Description
The SR469-P5-HI-A20-E is from GE Multilin and is part of the SR 469 Motor Management Relay line. This unit is designed with 5 amp phase CT secondaries. Designed for use with medium-voltage motors, SR 469 relays offer integrated management and protection. AX Control maintains on-hand stock of a number of different Multilin SR 469 relays.
The SR469-P5-HI-A20-E offers 70-265 VAC, 90-300 VDC control power. This unit has an enhanced front panel. However, if you need a unit that can be used within a harsh environment, please refer to our listing for the SR469-P5-HI-A20-E-H, which is like this unit in every way with the exception of an additional harsh environment conformal coating.
The SR469-P5-HI-A20-E has a well-designed front panel that offers ease of use. The panel includes an RS-232 program port interface with a 9600 baud rate, programmable up to 19,200 baud. This panel has a draw-out handle that can be sealed to prevent any sort of unauthorized removal. The front panel has a large LCD display with forty character capabilities. Users can see diagnostic messages like trips or alarms locally through this display. Additionally, the panel has motor and output status indicators, unit indicators, a numeric keypad, control and programming keys, including a reset, escape, and menu button, and value keys that will allow users to change setpoint values.
GE Multilin manuals and user guides will provide further details about this unit, including information regarding installation, handling, safety, and maintenance. AX Control can help with replacement manuals if you no longer have your originals.
Frequently Asked Questions about 469-P5-HI-A20-E
What does the setting of enable relay 469-P5-HI-A20-E do?
When setting is enabled on the interface of the relay 469-P5-HI-A20-E, access to other interfaces is not immediately enabled. A passcode must be specially set on the relay in advance to access the desired interface. After you have made all the changes, you can ask to disable access to the Settings.
Does the SCADA program on my GE 469-P5-HI-A20-E relay have safety features?
Yes, the relay 469-P5-HI-A20-E can be programmed through a security application using SCADA systems, but it is the programmer's responsibility to absorb the correct security for the relay and application.
What functions are designed for 469-P5-HI-A20-E motor management applications?
The characteristics of the 469-P5-HI-A20-E motor management relay have a number of features designed to aid in a wide range of applications. Setting up such a multifunctional device can be difficult, but if you collect enough system data such as CT primary and secondary ratings, motor name data, motor running curves, VT primary ratings, etc. You should define the elements that protect the relay when it is enabled. A list of features to protect directivity, time delay, operating curves, any time dial, and multiplier or pick up parameters is also listed.
What should be done about the heat capacity and unbalanced deviation of the deviation K factor of the Ag SR469-P5-HI-A20-E motor management relay?
Because the Ag SR469-P5-HI-A20-E motor management relay has an unbalanced bias of heat capacity, heat capacity use should be enabled so that the thermal effect of the unbalanced bias current is added to the heat capacity. For an unbalanced biased K factor, the value is calculated from the contribution of the negative current flowing in the rotor due to the unbalanced K factor. There is a formula based on empirical data statistics of the letter "K", which equals 230 divided by the square of the current of the unit-locked rotor. Locking rotor current = 631 or 6.31 times FLA.
What is the cold/heat curve ratio of this relay SR469-P5-HI-A20-E?
By using the data sheet for the SR469-P5-HI-A20-E relay, the safe stall hot and cold time curve ratio was set to 16/18, equal to 0.89. By dividing the thermal safe stall time by the cold safe stall time, the ratio of the hot curve to the cold curve can be simply calculated, or the motor thermal limit curve can be used.
What is the maximum bias rating of the resistance temperature detector for the SR469-P5-HI-A20-E relay?
The resistance temperature detector bias maximum rating is a set value, set to the insulation rating or slightly lower. To set the maximum deviation of the resistance temperature detector to Class F insulation, the motor is rated for 155 degrees Celsius.
GE Fanuc Related Products
| 369-HI-R-0-0-0 | 369-HI-R-0-0-0-0-E |
| 369-HI-0-0-0-0 | 369-HI-R-0-0-E-0-E |
| 369-HI-R-M-0-0 | 369-HI-R-B-F-E-H-E |
| 369-HI-0-M-0-0-0 | 369-HI-R-M-F-E-H-E |
| 369-HI-0-M-F-E-0 | 369-HI-R-M-O-E-O-E |
| 369-LO-R-0-0-0-0 | 369-HI-R-M-O-O-O-E |
| 369-HI-R-M-0-E-0 | 369-LO-0-M-F-E-0-0 |
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