L90-H03-HKH-F8L-H6D-L6C-NXX-SXX-UXX-W7I

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GE Multilin's L90-H03-HKH-F8L-H6D-L6C-NXX-SXX-UXX-W7I is a Line Current Differential System with protective features such as ground fault detection.

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  • Part Number: L90-H03-HKH-F8L-H6D-L6C-NXX-SXX-UXX-W7I
  • SKU: L90H03HKHF8LH6DL6CNXXSXXUXXW7IGM
  • Manufacturer: GE Multilin
  • Series: UR Series Universal Relays

L90-H03-HKH-F8L-H6D-L6C-NXX-SXX-UXX-W7I Technical Specifications

# of Data Logging Channels 1 to 16
AC Voltage Withstand continuous at 260 V to neutral; 1 min/hr at 420 V to neutral
DCMA Input Impedance 379 Ω ±10%
IRIG-B Input Amplitude Modulation 1 to 10 V pk-pk
LED Test Duration approximately 3 minutes
Noise 0 dB
Operating Temperature –40°F to 140°F

About the L90-H03-HKH-F8L-H6D-L6C-NXX-SXX-UXX-W7I

Offering protection and management functions for overhead lines, circuits with tapped transformer feeders, and single and dual-breaker circuits requiring autoreclosing functions, General Electric Multilin’s L90-H03-HKH-F8L-H6D-L6C-NXX-SXX-UXX-W7I is a Line Current Differential System. The relay can detect higher impedance ground faults due to its adaptive statistical restraint approach. 

Each contact output/input module possesses twenty-four terminal connections. They are configured in an eight by three fashion, and each row of three terminals can be tasked with the outputs of a single relay. For the form-C relay outputs, a relay’s normally closed (NC), normally open (NO), and common contacts connect to the row of three terminal connections. Prospective buyers should reference the 1601-0081-AB2 user manual since contact arrangements vary between system models. 

The L90-H03-HKH-F8L-H6D-L6C-NXX-SXX-UXX-W7I has a built-in error detection system that safeguards the L90 by identifying incorrect data that would otherwise lead to misoperation. The relay computes high-bit errors using a 32-bit CRC check. Beyond this monitoring feature, the relay can also use GPS time synchronization to address channel asymmetry on multiplexed channels. This feature can compensate for up to 10ms of channel asymmetry. 

The relay is capable of power system troubleshooting, able to record the operation of internal elements and time-stamp those logs in order to provide a sequence of operations. It can also graphically display ground phase distance elements for user-selected zones and analyze line faults at a rate of 64 samples per cycle. These features reduce time spent troubleshooting and give users a better understanding of their system and its needs.

Frequently Asked Questions about L90-H03-HKH-F8L-H6D-L6C-NXX-SXX-UXX-W7I

What are the unique features of a L90-H03-HKH-F8L-H6D-L6C-NXX-SXX-UXX-W7I that differentiate it from other L90 Multilin universal relays that function as protection system with segregated line current differentials and distance protection?
The L90-H03-HKH-F8L-H6D-L6C-NXX-SXX-UXX-W7I is a Multilin L90 line protection system universal relay. The W7I order code affords the unit with inter-relay communications that are characterized by 1300 nm, multimode, LED, and as having channels. The L6C designation shows that the Digital I/O has eight form-C outputs. The L90 Multilin also has 19 digital inputs (H6D). The F8L alphanumeric specifies the order option for the CT/VT DSP, which for this unit is the standard 4CT/4VT with enhanced diagnostics. Finally the H03 affords the unit with the standard 19 inch horizontal rack with the IEC 61850 software option. 
What is the over voltage and under voltage protection feature of the L90 Multilin line protection system of the UR series?
The overvoltage and undervoltage protection will apply in the case of longer lines that contain minimal load or non-existent load. In this situation the lines may encounter voltages that exceed the rated/unit voltage level of that line. The three-phase overvoltage feature of the L90 would come into play at that time to start a local trip and a remote trip using DTT (direct transfer tripping). 

Reviews For L90-H03-HKH-F8L-H6D-L6C-NXX-SXX-UXX-W7I

Internal Review
(4.0)

The L90-H03-HKH-F8L-H6D-L6C-NXX-SXX-UXX-W7I’s scalable hardware offers it upgradeability and versatility, though users should be careful to note module positioning before installing a new one, as modules can only be replaced with like modules. -AX Control Tech Team

Repair Services For L90-H03-HKH-F8L-H6D-L6C-NXX-SXX-UXX-W7I

Type Lead Time Price Action
Repair Service 1-2 weeks $1972

Our highly skilled technicians can repair your L90-H03-HKH-F8L-H6D-L6C-NXX-SXX-UXX-W7I. All of our repairs come with a 3 Year AX Control Warranty. Please contact us for additional information about our repair process. To receive the repair pricing and lead time listed above please process your repair order via our website. The following repair options may be available upon request:

  • 48-72hr Rush Repair
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