kries IKI-LUM 92 - User Manual

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Overview

Function Description
Important Technical Specifications
Usage Features
Maintenance Features

The IKI-Split-Core Transducer: IKI-LUM 92 mm is a directional split-core transducer designed for Siemens-Bushing applications. This device is specifically engineered for use with IKI fault indicators, IKI grid-controllers, and IKI transformer protection devices. IKI current transformers are designed for maximum current ranges, offering ease of mounting and connection, and are typically connected to IKI devices via suitable connection cables.

Function Description

The IKI-Split-Core Transducer serves as a crucial component for current measurement in electrical systems. Its primary function is to accurately measure current and provide signals to connected IKI devices, which then utilize this information for fault indication, grid control, and transformer protection. The split-core design allows for easy installation around existing conductors without the need to disconnect the primary circuit, making it a convenient solution for retrofitting and maintenance. The directional sensing capability ensures that the current flow direction is also detected, which is vital for advanced fault location and grid management.

Important Technical Specifications

Operation Conditions:

Protection class: IP54, indicating protection against dust ingress and splashing water from any direction.

Characteristics:

Applicable at nominal frequency: 50 Hz, 60 Hz, making it suitable for various international power grids.
Inner diameter: 92 mm, accommodating a wide range of conductor sizes.
Transmission ratio: 2000 / 1, providing a significant reduction in current for measurement purposes.
Load power: 0.2 VA @ 600 A.
Thermal maximum current: 27 kA, indicating its ability to withstand high current surges.
Maximum continuous thermal current: 650 A.
Insulation voltage transformer: 3 kV, ensuring safe operation in medium voltage environments.
Directional current sensing: Yes, a key feature for advanced fault detection and grid management.
Installation location: Bushing of SF6-Switchgear, specifying its intended application environment.

Product Information:

Article number: 2512106_H004.
Quantity unit: Set with 3 pieces, indicating that the product is typically supplied in sets for three-phase systems.
Product designation: IKI-LUM_d92 Split-Core Transducer for SIEMENS-Bushings (set) | Ø 92mm.

Compatibility:

Usable with: IKI-22, IKI-23, IKI-35, IKI-50, IKI-50_1F R2, IKI-50_1F R2e, IKI-55. This wide compatibility ensures integration with a broad range of IKI fault indicators and grid controllers.

Connecting Cables:

3503118_S: Connecting cable set | pluggable | Length = 3,0m.
3503135_S: Connecting cable set | pluggable | Length = 5,0m.
Connecting cable set | pluggable | other lengths on request. These options provide flexibility in installation distance from the main unit.

Usage Features

Features:

Steckbare Anschlussleitung für leichte Montage (Pluggable connection cable for easy assembly): Simplifies installation and reduces wiring time.
Kennzeichnung der Lastflussrichtung (Marking of the load flow direction): Essential for correct installation and accurate directional current sensing.
Leichtes Öffnen und Schließen durch Druckverschluss (Easy opening and closing by snap fastener): Facilitates quick and tool-free installation around conductors.
Fixierung am Kabel mit Kabelbinder (Fixation on the cable with cable tie): Ensures secure attachment of the transducer to the conductor, preventing movement and ensuring stable measurements.
Einsetzbar auf C-Konus-Durchführungen zusammen mit Durchführungs-Hülsen (Can be used on C-cone bushings together with bushing sleeves): Enhances versatility and compatibility with standard bushing types.

Assembly Instructions: The assembly process involves several steps to ensure proper installation and functionality:

Open transducer core, press tab in marked direction with thumb (A) and pull core out of housing (B). This initiates the split-core opening mechanism.
Fasten CTs to cable with cable tie, close transducer core until bead engages tab. This secures the transducer around the conductor.
Orientation: "K (P1)" in direction of busbar, "L (P2)" in direction of cable. Correct orientation is critical for accurate directional current sensing.
Note shield return through current transformer. This refers to the proper routing of the cable's shield.

The figures provided in the manual illustrate the components and assembly steps:

(1) Cable
(2) Cable tie
(3) Tab to open CTs
(4) Shield return
(5) Connector socket for connecting cable
(6) Divisible CTs core
(A) Thumb press point for opening
(B) Housing part to pull out

Maintenance Features

Safety Instructions:

During installation, the five safety rules must be observed. These fundamental safety rules are paramount to prevent accidents and ensure the well-being of personnel.
The current transformers may only be placed on shielded, touch-proof cables! This ensures that the installation environment is safe and minimizes the risk of electrical shock.
The current transformers must not be operated in open condition. Operating the transducer with an open core can lead to inaccurate readings or damage to the device.
Damaged current transformers must not be used. Any physical damage to the transducer can compromise its performance and safety.
The cable shield must be fed back through the current transformers in an insulated manner for proper function. This detail is crucial for maintaining the integrity of the measurement and ensuring accurate readings.
Please refer to the operating instructions of the respective device for further details. This emphasizes the importance of consulting the complete documentation for comprehensive information on operation and maintenance.

While the manual does not explicitly detail routine maintenance tasks, the emphasis on safety instructions and proper installation practices implies that correct initial setup and adherence to operational guidelines are key to the device's longevity and reliable performance. The robust design and IP54 protection class suggest that the device is built to withstand typical environmental conditions in switchgear applications, reducing the need for frequent maintenance. In case of any issues, the compatibility with various IKI devices and the availability of connecting cables of different lengths facilitate troubleshooting and potential replacement of components.

kries IKI-LUM 92 Specifications

General

Brand	kries
Model	IKI-LUM 92
Category	Transducer
Language	English