. Trip point at 5 Amps on a 5 Amp unit) is 5. “Multiple of trip setting” values of greater than 5 are only valid for trip levels of less than “nominal input”. This parameter is limited by the dynamic range of the current input circuits which start to limit above 5 times “nominal” input. The maximum time delay introduced by the Time-Current characteristics is limited by the resolution of the current input in the region of the trip point. This limits the “Multiple of trip setting” to approximately 1.007. 58
Fig 4 Time - current characteristics - Standard Inverse (Time Curve =1) 59
Page 1 and 2:
Energy Division Installation and Op
Page 3 and 4:
Contents Page COPYRIGHT 6 WARNINGS
Page 5 and 6:
Contents (Continued) Page RS485 dig
Page 7 and 8: INTRODUCTION Traditionally, each pr
Page 9 and 10: MOUNTING NOTES The SPR may be mount
Page 11 and 12: THEORY OF OPERATION AND RESPONSE TI
Page 13 and 14: FRONT PANEL CONTROLS There are four
Page 15 and 16: ● POWER METERING - Detailed menu
Page 17 and 18: To change the date and/or the time,
Page 19 and 20: Display Timeout Feature In some app
Page 21 and 22: Viewing the User Screen Select the
Page 23 and 24: SYSTEM CONFIGURATION AND RELAY STAT
Page 25 and 26: Relay status When the SPR is initia
Page 27 and 28: RELAY SETTING EXAMPLES To show how
Page 29 and 30: CAPTION SETTING FOR RELAY CONFIGURA
Page 31 and 32: Fail Safe The default relay operati
Page 33 and 34: Testing Relay 1 Now you are ready t
Page 35 and 36: If Relay 1 is not displayed (it cou
Page 37 and 38: Increase the voltage source again u
Page 39 and 40: Press ENTER to bring up the relay s
Page 41 and 42: Testing Relay 1 Latch function Now
Page 43 and 44: Event Log SPR can record the time d
Page 45 and 46: Logical operators This example demo
Page 47 and 48: To save the configuration changes,
Page 49 and 50: Time Over current Relay The SPR off
Page 51 and 52: PROTECTIVE FUNCTION DETAIL The Rela
Page 53 and 54: There is a relationship between the
Page 55 and 56: TYPE 47 — PHASE ORDER (PHASE SEQU
Page 57: TYPE 51 — AC TIME OVER CURRENT Br
Page 61 and 62: Fig 6 Time - current characteristic
Page 63 and 64: Parameter details Range of Current
Page 65 and 66: Parameter details Range of Neutral
Page 67 and 68: Parameter details Range of Frequenc
Page 73 and 74: Gen Voltage With the cursor on Volt
Page 75 and 76: PASSWORD PROTECTION Introduction Si
Page 77 and 78: Once a password level has successfu
Page 79 and 80: PASSWORD LEVELS Menu Functions / SP
Page 81 and 82: Menu Functions / SPR-014W (3 Phase
Page 83 and 84: The format for each byte in RTU mod
Page 85 and 86: Address Address Parameter 4 Wire 3
Page 87 and 88: Relay Number The value sent to the
Page 89 and 90: PRODUCT SPECIFICATION INPUTS Voltag
Page 91 and 92: REAL TIME CLOCK Accuracy Ageing Res
Page 93 and 94: IEC255-4 (BS EN 60255-4) 3.25 kV pe
Page 95 and 96: Notes
Page 97: Energy Division With 4000 employees
show all

Installation and Operating Instructions - Crompton Instruments

Create successful ePaper yourself

Delete template?

Save as template?