Installation and Operating Instructions - Crompton Instruments

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TYPE 81O — OVER FREQUENCY Brief details The relay will operate (trip) when the frequency of the “generator” input voltage is greater than the selected value for the duration of the time delay. The relay will return to the “not tripped” condition (provided that latched operation has not been selected) when the “generator” input frequency falls below the selected trip point by at least the hysteresis value. The time delay is not used on the transition to the “not tripped” condition. Parameters You must specify the following parameters for operation of the over frequency relay: ● The maximum permitted frequency input from the “generator”. ● The time for which the over frequency condition must be true. ● The frequency decrease below the previously defined maximum that the input from the “generator” must exceed to return operation to the not tripped condition following a trip. (Hysteresis) Parameter details Range of Frequency Trip point (Trip Point) 40 — 70 Hz Range of Diff (Diff) 0.1 — 10 Hz Range of Time Delay (Time Delay) 0 to 30 seconds NOTE: If the measured frequency exceeds the 70Hz working range, be aware that the displayed frequency will be set to zero <strong>and</strong> the over frequency trip will reset. If it is possible for the frequency in your application to exceed this upper limit, ensure that under frequency trip is configured to pick up the zero frequency value. TYPE 81U — UNDER FREQUENCY Brief details The relay will operate (trip) when the frequency of the “generator” input voltage is less than the selected value for the duration of the time delay. The relay will return to the “not tripped” condition (provided that latched operation has not been selected) when the “generator” input frequency rises above the selected trip point by at least the hysteresis value. The time delay is not used on the transition to the “not tripped” condition. Parameters You must specify the following parameters for operation of ● The minimum permitted frequency input from the “generator”. ● The time for which the under frequency condition must be true. ● The frequency increase above the previously defined minimum that the input from the “generator” must exceed to return operation to the not tripped condition following a trip. (Hysteresis) 66
Parameter details Range of Frequency Trip point (Trip Point) Range of Diff (Diff) Range of Time Delay (Time Delay) 40 — 70 Hz 0.1 — 10 Hz 0 to 30 seconds LOGICAL TRIP FUNCTIONS Parameters You must specify the following parameters for operation of the logical trip functions: ● The logical function type ● The trips (relay numbers) to be included in the logic function (up to three) ● The time delay from the logical condition becoming true to the relay adopting the “tripped” condition ● The time delay from the logical condition becoming false to the relay returning to the “not tripped” condition Parameter details Logic Functions Supported AND Output true when all inputs true OR Output true when any input true NAND Output true except when all inputs true NOR Output true when no inputs are true XOR Output true when odd number of inputs are true Vote Output true when the majority of inputs are true Disc Output true when inputs are different Range of Delay to On Time 0 — 30 Seconds Range of Delay to Off Time 0 — 30 Seconds 67
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Energy Division Installation and Op
Page 3 and 4:
Contents Page COPYRIGHT 6 WARNINGS
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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 and 58: TYPE 51 — AC TIME OVER CURRENT Br
Page 59 and 60: Fig 4 Time - current characteristic
Page 61 and 62: Fig 6 Time - current characteristic
Page 63 and 64: Parameter details Range of Current
Page 65: Parameter details Range of Neutral
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
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