Page Analog Input In the two-wire connection scheme, the connection from terminal B11 to B12 is made at the terminal block on the rear of the This connection must not be omitted. The two-wire connection scheme does not compen- sate for the resistance of the wiring between the and the RTD. To ensure maximum reliability, all equipment should have similar transient protection devices installed.
The PC software required to use this interface is included with the relay. Cabling for the RS port is shown below for both 9 pin and 25 pin connectors. Page Irig-B No special ventilation requirements need to be observed during the installation of the unit. The unit does not have to be cleaned. NOTE Hazard may result if the product is not used for its intended purpose.
This indicator flashes when this setpoint group is being edited. When the minimum value is reached, setpoint selection continues from the maximum value. Press and hold the value keys down to rapidly change values. Page Number Keys Note that diagnostic messages for self-resetting targets disappear with the condition, but diagnostic messages for latched targets remain until they are cleared.
When no targets are active, illuminates all front panel N EXT indicators for approximately 5 seconds. Page Setpoint Entry Passcode protection may also be enabled.
When enabled, the requests a numeric passcode before any setpoint can be entered. As an additional safety measure, a minor self-test error is generated when the pass- code is entered incorrectly three times in a row. The mismatch factor is Page Problem 2: Onload Tap Changer The allows monitoring of the tap changer position via the tap position input. With this input, the dynam- ically adjusts the CT ratio mismatch factor based on the actual transformer voltage ratio set by the tap changer.
Page Phase Shifts On Three-Phase Transformers The source phase sequence must be stated when describing the winding phase relationships since these rela- tionships change when the phase sequence changes. This is because the physical connections and hence the equations used to calculate current for the delta winding have not changed.
The passcode can be determined using a deciphering program. Page Preferences When interacting with the display using the front panel keys, the display will always operate at full brightness. This setpoint cannot be None changed via the communication ports. Page Dnp Communications Enabling this setpoint will cause the cold restart request to initialize only the DNP sub-module. When "Disabled" is selected, a cold restart request will cause loss of protection until the reset completes.
Page Scratchpad is set to Programmed. The setpoint is defaulted to Not Programmed when the relay leaves the factory. Yes Enter passcode supplied by the manufacturer. Page 82 to upgrade its options. Page 84 0. W3 setpoints are only visible if the unit has the appropriate hardware and if the selected transformer type is 3-winding. Page Harmonics Enter the trip time for 1. The 1. Page Ambient Temperature Monthly Average. Ambient temperature is used in the calculation of Insulation Aging and must be enabled for the function to operate.
There is a display for each month similar to the box above. Enter the time period over which the current demand calculation is performed. Select Open when connected to a normally closed contact where the signaling state is open. Page S4 Elements Page Harmonic Inhibit Energization inhibit settings are put in service upon detection of de-energization. Upon energization, the ener- gization inhibit duration timer is initiated and the settings are removed from service when the time delay elapses.
Page Restricted Ground Differential Ground It is intended to provide sensitive ground fault detection for low magnitude fault currents which would not be detected by the percent differential element. Page CTs used. Page Frequency Range: Page Transformer Overload Select any logic input that, when asserted, indicates the transformer cooling SIGNAL: Disabled system has failed and an over-temperature condition exists.
The logic input should be connected to the transformer winding temperature alarm contacts. The sequence of entries in the linear array of parameters follows the general rules listed in the following section. For all these gates, the inputs precede the gate itself. Page Any equation entered in the that does not make logical sense according to the notation described here, will be flagged as a self-test error. This setpoint is only operational if analog output testing is enabled. This signal has an effect only if the is initially in Prefault Mode.
Page Prefault Values Prefault Mode. Range: 0. Page Time Overcurrent Curves 5. Page 0. Page 1. Page 5. Page Harmonic Content 0. Page Voltage Jan 01 Jan 01 This message displays the last time that the demand data was cleared. H2b: 0. Page This message displays the ambient temperature at the moment of the event.
This information, which includes hard- ware and software revision codes and calibration dates, is for GE Power Management service personnel. To view Page Calibration This message displays the date the relay was first calibrated. This serves as a warning that the relay has not been programmed for the installation and is therefore not in the in-service state. Page This error may be removed by entering the correct passcode. Ambnt temperature minor This error is caused when ambient temperature is out of range.
Page detects an invalid serial number. Page Scheme Logic 7. Page Block Diagrams 7. Page 7. Page Overcurrent Scheme Logic 7. Page Frequency Logic 7. Page Modbus Protocol 8. This produces a 10 bit data frame. The can be configured to include an addi- tional even or odd parity bit if required, producing an 11 bit data frame.
Modbus defines function codes of 1 to The GE Power Management implements some of these functions. No: go to 3. Yes: continue. NOTE 8. The receiving device must mea- sure the time between the reception of characters. Page Supported Function Codes 8. Modbus defines function codes of 01h to 7Fh. Registers are 16 bit two byte values transmitted high order byte first.
Thus all GE Power Management setpoints and actual values in the memory map are sent as two byte regis- ters. This function code allows the master to read one or more consecutive setpoints or actual values from the addressed slave device.
This response will be returned if a GE Power Management device connected to the RS external device port of the has failed to respond to the Page Reading The Event Recorder Attempting to retrieve data for older triggers that are not stored will result in a Modbus exception response when writing to the 'Trace Buffer Selector Index'. Page 0 to 0 ms FlexCurve A Delay at 3. Page Tap Changer Failure Delay 0 to Page Format: Signed value, 3 decimal places Example: Page Dnp Communications 8.
Additional set- points related to DNP are discussed in Section 5. Page Implemenation Table The point tables for Binary Input and Analog Input objects contain a field which defines to which event class the corre- sponding static data has been assigned. For this object, the qualifier code must specify an index of 7 only. Page When using object 10 to read the status of a Binary Output, a read of point 0 will always return zero.
For other points, the current state of the corresponding Virtual Input will be returned. Page User Map Address setpoint note that programming of these setpoints can only be accomplished via Mod- bus.
Please note that changes in User Map Values never generate event objects. Page Pc Installation 1. Ensure that Windows is running on the local PC. All setpoint files should have the exten- sion. Click OK to proceed. The program reads all the relay setpoint values and stores them to the selected file. Page Firmware Upgrades File names for released firmware have the following format: 33 D A4.
Click the Transformer button in the System Setup window. The following dialog box prompts for the transformer setpoint information. Note that the number of selec- tions shown is dependent on the installed options. Page Viewing Actual Values For example, to view the positive, negative and zero sequence currents in any of the windings click on the Sequence tab. Page 9. Page Test Setup With only I connected with a return path the pickup level of any element can be measured.
Page Logic Inputs 5. Close open the switch contacts. Check that the input state is detected and displayed as Asserted. Easy to use Transformer Protection supported by industry leading suite of software tools Improved security for transformer energization Accurate built-in metering functions Advanced FlexLogic automation capabilities Fast, flexible and reliable communications IRIG-B time synchronization, event reports, waveform capture, data logger Built in simulation features for setpoint verification Modbus and DNP 3.
Optional conformal coating for chemically corrosive and humid environments Security Audit Trail provides detailed traceability for system configuration changes Minimize maintenance time with draw-out capability Primary and back-up protection and management of small, medium and larger power transformers, autotransformers and reactors Transformer asset monitoring using Hottest Spot, Loss-of-Life and Aging Factor Stand-alone or component in automated substation control system.
Contact Us. Easy to use Transformer Protection supported by industry leading suite of software tools Improved security for transformer energization Accurate built-in metering functions Advanced FlexLogic automation capabilities Fast, flexible and reliable communications IRIG-B time synchronization, event reports, waveform capture, data logger.
Built in simulation features for setpoint verification Modbus and DNP 3. Optional conformal coating for chemically corrosive and humid environments Security Audit Trail provides detailed traceability for system configuration changes Minimize maintenance time with draw-out capability.
Primary and back-up protection and management of small, medium and larger power transformers, autotransformers and reactors. Transformer asset monitoring using Hottest Spot, Loss-of-Life and Aging Factor Stand-alone or component in automated substation control system. Analyze generator faults using waveforms that are captured at the time of generator faults or system instabilities.
The integrates seamlessly with other relays for complete system protection. One optional Ethernet port is available at the rear of the relay. The front panel port allows easy local computer access. The baud rate of all the ports is variable from to 19, bps.
The optional Ethernet port can be used to connect the to 10 Mbps Ethernet networks. The communication system of the is designed to allow simultaneous communication via all ports. Using Ethernet as the physical media to integrate the to Local or Wide Area Networks, replaces a multipoint wired network e. Convenient COMTRADE and Sequence of Events viewers are an integral part of the Setup software included with every relay, to carry out postmortem event analysis to ensure proper protection system operation.
Learn More. Support Documents. Application Notes. Multilin - Legacy Transformer Protection System High-speed, draw-out transformer protection and management. As an alternative, please refer to the relay The Transformer Protection System is a full featured transformer protection relay, suitable for application on small, medium, and large power transformers.
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