isv3o_1.bk : isv3o_fc.frm Page 1 Wednesday, August 7, 1996 10:51 AM ISGS TM Intelligent SwitchGear System Operators Manualfirmware version V3 Manual No.
isv3o_1.bk : isv3o_fc.frm Page 2 Wednesday, August 7, 1996 10:51 AM IMPORTANT The information contained herein is general in nature and not intended for specific application purposes. It does not relieve the user of responsibility to use sound practices in application, installation, operation, and maintenance of the equipment purchased. Siemens reserves the right to make changes at any time without notice or obligations.
isv3o_1.bk : isv30toc.frm Page 1 Wednesday, August 7, 1996 10:51 AM Table of Contents Siemens Energy & Automation, Inc.
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isv3o_1.bk : isv3o_1.toc Page i Wednesday, August 7, 1996 10:51 AM Table of Contents 1 2 Introduction ...............................................1 Phase Time Overcurrent (51)...........................23 5.7 Neutral Time Overcurrent (51N) ......................23 Product Description .......................................... 2 5.8 1.3.1 1.3.2 Blocking Capability for Breaker or Interrupter Saving............................................24 5.9 Directional Phase Time Overcurrent (67)........
isv3o_1.bk : isv3o_1.toc Page ii Wednesday, August 7, 1996 10:51 AM Table of Contents 7 Data Acquisition (cont.) 7.4 Metered Data ..................................................46 7.4.1 7.4.2 7.4.3 7.4.4 8 Current Values .....................................46 Voltage Values .....................................46 Power Values.......................................46 Frequency Values ................................46 7.5 Meter Display ..................................................47 7.
isv3o_1.bk : isv3oint.frm Page 1 Wednesday, August 7, 1996 10:51 AM Introduction 1 Introduction 1.2 Safety The Intelligent SwitchGear System (ISGS) from Siemens is a high-speed, numerical, microprocessor-based protective relay designed to be easily incorporated into a computermonitored medium voltage power system. The relay is designed and manufactured in accordance with the latest provisions of the applicable IEEE, ANSI, and NEMA standards.
isv3o_1.bk : isv3oint.frm Page 2 Wednesday, August 7, 1996 10:51 AM 1 Introduction Signal Words The signal words Danger, Warning, and Caution used in this manual indicate the degree of hazard that the user or operator can encounter.
isv3o_1.bk : isv3oint.frm Page 3 Wednesday, August 7, 1996 10:51 AM Introduction 1.3.2 Optional Configurations The ISGS relay is a dynamic, feature-rich device that can be used in numerous industrial and utility applications. It allows the addition of options or configuration changes at any time without discarding the basic hardware.
isv3o_1.bk : isv3oint.frm Page 4 Wednesday, August 7, 1996 10:51 AM 1 Introduction 1.5 Technical Specifications Trip Circuit (continued) Binary output contacts (BO1 and BO2) Applicable Standards ANSI / IEEE C37.
isv3o_1.bk : isv3oins.frm Page 5 Wednesday, August 7, 1996 10:51 AM Installation 2 Installation 2.3 Mounting This chapter explains the installation of the ISGS relay and includes procedures for unpacking, storing, mounting, and wiring the relay. Prior to installation, ensure that the system power is off and that you have all required tools and test equipment available. The ISGS relay is typically installed in a switchgear unit or relay panel.
isv3o_1.bk : isv3oins.frm Page 6 Wednesday, August 7, 1996 10:51 AM Installation Use toothed washers to ensure solid metal contact through paint of cover and panel Top 19 20 Case ground, #12 or braided cable to good cubicle ground, as short as possible BI1A BI1B BI2A BI2B BI3A BI3B BI4A BI4B Trip 3A Trip 3B 17 18 15 16 13 14 41 42 43 44 45 46 47 48 49 50 21 22 23 24 25 26 27 28 29 30 Trip 2 Power Input - Power Input + BI B Switch BI Trip Wire as described in Section 2.4.
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isv3o_1.bk : isv3oins.frm Page 8 Wednesday, August 7, 1996 10:51 AM Installation 2 2.5 Communications 2.6 Cradle Assembly The ISGS relay must be connected to a host computer in order for it to communicate with other devices. The relay supports both RS-232 and RS-485 (optional) data interfaces. The use of either of these data interfaces will allow the same level of access to the system as the front panel keypad, but configuration through communications does not require a password.
isv3o_1.bk : isv3ousr.frm Page 9 Wednesday, August 7, 1996 10:51 AM User Interface 3 User Interface . Operation, parameter selection, and control of the ISGS relay are performed using the front panel controls and indicators. They consist of a 26-key membrane keypad, a 2-line by 16-character liquid crystal display (LCD), three light-emitting diodes (LEDs), and the front port. Key Name Function Password Accesses the password function, which is required for programming relay settings.
isv3o_1.bk : isv3ousr.frm Page 10 Wednesday, August 7, 1996 10:51 AM User Interface The Trip LED is illuminated until the Target Reset key is depressed. Reset the Trip LED by momentarily depressing the Target Reset key. 3 Note: If the Trip LED is on and power is removed, it will still be set to on when power is restored. 3.2.2 LCD The two-line by sixteen-character LCD allows the viewing of parameters, measured data, and keypad entries.
isv3o_1.bk : isv3ousr.frm Page 11 Wednesday, August 7, 1996 10:51 AM User Interface 3.4 Menu The ISGS relay menu (or memory map) is organized in a hierarchical structure that is made up of address blocks and addresses. The first level consists of address blocks. Each address block represents one complete function or two related functions and is identified by a unique four-digit number ending in two zeros (for example, 1500). Refer to Figure 3.1.
isv3o_1.bk : isv3ousr.frm Page 12 Wednesday, August 7, 1996 10:51 AM User Interface Displaying function names (address blocks), parameter names and their settings or values (addresses), and subparameter settings (subaddress, where applicable), does not require a password (except for viewing the password itself). Data can be displayed by following steps 1 to 3 of the standard operating procedures described in Table 3.1.
isv3o_1.bk : isv3ousr.frm Page 13 Wednesday, August 7, 1996 10:51 AM User Interface Table 3.1 Standard Operating Procedures Step Task Description Display Data 1 2 Display data at Address Block (xx00) Display data at Address (xxxx) 3 Use Double Arrow keys to scroll forward or backward between address blocks. OR Press Direct Addr key; enter address of desired address block using the numeric keypad; press Enter key. To view passwords, carry out step 4 before continuing with the next step.
isv3o_1.bk : isv3ousr.frm Page 14 Wednesday, August 7, 1996 10:51 AM Notes: 3 14 Siemens Energy & Automation, Inc.
isv3o_1.bk : isv3ohw.frm Page 15 Wednesday, August 7, 1996 10:51 AM Hardware Configuration 4 Hardware Configuration This chapter explains the device startup and how to configure the basic ISGS relay parameters. The relay must be configured with certain system parameters, such as phase sequence and frequency. In addition, information regarding the manner in which the ISGS relay is connected in the installation must be configured. All parameter changes require a password. Refer to Section 3.
isv3o_1.bk : isv3ohw.frm Page 16 Wednesday, August 7, 1996 10:51 AM Hardware Configuration 4.3 Setting Binary Input Voltages The Device Configuration function allows you to set up the ISGS relay to match line frequency, phase sequence, and breaker connection settings of your system. Binary inputs are jumpered to correspond to the auxiliary supply voltage of the relay in which they are installed. The inputs will correctly respond to DC or AC depending on the jumpering.
isv3o_1.bk : isv3ohw.frm Page 17 Wednesday, August 7, 1996 10:51 AM Hardware Configuration .22 163 .22 163 .22 163 350 350 350 350 Figure 4.5 shows option board 2 and its jumpers. The drawing indicates the jumpers associated with each binary input. The enlarged set of pins shows an example of pin labeling and a jumper at location X17-X18. Changing Jumper Positions IMPORTANT: The relay module contains CAMS circuits.
isv3o_1.bk : isv3ohw.frm Page 18 Wednesday, August 7, 1996 10:51 AM Hardware Configuration 4.4 CT Configuration Main Bus The CT Configuration function allows you to set up the ISGS relay to match the phase CT primary rating, the neutral or ground CT primary rating, and the CT inputs normal power flow setting of your system. For CT connections refer to Figure 4.8. ISGS ISGS Power Power 4 Normal Power Flow (Into CT Polarity Mark) Reverse Power Flow (Out of CT Polarity Mark) Figure 4.
isv3o_1.bk : isv3ohw.frm Page 19 Wednesday, August 7, 1996 10:51 AM Hardware Configuration 1200 VT Configuration Address Parameter 1 2 3 Options 1201 Primary Rating 120-138,000 V (1 V steps) 1202 VT Connect Line-to-Line or Line-to-Neutral 1203 Sec.
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isv3o_1.bk : isv3opro.frm Page 21 Wednesday, August 7, 1996 10:51 AM Protective Function Configuration 5 Protective Function Configuration 5.1 Overview This chapter explains how to set the parameters for the protective functions of the ISGS relay. Password All parameter changes require a password. Refer to Section 3.3 on how to enter your password. Viewing parameter settings does not require a password. Note: The ISGS relay is not password protected when making parameter changes through Wisdom software.
isv3o_1.bk : isv3opro.frm Page 22 Wednesday, August 7, 1996 10:51 AM Protective Function Configuration 5.3 High-Set Instantaneous Phase Overcurrent (50HS) The High-Set Instantaneous Phase Overcurrent function causes an undelayed trip when any individual measured phase current exceeds the preprogrammed threshold (pickup value). The relay will trip at 100% of the set pickup point.
isv3o_1.bk : isv3opro.frm Page 23 Wednesday, August 7, 1996 10:51 AM Protective Function Configuration 5.6 Phase Time Overcurrent (51) The Phase Time Overcurrent function uses a selected time overcurrent characteristic curve to determine the trip time for the applied phase currents. The defined characteristic curves are valid over a range of multiple of pickup values. The function also includes the ability to select a customer defined curve. This function is always enabled.
isv3o_1.bk : isv3opro.frm Page 24 Wednesday, August 7, 1996 10:51 AM Protective Function Configuration protective curve that integrates with instantaneous reset. The lower limit of the custom curve is 1.10. The maximum time to trip is the time at 1.10. The range of the pickup value (1803) depends on the secondary phase CT rating (1 A or 5 A) and the value is in secondary amperes. The Time Dial parameter (1805) used for the selected curve allows the time-to-trip of the curve to be raised or lowered.
isv3o_1.bk : isv3opro.frm Page 25 Wednesday, August 7, 1996 10:51 AM Protective Function Configuration The Directional Phase Time Overcurrent function can be enabled or disabled (1901). The Curve parameter (1902) allows the selection of the preprogrammed characteristic curve used by this function. The ISGS relay comes with nine standard overcurrent characteristic curves that can be adjusted with the Time Dial parameter.
isv3o_1.bk : isv3opro.frm Page 26 Wednesday, August 7, 1996 10:51 AM Protective Function Configuration The range of the pickup value (2003) depends on the secondary phase neutral CT rating (1 A or 5 A) and the value is in secondary amperes. The function begins timing when any individual neutral current exceeds the pickup current setting. Note: The pickup point is 1.06 of the pickup setting. Refer also to paragraph on Pickup in Section 5.1.
isv3o_1.bk : isv3opro.frm Page 27 Wednesday, August 7, 1996 10:51 AM Protective Function Configuration The Undervoltage function can be enabled or disabled (2301). The 47 Phase Sequence Voltage function can be enabled or disabled (2401). The Curve parameter (2302) allows the selection of a definite time delay or a characteristic curve. When the definite time characteristic is selected, the time delay begins as soon as the device goes into pickup.
isv3o_1.bk : isv3opro.frm Page 28 Wednesday, August 7, 1996 10:51 AM Protective Function Configuration When the curve is set to inverse, the Max Time parameter (2456) sets an absolute maximum amount of time that the function will remain in pickup regardless of the inverse curve. The value ranges from 1 to 250 seconds and can be set in steps of 1 second. Blocking (2457) can be set from 40 to 120 V. Regardless of the setting, the function is automatically blocked if the voltage drops below 40 V.
isv3o_1.bk : isv3opro.frm Page 29 Wednesday, August 7, 1996 10:51 AM Protective Function Configuration 2800 50BF Breaker Failure Address Parameter Option 2801 Function Enabled or Disabled 2802 Pickup 5 A CTs: 0.25-5 A 1 A CTs: 0.05-1 A (0.01 A steps) 2804 Delay 8-254 cycles 2805 Check current, breaker opened, current or breaker opened The 50BF Breaker Failure function can be enabled and disabled (2801).
isv3o_1.bk : isv3opro.frm Page 30 Wednesday, August 7, 1996 10:51 AM Protective Function Configuration Demand calculations are made every subperiod (3103, 3104, or 3105). The number of subperiods depends on the length of the demand interval and is based on 10, the minimum number of monitoring intervals in a subperiod. For example, a 15 minute interval can have one or three subperiods, a 30 minute interval can have 1, 2, 3, or 6 subperiods.
isv3o_1.bk : isv3oc&c.frm Page 31 Wednesday, August 7, 1996 10:51 AM Control & Communications 6 Control & Communications 6.1 Matrixing Events to Outputs One of the powerful functions of the ISGS relay is its ability to send control outputs based on inputs from the real world. This process of assigning various outputs to various inputs is called matrixing. Utilities in Europe call this marshalling.
isv3o_1.bk : isv3oc&c.frm Page 32 Wednesday, August 7, 1996 10:51 AM Control & Communications Matrixing Procedure The following steps provide a detailed description on how to matrix the ISGS relay manually using the front panel LCD and keypad. Before matrixing the relay, ensure that power is applied to the relay which is indicated by the lit system LED (green). Table 6.
isv3o_1.bk : isv3oc&c.frm Page 33 Wednesday, August 7, 1996 10:51 AM Control & Communications 6.2 Binary Inputs 6.3 Binary Outputs Binary inputs are optically-isolated voltage level sensors with a fixed threshold. The input is considered activated if voltage above the threshold is applied and de-activated if no voltage or voltage below the threshold is applied. The ISGS relay offers two binary outputs. The options at each matrix position are displayed in the sequence listed in the table below.
isv3o_1.bk : isv3oc&c.frm Page 34 Wednesday, August 7, 1996 10:51 AM Control & Communications 6.4 Trip Contacts 6.6 Breaker Monitoring The ISGS relay offers up to three trip contacts which are monitored by the microprocessor. Trip contacts may be configured by the user to trip the relay based on any of a number of functions. Trip contact reaction time is about 4.5 ms. To increase the security of the protective system, it is helpful to monitor several parameters directly from the switchgear.
isv3o_1.bk : isv3oc&c.frm Page 35 Wednesday, August 7, 1996 10:51 AM Control & Communications The Trip Source Impedance parameter (8301) can be enabled or disabled. When enabled, the circuit periodically monitors the trip supply voltage (auxiliary voltage, station battery) and will perform an action (for example, close a binary output) should the voltage drop below ANSI minimum values.
isv3o_1.bk : isv3oc&c.frm Page 36 Wednesday, August 7, 1996 10:51 AM Control & Communications 6.8 Breaker Operations Count Breaker Operations refers to the number of times the device has opened the breaker. The Breaker Operation function allows the setting of the breaker monitoring parameters. The Sum of Interrupted Current is the total sum of the currents that were interrupted by these breaker openings. The setpoint is triggered when any phase exceeds the set limit.
isv3o_1.bk : isv3oc&c.frm Page 37 Wednesday, August 7, 1996 10:51 AM Control & Communications Binary Outputs (7409) displays the output contact status as illustrated in Figure 6.3. The status updates automatically as they change. V > 25 V AND V < 0.33 V 1 2 1 AND I < 0.167 I OR I < 0.
isv3o_1.bk : isv3oc&c.frm Page 38 Wednesday, August 7, 1996 10:51 AM Control & Communications ∑ 6 Figure 6.5 Current Sum Threshold Figure 6.4 Voltage Balance Threshold Monitoring is done when the maximum voltage is larger than the voltage balance pickup value. The voltage is considered balanced and will not cause an alarm if the voltage min/max ratio is larger than the voltage balance factor.
isv3o_1.bk : isv3oc&c.frm Page 39 Wednesday, August 7, 1996 10:51 AM Control & Communications 6.11 Parameter Sets The ISGS relay can be programmed to operate with either of two parameter setsset A or set B. Separate parameter sets are programmed to satisfy separate user defined conditions, such as seasonal considerations or special operating periods.
isv3o_1.bk : isv3oc&c.frm Page 40 Wednesday, August 7, 1996 10:51 AM Control & Communications and, therefore, apply to both sets. Examples are protective function enable settings and matrixed output contacts such as waveform buffers and blocking. All parameter set functions require a password. 6.11.1 Active Set The active parameter set refers to the parameter set that is currently used by the ISGS relayset A or set B.
isv3o_1.bk : isv3oc&c.frm Page 41 Wednesday, August 7, 1996 10:51 AM Control & Communications 6.12 Communications Port The Configure Communications Port function lets the user change the communications parameters for the ISGS relay.
isv3o_1.bk : isv3oc&c.frm Page 42 Wednesday, August 7, 1996 10:51 AM Notes: 6 42 Siemens Energy & Automation, Inc.
isv3o_1.bk : isv3odaq.frm Page 43 Wednesday, August 7, 1996 10:51 AM Data Acquisition 7 Data Acquisition The ISGS relay provides several forms of data acquisition and display to give the user the most comprehensive picture of the power system. This data includes: event log for monitoring functions and status changes trip logs, including date and time of trip minimum/maximum logs for storing metering data individual metering data waveform captures 7.
isv3o_1.bk : isv3odaq.frm Page 44 Wednesday, August 7, 1996 10:51 AM Data Acquisition For each log the following applies: 7.3 Min/Max Logs 7.3.1 The pickup time (002) consists of the date and time of the event to the nearest millisecond. The pickup parameter (003) refers to the protective function that caused the trip. Only protective function trips are stored in the log (no breaker monitoring, setpoints, or communications trips are logged).
isv3o_1.bk : isv3odaq.frm Page 45 Wednesday, August 7, 1996 10:51 AM Data Acquisition 7.3.2 Voltage Minimum/Maximum Log The Voltage Minimum/Maximum Log function allows the display of minimum and maximum values measured by the relay. The collected information is compared against previously stored values and the log is updated. All logged values are time stamped and resetting the log (see Section 6.7) will reset all log values. No voltages are metered unless the VT option is installed.
isv3o_1.bk : isv3odaq.frm Page 46 Wednesday, August 7, 1996 10:51 AM Data Acquisition 7.4 Metered Data Metered data is stored by the ISGS relay and can be displayed by accessing address blocks 4100 to 4900. The display of this data does not require a password. You can display the same data more conveniently by using Wisdom software described in Chapter 8. 7.4.
isv3o_1.bk : isv3odaq.frm Page 47 Wednesday, August 7, 1996 10:51 AM Data Acquisition 7.5 Meter Display The Operating Parameters function allows the user to determine what appears in Line 1 and Line 2 of the Power On Meter display described in Chapter 4.
isv3o_1.bk : isv3odaq.frm Page 48 Wednesday, August 7, 1996 10:51 AM Notes: 7 48 Siemens Energy & Automation, Inc.
isv3o_1.bk : isv3owis.frm Page 49 Wednesday, August 7, 1996 10:51 AM 8 ISGS Wisdom Software 8 ISGS Wisdom Software 8.1 Overview The ISGS relay is an extremely advanced protective relay for medium voltage switchgear applications. In order to reduce the complexity of configuring the relay, reading the metered values, and retrieving stored data, Siemens developed ISGS Wisdom software. Wisdom software is a Windows-based tool that monitors and controls an ISGS relay.
isv3o_1.bk : isv3owis.frm Page 50 Wednesday, August 7, 1996 10:51 AM 8 ISGS Wisdom Software Configure Menu The Configure menu provides an easy way to set the parameters for the following areas: Communications Protection Functions Breaker Monitoring ISGS Hardware Demand Alarms Value Supervision I/O Setup Passwords Each function or task offers an individual window with an overview of the complete set of parameters available and their default or user-defined settings.
isv3o_1.bk : isv3owis.frm Page 51 Wednesday, August 7, 1996 10:51 AM 8 ISGS Wisdom Software The Marshalling display provides an overview of all trip and binary input settings. Refer to Figure 8.6. Figure 8.8 Min/Max Log Data Display Figure 8.6 Marshalling Display Logs Menu The Logs menu allows a complete data display of the Trip Logs and the Min/Max Log at one glance (see Figure 8.7 and Figure 8.8. This menu also contains the commands for saving or re-reading the Event Log.
isv3o_1.bk : isv3owis.frm Page 52 Wednesday, August 7, 1996 10:51 AM Notes: 8 52 Siemens Energy & Automation, Inc.
isv3o_1.bk : isv3ocrv.frm Page 53 Wednesday, August 7, 1996 10:51 AM Appendix A: Trip Curves & Equations A Trip Curves & Equations This section provides equations and curve characteristics for current and voltage to show the relationship between trip time and threshold levels. Determine which curve closely follows the requirements of your system and select this curve in the applicable protective functions. Trip Characteristic i For ----- > 1 : ip A.
isv3o_1.bk : isv3ocrv.frm Page 54 Wednesday, August 7, 1996 10:51 AM Appendix A: Trip Curves & Equations 100 1 9.9 7.0 10 Time to Trip (Seconds) Time to Trip (Seconds) 10 Time Dial Time Dial 100 9.9 7.0 5.0 1 3.0 1.5 5.0 3.0 0.1 1.5 0.5 0.1 0.5 0.1 0.1 0.01 0.01 1 10 50 1 10 Multiples of Pickup Figure A.3 Short Inverse Curve (SEA2) A 50 Multiples of Pickup Figure A.5 Moderately Inverse Curve (SEA4) 1000 1000 7.0 5.0 10 3.0 1.
isv3o_1.bk : isv3ocrv.frm Page 55 Wednesday, August 7, 1996 10:51 AM Appendix A: Trip Curves & Equations A.3 Definite Inverse Equation 1000 Equation A.2 The ISGS provides an emulation of the popular CO-6 Definite Inverse characteristic. This curve is defined by the equations shown in Equation A.3. 100 i For ----- > 1.5 ip 10 Time Dial Time to Trip (Seconds) Trip Characteristic 1 9.9 7.0 5.0 3.0 0.1 1.5 6.33D + 0.
isv3o_1.bk : isv3ocrv.frm Page 56 Wednesday, August 7, 1996 10:51 AM Appendix A: Trip Curves & Equations 100 1000 7.0 5.0 1 3.0 10 Time Dial Time to Trip (Seconds) 9.9 Time to Trip (Seconds) Time Dial 100 10 9.9 1 7.0 1.5 5.0 3.0 0.5 0.1 1.5 0.1 0.5 0.1 0.1 0.01 0.01 1 10 50 Multiples of Pickup A 1 10 50 Multiples of Pickup Figure A.9 Definite Inverse Curve (SEA8) Figure A.10 I-Squared-T Curve A.4 I-Squared-T Curve A.
isv3o_1.bk : isv3ocrv.frm Page 57 Wednesday, August 7, 1996 10:51 AM Appendix A: Trip Curves & Equations Over/Undervoltage Coefficients Des. A1 B1 1000 tr N1 Inverse 0.51 -1.75 0.50 --- Mod. Inverse 0.51 -0.45 0.50 --- Very Inverse 0.51 1.75 0.50 --- The A, B, and N coefficients are for the standard relay formula Table A.2 Under/Overvoltage Coefficients v For1.01 ≤ ----v ≤ 1.5 : AD T = ------------------------- + BD v N ---vp – 1 p v For v----- > 1.
isv3o_1.bk : isv3oxmt.frm Page 58 Wednesday, August 7, 1996 10:51 AM Appendix B: Metering B Metering B.1 Accuracy Table B.1 Metering Accuracies B Parameter Range Accuracy rms Current (L & G) 0-250% In Displayed in Amperes ±1% of measurement from 50-125% of In ±0.5% of In from 10- 50% of In Average rms Current 0-250% In Displayed in Amperes ±1% of measurement from 50-125% of In ±0.5% of In from 10-50% of In Ampere Demand per Phase 0..
isv3o_1.bk : isv3oxmt.frm Page 59 Wednesday, August 7, 1996 10:51 AM Appendix B: Metering B.
isv3o_1.bk : isv3omen.frm Page 60 Wednesday, August 7, 1996 10:51 AM Appendix C: Menu Structure C Menu Structure Block The following table provides a complete list of addresses and parameters available to the ISGS in its standard and optional configuration. Functions that set the device, the CTs, or the VTs, or functions that require a change in the matrix are indicated by and asterisk (*) next to the address. Observe the warning label below when changing the settings of these functions.
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isv3o_1.bk : isv3otst.frm Page 63 Wednesday, August 7, 1996 10:51 AM Appendix D: Acceptance Test Procedures D Acceptance Test Procedures When performing the acceptance tests, follow the sequence listed here; first test protective function 51, then 50, etc.) Note: The following procedures should be performed using accurately calibrated test equipment connected to a source free of harmonics. Refer to Figure D.1 for connection diagram.
isv3o_1.bk : isv3otst.frm Page 64 Wednesday, August 7, 1996 10:51 AM Appendix D: Acceptance Test Procedures Phase Time Overcurrent (51) Function ISGS Acceptance Test (continued) Phase A B C 6. Relay times out per Table D.1. Trip LED illuminates. Timer stops as Trip 1 contacts close. Trip log indicates trip current value and time in pickup. Wisdom software records trip on overcurrent. Return current to zero and reset timer. 7. Remove control power from relay for five seconds, then restore it.
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isv3o_1.bk : isv3otst.frm Page 66 Wednesday, August 7, 1996 10:51 AM Appendix D: Acceptance Test Procedures ISGS Acceptance Test (continued) Neutral Time Overcurrent (51N) Function Phase N 6. Relay times out per Table D.2. Trip LED illuminates. Timer stops as Trip 1 contacts close. Trip log indicates trip current value and time in pickup. Wisdom software records trip on overcurrent. Return current to zero and reset timer. 7. Remove control power from relay for five seconds, then restore it.
isv3o_1.bk : isv3otst.frm Page 67 Wednesday, August 7, 1996 10:51 AM Appendix D: Acceptance Test Procedures ISGS Acceptance Test Instantaneous Phase Overcurrent (50) Function Set the ISGS as follows: Parameter Set A 5000:5 Current Transformer (CT) Curve SEA 5, Very Inverse 20 A Nominal Pickup Time Dial 9.9 Instantaneous Pickup 1 A Instantaneous Time Delay 0.0 Trip Matrixed to Trip 1 Contact 7103 1102 1702 1703 1705 1501, 1502, 1503 1504 6401 Phase A B C Connections 1.
isv3o_1.bk : isv3otst.frm Page 68 Wednesday, August 7, 1996 10:51 AM Appendix D: Acceptance Test Procedures ISGS Acceptance Test Set the ISGS as follows: Parameter Set A Voltage Primary Rating 120 V Connection Line to Neutral Enable Function Time Characteristic: Inverse Time Trip on Line to Neutral Pickup Level 100 V Time Dial 5.0 Trip Matrixed to Trip 1 Contact Phase A B C Undervoltage (27) Function 7103 1201 1202 2301 2302 2303 2304 2306 6401 Connections 1.
isv3o_1.bk : isv3otst.frm Page 69 Wednesday, August 7, 1996 10:51 AM Appendix D: Acceptance Test Procedures ISGS Acceptance Test (continued) Phase A B C Undervoltage (27) Function Timing 7. Set voltage per Table D.3. Pickup LED illuminates. Display shows PICKUP 27 P1 (2, 3). Wisdom software records pickup in event log. 8. Relay times out per Table D.3. Trip LED illuminates. Timer stops as Trip 1 contacts close. Trip log indicates trip voltage value and time in pickup.
isv3o_1.bk : isv3otst.frm Page 70 Wednesday, August 7, 1996 10:51 AM Appendix D: Acceptance Test Procedures ISGS Acceptance Test Set the ISGS as follows: Parameter Set A Voltage Primary Rating 120 V Connection Line to Neutral Enable Function Time Characteristic: Inverse Time Trip on Line to Neutral Pickup Level 100 V Time Dial per Table Trip Matrixed to Trip 1 Contact Phase A B C Overvoltage (59) Function 7103 1201 1202 2201 2202 2203 2204 2206 6401 Connections 1.
isv3o_1.bk : isv3otst.frm Page 71 Wednesday, August 7, 1996 10:51 AM Appendix D: Acceptance Test Procedures ISGS Acceptance Test (continued) Phase A B C Overvoltage (59) Function Timing 7. Set voltage per Table D.4. Pickup LED illuminates. Display shows PICKUP 59 P1 (2, 3). Wisdom software records pickup in event log. 8. Relay times out per Table D.4. Trip LED illuminates. Timer stops as Trip 1 contacts close. Trip log indicates trip voltage value and time in pickup.
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isv3o_1.bk : isv3otst.frm Page 73 Wednesday, August 7, 1996 10:51 AM Appendix D: Acceptance Test Procedures ISGS Acceptance Test Directional Phase Time Overcurrent (67) Function (Phase-Neutral Connected VTs) (continued) Phase A B C Pickup LED illuminates. Wisdom software records pickup in event log. Return current to zero and reset timer. Timing 5. Apply appropriate value of current in reverse direction for the test. The results match Table D.5. Pickup LED illuminates.
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isv3o_1.bk : isv3otst.frm Page 75 Wednesday, August 7, 1996 10:51 AM Appendix D: Acceptance Test Procedures ISGS Acceptance Test Directional Phase Time Overcurrent (67) Function (Phase-Phase Connected VTs) (continued) Phase A B C -increase phase A current in the reverse direction until relay picks up. This should occur at 1.06 x pickup, for example, 1.06 A ∠ 210 to phase A and 1.06 A ∠ 30 to phase B, or 1.06 A ∠ 90 to phase B and 1.06 A ∠ 270 to phase C, or 1.06 A ∠ 330 to phase C and 1.
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isv3o_1.bk : isv3otst.frm Page 77 Wednesday, August 7, 1996 10:51 AM Appendix D: Acceptance Test Procedures ISGS Acceptance Test Directional Neutral Time Overcurrent (67N) Function (continued) (Only Available with Phase-Neutral Connected VTs) Phase N -increase phase A current in the reverse direction until relay picks up. This should occur at 1.06 x pickup, for example, 1.06 A ∠ 180 to phase A, 1.06 A ∠ 60 to phase B, 1.06 A ∠ 300 to phase C. Pickup LED illuminates.
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Siemens Energy & Automation, Inc.
isv3o_1.bk : isv3osch.frm Page 80 Wednesday, August 7, 1996 10:51 AM Appendix E: Schematics E.2 AC (Capacitor) Trip Systems The following diagram illustrates a typical connection scheme for the ISGS relay when using an AC trip system.
isv3o_1.bk : isv3o_cf.frm Page 1 Wednesday, August 7, 1996 10:51 AM ISGS Settings Worksheet for Date: This ISGS settings worksheet allows easy recording of the desired ISGS parameter settings when configuring the device manually with the keypad controls. Functions and parameters are listed in numerical sequence of their address blocks and addresses just as they appear on the LCD. Where applicable, value ranges and resolution are provided for easy reference.
isv3o_1.bk : isv3o_cf.frm Page 2 Wednesday, August 7, 1996 10:51 AM ISGS Settings Worksheet for A1500 A1502 Pickup 50 Enabled Disabled 5 A CT 1.0 A Range: 1-120 A (0.1 A steps) A 1 A CT 0.2 A Range: 0.2-24 A (0.1 A steps) A 0.00 s Range: 0-60 s (0.
isv3o_1.bk : isv3o_cf.frm Page 3 Wednesday, August 7, 1996 10:51 AM ISGS Settings Worksheet for Date: Set A A1700 Phase Time Overcurrent (51) A1702 Curve 51 Moderately Inverse Inverse Short Inverse Long Inverse Custom Very Inverse Extremely Inverse Definite Inverse Slightly Inverse I2T without Limit 0.5 A Range: 0.5-20 A (0.1 A steps) A 0.1 A Range: 0.1-4 A (0.1 A steps) A A1705 Time Dial 51 0.1 Range: 0.1-9.9 (0.
isv3o_1.bk : isv3o_cf.frm Page 4 Wednesday, August 7, 1996 10:51 AM ISGS Settings Worksheet for Date: Set A A1900 Directional Phase Time Overcurrent (67) A1901 Function 67 Enabled A1902 Curve 67 Inverse Short Inverse Long Inverse Custom Very Inverse Extremely Inverse Definite Inverse Slightly Inverse I2T without Limit 5 A CT 0.5 A Range: 0.5-20 A (0.1 A steps) A 1 A CT 0.1 A Range: 0.1-4 A (0.1 A steps) A A1905 Time Dial 67 0.10 Range: 0.1-9.9 (0.
isv3o_1.bk : isv3o_cf.frm Page 5 Wednesday, August 7, 1996 10:51 AM ISGS Settings Worksheet for Date: Set A A2200 Overvoltage (59) A2201 Function 59 Enabled A2202 Curve 59 Inverse A2203 Pickup Source Voltage 59 (if VT mode is (L-N) Disabled Moderately Inverse Line-to-Line Very Inverse Definite Inverse Line-to-Neutral A2204 Pickup 59 130 V Range: 60-250 V (0.1 V steps) V A2205 Time Delay 59 (Definite) 0.10 s Range: 0-60 s (0.01 s steps), or ∞ s A2206 Time Dial 59 (Inverse) 0.
isv3o_1.bk : isv3o_cf.frm Page 6 Wednesday, August 7, 1996 10:51 AM ISGS Settings Worksheet for A2400 Date: Set A Phase Sequence Voltage (47) Negative Sequence Voltage (47N) A2401 Function 47 Enabled Disabled 2410 Freeze Waveform 1 47 --- on Trip None 2411 Freeze Waveform 2 47 --- on Trip None A2451 Function 47N Enabled Disabled A2452 Curve 47N Inverse Definite Inverse A2453 Pickup 47N 10% Range: 4-40% (1% steps) A2454 Time Delay 47N(Defin.) 0.00 s Range: 0-100 s (0.
isv3o_1.bk : isv3o_cf.frm Page 7 Wednesday, August 7, 1996 10:51 AM ISGS Settings Worksheet for A2500 Date: Set A Overfrequency (81O) Underfrequency (81U) A2501 Function 81O Enabled Disabled A2502 Pickup 81O 62.0 Hz Range: 60.1-65.0 Hz (0.1 Hz steps) A2504 Time Delay 81O 0.10 s Range: 0-100 s (0.01 s steps), or ∞ s 2506 Block 81O 40 V Range: 40-120 V (1 V steps) V 2510 Frz. Wfm1 81O on Pickup on Trip None 2511 Frz.
isv3o_1.bk : isv3o_cf.
isv3o_1.bk : isv3o_cf.frm Page 9 Wednesday, August 7, 1996 10:51 AM ISGS Settings Worksheet for Date: Set A 3400 Value Supervision 3401 Voltage Balance Function Enabled 3402 Voltage Balance Pickup 100 V Range: 40-120 V (0.1 V steps) 3404 Voltage Balance Factor 0.80 Range: 0.58-0.95 (0.01 teps) 3411 Current Sum Function Enabled 3412 Current Sum Pickup Disabled V Disabled 5 A CT 0.5 A Range: 0.5-5 A (0.1 A steps) A 1 A CT 0.1 A Range: 0.1-1 A (0.
isv3o_1.bk : isv3o_cf.frm Page 10 Wednesday, August 7, 1996 10:51 AM ISGS Settings Worksheet for Date: Set A 6000 Matrixing 6100 Binary Inputs 6101 Input 1 001 002 003 004 Frz.
isv3o_1.bk : isv3o_cf.frm Page 11 Wednesday, August 7, 1996 10:51 AM ISGS Settings Worksheet for Date: Set A 6100 Binary Inputs (continued) 6103 Input 3 001 002 003 004 Frz.Buff2 Hi Frz.
isv3o_1.bk : isv3o_cf.
isv3o_1.bk : isv3o_cf.
isv3o_1.bk : isv3o_cf.
isv3o_1.bk : isv3o_cf.
isv3o_1.bk : isv3o_cf.frm Page 16 Wednesday, August 7, 1996 10:51 AM ISGS Settings Worksheet for Date: Set A 7100 Parameter Set 7103 Activation Set A Set B 7200 Configure Communicatins Port 7201 Local Port 2400 baud 4800 baud 9600 baud 19200 baud 7202 System Port 2400 baud 4800 baud 9600 baud 19200 baud 7203 Param.
isv3o_1.bk : isv3o_cf.frm Page 17 Wednesday, August 7, 1996 10:51 AM ISGS Settings Worksheet for Date: Set A 8200 Resets 8211 Breaker Ops 0-65535 8212 Sum IL1 Range: 0-99999 kA (0.01 kA steps) kA 8213 Sum IL2 Range: 0-99999 kA (0.01 kA steps) kA 8214 Sum IL3 Range: 0-99999 kA (0.01 kA steps) kA 8300 Breaker Monitoring 8301 Trip Source Impedance Enabled Disabled 8302 Trip Source Fail Yes No 8303 Trip Coil Cont.
isv3o_1.bk : isv3o_cf.frm Page 18 Wednesday, August 7, 1996 10:51 AM ISGS Settings Worksheet for B1500 B1502 Pickup 50 Enabled Disabled 5 A CT 1.0 A Range: 1-120 A (0.1 A steps) A 1 A CT 0.2 A Range: 0.2-24 A (0.1 A steps) A 0.00 s Range: 0-60 s (0.
isv3o_1.bk : isv3o_cf.frm Page 19 Wednesday, August 7, 1996 10:51 AM ISGS Settings Worksheet for Date: Set B B1700 Phase Time Overcurrent (51) B1702 Curve 51 Moderately Inverse Inverse Short Inverse Long Inverse Custom Very Inverse Extremely Inverse Definite Inverse Slightly Inverse I2T without Limit 0.5 A Range: 0.5-20 A (0.1 A steps) A 0.1 A Range: 0.1-4 A (0.1 A steps) A B1705 Time Dial 51 0.1 Range: 0.1-9.9 (0.
isv3o_1.bk : isv3o_cf.frm Page 20 Wednesday, August 7, 1996 10:51 AM ISGS Settings Worksheet for Date: Set B B1900 Directional Time Overcurrent (67) B1901 Function 67 Enabled B1902 Curve 67 Inverse Short Inverse Long Inverse Custom Very Inverse Extremely Inverse Definite Inverse Slightly Inverse I2T without Limit 5 A CT 0.5 A Range: 0.5-20 A (0.1 A steps) A 1 A CT 0.1 A Range: 0.1-4 A (0.1 A steps) A B1905 Time Dial 67 0.1 Range: 0.1-9.9 (0.
isv3o_1.bk : isv3o_cf.frm Page 21 Wednesday, August 7, 1996 10:51 AM ISGS Settings Worksheet for Date: Set B B2200 Overvoltage (59) B2201 Function 59 Enabled B2202 Curve 59 Inverse B2203 Pickup Source Voltage 59 (if VT mode is (L-N) Disabled Moderately Inverse Line-to-Line Very Inverse Definite Inverse Line-to-Neutral B2204 Pickup 59 130 V Range: 60-250 V (0.1 V steps) V B2205 Time Delay 59 (Definite) 0.10 s Range: 0-60 s (0.01 s steps), or ∞ s B2206 Time Dial 59 (Inverse) 0.
isv3o_1.bk : isv3o_cf.
isv3o_1.bk : isv30_gl.frm Page i Wednesday, August 7, 1996 10:51 AM Glossary address Unique four-digit number representing the location of a specific function parameter stored in the ISGS relay. address block Unique four-digit number ending in two zeros representing the location of a specific function stored in the ISGS relay. average line voltage Arithmetic average of AB, BC, CA line-to-line voltage (3-wire and 4-wire modes) (VAB+VBC+VCA)/3 = VAVG.
isv3o_1.bk : isv30_gl.frm Page ii Wednesday, August 7, 1996 10:51 AM Glossary Forward Parameter setting of several ISGS functions that allows the directional protection element to pickup on fault current only in the direction of normal power flow. High-Set Instantaneous Neutral or Ground Overcurrent (50HSN) A relay function that protects against a neutral or ground overcurrent condition. Tripping occurs when the neutral or ground current exceeds the programmed pickup at 100%.
isv3o_1.bk : isv30_gl.frm Page iii Wednesday, August 7, 1996 10:51 AM Glossary Phase Sequence Voltage (47) Relay function that protects against a phase sequence voltage condition. Tripping occurs when the phase sequence voltage indicated in the hardware configuration is not present at the device voltage inputs. This function operates without delay or inverse time characteristic.
isv3o_1.bk : isv30_gl.frm Page iv Wednesday, August 7, 1996 10:51 AM Glossary trip to occur. If the underfrequency condition subsides in less time than the delay time, the pickup will go inactive and the underfrequency function will reset. When tripping occurs, the actual condition that caused the trip is recorded in the device's nonvolatile trip log. Pickup occurs when the frequency in greater than the pickup setting.
isv3o_1.bk : isv3o_1.
isv3o_1.bk : isv3o_1.
isv3o_1.bk : isv3o_1.
isv3o_1.bk : isv3o_1.ix Page iv Wednesday, August 7, 1996 10:51 AM Notes: II I-iv Siemens Energy & Automation, Inc.
isv3o_1.bk : isv3o_sv.frm Page 5 Wednesday, August 7, 1996 10:51 AM Siemens Energy & Automation, Inc. Protective Relay Group Customer Service P.O. Box 29503 Raleigh, NC 27626-0503 Protective Relays Service Request Form To report problems with Siemens protective relays, make a copy of this form, complete it with as much information as you can, and fax it to Siemens Customer Service at 919-365-2583. Call customer service during regular business hours at 919-365-2395.
isv3o_1.bk : isv3o_sv.frm Page 6 Wednesday, August 7, 1996 10:51 AM Accessories Used Communications software: Other devices: Problem Description Error Messages To be completed by Siemens: Received by: Problem report tracking number: Date: Reviewed by: Date: Problem classification code: Sales engineer: Corrective action taken: Siemens Energy & Automation, Inc.
isv3o_1.bk : isv3o_fx.frm Page 1 Wednesday, August 7, 1996 10:51 AM FAX ORDER FORM TM Wisdom Software Wisdom software (for Windows®) simplifies the configuration of your ISGS relay. For a free copy, complete this form and fax it to: Siemens Energy & Automation, Inc.
isv3o_1.bk : isv3o_fc.
isv3o_1.bk : isv3o_fc.frm Page 4 Wednesday, August 7, 1996 10:51 AM Siemens Energy & Automation, Inc. Power Apparatus & Conditioning Division P.O. Box 29503 Raleigh, NC 27626-0503 Manual No. SG8158-00 1MTD 0896 Printed in U.S.A. © 1996 Siemens Energy & Automation, Inc. SIEMENS is a registered trademark of Siemens AG.
