ALCE instrument transformers and epoxy insulators

ALCE switchgear components: indoor and outdoor current and voltage transformers up to 36 kV, GIS shielded units, busbar sensors, and epoxy post insulators.

Medium-voltage indoor support and busbar current transformers AB12, AB24, and AB36

ALCE AB12, AB24, AK24, and AB36 indoor block-type current transformers are engineered for medium-voltage switchgear panels rated from 12 kV up to 36 kV. Units isolate primary high-voltage busbars while feeding revenue metering instruments and protective relay terminals.

Rated system voltage classes spanning 12 kV, 17.5 kV, 24 kV, and 36 kV AC power grids
Metering accuracy classes 0.2S and 0.5S paired with 5P10, 5P20, and 10P protection cores
Window-type busbar series AD12, AD17, and AD24 for direct primary conductor feedthrough
Vacuum-poured cycloaliphatic and silica-filled epoxy resin body resisting partial discharge

Medium-voltage indoor voltage transformers VB12, VB24, VB36, and fused VBF series

ALCE single-pole grounded voltage transformers VB12, VK12, VB24, VB36 and double-pole ungrounded models 2VB12, 2VB24, 2VK36 operate inside medium-voltage switchgear up to 36 kV. Fused VBF12, VBF24, and VBF36 variants integrate replaceable high-voltage limiting fuses.

Single-pole phase-to-earth transformers VB and VK for 12 kV to 36 kV indoor cubicles
Double-pole phase-to-phase units 2VB12, 2VB24, and 2VK36 for insulated neutral networks
VBF-FE and VBF-FS variants equipped with integrated primary protection fuse compartments
Auxiliary open-delta residual winding for ground-fault detection and grid supervision

Outdoor medium-voltage current and voltage transformers AH17, AH24, A32H, and VH

ALCE outdoor instrument transformers encompass current units AH17, AH24, A32H and potential transformers VH17, VH24, VH36, 2VH24, 2VH36 designed for open-air substations. Hydrophobic cycloaliphatic epoxy bodies provide tracking resistance under harsh UV exposure.

Extended creepage distance across shedded insulator skirts for polluted outdoor zones
Outdoor current transformers AH17 (17.5 kV), AH24 (24 kV), and A32H (36 kV) for substations
Single-pole (VH17, VH24, VH36) and double-pole (2VH24, 2VH36) outdoor potential units
High weatherability against ultraviolet radiation, coastal salt fog, ice, and thermal shock

Shielded voltage transformers for gas-insulated switchgear VEI, VEG, and VMT series

ALCE specialized voltage transformers VEI-24, VEG-36B, VEG-36C, VEG-36N, and VMT24/VMT36 are built for compact gas-insulated switchgear (GIS) and ring main units up to 36 kV. Units incorporate conductive metallic surface coatings and standardized cone plug interfaces.

Metallic conductive outer coating on VEI-24 and VEG-36 models for touch-safe grounding
Metal-clad enclosed voltage transformers VMT24-IN, VMT24-OUT, and VMT36-OUT up to 36 kV
Standardized plug-in cone bushings matching gas-insulated switchgear compartment flanges
Compact footprint and ferroresonance damping core geometry for modular RMU switchgear

Low-voltage busbar and cable current transformers ASB, ADB, ADK, ACK, and KAT

ALCE low-voltage instrument transformers ASB, ADB, ADK, ADS, ACK and cable-type sensors KAT, KATK, HKA operate in 0.72 kV distribution boards and medium-voltage cable compartments. Window apertures accommodate flat busbars from 20 mm to 160 mm and round power cables.

Busbar current transformers ADB-30 to ADB-127 and ADK-2010 to ADK-12530 series
Split-core transformers ACK-2030, ACK-5080, ACK-80120, and ACK-80160 for retrofit installs
Cable-type current transformers for indoor (KAT, KATK, SAA) and outdoor (HKA) feeders
Summation current transformers TA2-1, TA3-1 and low-voltage potential units VM and MKT

Medium-voltage epoxy post insulators RMA, capacitive dividers DKA, and wall bushings

ALCE primary insulation components include indoor post insulators RMA, RMB, RMC (7.2–36 kV), capacitive voltage divider insulators DKA, DKB for voltage presence indication systems, and wall bushings GKR, SCB, DDGB, HDGB, GKB alongside custom switchgear epoxy poles.

Indoor post insulators RMA, RMB, and RMC for 7.2 kV to 36 kV grids (cantilever load up to 16 kN)
Capacitive divider post insulators DKA-10N, DKB-20N, DKB-30N, and EK-30N for voltage indicators
Wall bushings GKR and GKB, spout bushings SCB-12, and bolt bushings DDGB and HDGB
Custom-molded epoxy pole housings and insulating rods for SF6 and vacuum circuit breakers

History of ALCE Elektrik in Istanbul and vacuum epoxy resin molding technology

Established in 1968 in Istanbul, ALCE Elektrik has spent over five decades designing and manufacturing instrument transformers, medium-voltage insulators, and molded epoxy assemblies.

The corporate headquarters and manufacturing plant in Pendik, Istanbul span nineteen thousand square meters, employing over six hundred specialized engineering and production staff.

Transformer bodies and insulation components are produced using automated pressure gelation and vacuum pouring of cycloaliphatic and quartz-filled epoxy resins.

High-voltage factory laboratories perform routine and type testing, verifying partial discharge levels, power-frequency withstand potentials, lightning impulse endurance, and thermal stability.

Design of indoor support current transformers AB12, AB24, and AB36 for MV switchgear

ALCE indoor block-type support current transformers AB12, AB24, AK24, and AB36 are deployed in air-insulated medium-voltage switchgear panels rated from 12 kV up to 36 kV.

Primary conductors and toroidal magnetic cores wound from nanocrystalline or grain-oriented silicon steel are encapsulated within a solid silica-filled epoxy insulation block.

Depending on substation metering and protection architectures, units are manufactured with single, dual, or triple secondary windings feeding revenue energy meters and protective relays.

Configurations support primary or secondary ratio reconnection alongside window-type busbar current transformers AD12, AD17, and AD24 for high-current switchgear busbars.

Single-pole and double-pole voltage transformers VB, VK, and fused VBF series

ALCE indoor inductive voltage transformers comprise single-pole phase-to-ground models VB12, VK12, VB24, VB36, VK36 and double-pole phase-to-phase units 2VB12, 2VB24, 2VK36.

Single-pole units connect between phase busbars and substation earth, whereas double-pole models measure line-to-line voltages in isolated neutral distribution networks.

To protect medium-voltage cubicles against internal short-circuit faults, fused series VBF12-FE, VBF24-FE, and VBF36-FE integrate a high-voltage current-limiting fuse directly into the top insulation well.

The removable fuse carrier allows maintenance personnel to replace blown fuse links during scheduled switchgear inspection intervals.

Outdoor cycloaliphatic transformers AH, A32H, and VH for open-air substations

For open-air substations and overhead distribution feeders, ALCE manufactures outdoor current transformers AH17, AH24, A32H and outdoor voltage transformers VH17, VH24, VH36, 2VH24, 2VH36.

Outer insulation bodies are molded from hydrophobic cycloaliphatic epoxy resin formulated to resist surface tracking, arc erosion, and weathering.

Alternating shedded insulator skirts provide extended creepage distances ensuring dielectric reliability across heavy industrial pollution zones, coastal salt spray environments, and high ultraviolet radiation regions.

Hot-dip galvanized base frames and stainless steel terminal hardware prevent corrosion across wide ambient temperature swings.

Shielded GIS transformers VEI, VEG and low-voltage sensors ADB, ADK, and KAT

Compact gas-insulated switchgear (GIS) and ring main units utilize ALCE shielded voltage transformers VEI-24, VEG-36B, VEG-36C, and metal-clad models VMT24 and VMT36.

Outer epoxy surfaces receive a conductive metallic coating connected to ground, equalizing electric field distribution and allowing safe touch contact inside tight cable compartments.

For low-voltage 0.72 kV switchgear and feeder cables, the factory produces busbar current transformers ASB, ADB, ADK, split-core retrofit transformers ACK, and zero-sequence cable transformers KAT, KATK, and HKA.

Aperture windows accommodate flat copper or aluminum busbars up to 160 mm wide as well as multi-core medium-voltage cables.

Post insulators RMA, capacitive dividers DKA, and nameplate identification rules

ALCE primary switchgear insulation components cover indoor post insulators RMA, RMB, RMC (7.2 kV to 36 kV), capacitive divider insulators DKA, DKB, and wall or spout bushings GKR, SCB, DDGB, HDGB, GKB.

Capacitive insulators DKA and DKB house an embedded high-voltage capacitor driving panel-mounted voltage presence indication systems.

When requesting a replacement ALCE transformer or insulator, record the exact model code from the rating plate together with maximum system voltage, primary and secondary current or voltage transformation ratios, accuracy class and rated burden in VA for each winding, plus short-time thermal current (Ith) and dynamic current (Idyn) ratings.

ALCE and model names are trademarks of their respective owners and are used only to identify the equipment for which we source parts. SpareX is not an official dealer, distributor or representative of ALCE and is not affiliated with the trademark owner. Origin, documents and warranty are stated for each item in the quotation.