Official export desk for İnci Transformatör Aksesuarları San. ve Tic. A.Ş. Certified manufacturer of off-circuit tap changers (30A to 1,250A), bimetallic dial thermometers, hermetic multi-function protection relays (DMCR), magnetic oil level indicators, and high/low voltage porcelain bushings. Shipped worldwide from Aksaray Erenler OSB, Turkey.
Precision-machined from Cu-ETP electrolytic copper, CW617N forged brass, and aluminous porcelain. Supplied directly to major European, Turkish, and Middle Eastern transformer manufacturers.
Linear, Delta, and Star arrangements with 3, 5, or 7 positions. Cu-ETP silver-plated contacts ensuring contact resistance < 50 µΩ under oil.
| Voltage Class: | 10 kV, 24 kV, 36 kV |
| Rated Current: | 30A – 1250A |
| Positions: | 3, 5, 7, 9 Steps |
| Operating Handle: | Padlockable Aluminum |
Direct-reading dial thermometer with resettable maximum temperature pointer. Equipped with 1 or 2 adjustable microswitches for Alarm & Trip protection.
| Dial Diameter: | 80 mm / 100 mm |
| Contact Rating: | 5A 250V AC / 2A DC |
| Thermowell Pocket: | G 1/2" or G 3/4" Brass |
| Protection Class: | IP65 Waterproof |
Hermetically isolated magnetic drive preventing oil leaks. Radial float arm with single or dual electrical microswitch contacts for low oil level alarms.
| Dial Indication: | Min / Norm / Max |
| Coupling Type: | Hermetic Magnetic Drive |
| Electrical Contacts: | 1 NO / 1 NC Switch |
| Ambient Range: | -25°C to +115°C |
Immediate overpressure venting to protect transformer tanks against rupture during internal arc faults. Available with directional exhaust cowl and visual pin.
| Setting Pressures: | 30, 50, 70 kPa Calibrated |
| Contact Microswitch: | Optional 1 SPDT (IP65) |
| Body Material: | Corrosion-Resistant Al |
| Gasket Material: | Viton / NBR Oil-Proof |
Integrated protection for hermetically sealed distribution transformers: Gas accumulation, tank overpressure, and dual-threshold oil temperature sensing.
| Monitored Params: | Gas, Pressure, Temp x2 |
| Gas Volume Trip: | 100 to 200 cm³ Gas |
| Pressure Setting: | 0.20 to 0.50 bar |
| Enclosure: | UV-Stabilized Polycarbonate |
Moisture absorption system for conservator-type transformers. Features an integrated hydraulic oil seal trap preventing direct atmospheric moisture ingress.
| Silica Capacities: | 0.5 kg, 1 kg, 2 kg, 5 kg |
| Chamber Material: | Borosilicate Glass / PC |
| Flange Fitting: | G 1/2", G 1", DIN Flange |
| Desiccant Type: | Orange Indicating Silica |
Flanged bottom drain valves with integrated syringe sampling cock for Dissolved Gas Analysis (DGA) and dielectric breakdown testing. Padlockable cap.
| Flange Standards: | NW22, NW31, DIN Flange |
| Sampling Cock: | Integrated DGA Cock |
| Working Pressure: | PN 16 (1.6 MPa) |
| Cap Locking: | Security Wire / Padlock |
High-mechanical strength C120 aluminous porcelain insulators with Cu-ETP copper conducting rods, brass flags, and transformer oil-resistant gasket sets.
| LV Standards: | DIN 42530 (1kV 250–3150A) |
| HV Standards: | DIN 42531/32/33 (10–36kV) |
| Insulator Glaze: | Brown (RAL 8016) / Gray |
| Conducting Rod: | Electrolytic Cu-ETP |
Transformer accessories operate immersed in hot dielectric mineral and synthetic ester oils for 30+ years. Every raw material at İnci Transformatör is certified with EN 10204 3.1 inspection certificates.
CW004A grade copper with min 99.90% purity and electrical conductivity > 100% IACS. Silver-plated contacts to withstand short-circuit electromechanical stresses without welding.
CuZn40Pb2 high-density forged brass bodies for valves, thermowell pockets, and terminals. Zero porosity ensures absolute oil tightness even under continuous vibration and thermal cycling.
High-grade electrical porcelain conforming to IEC 60672-3. Uniformly vitrified with high-gloss brown glaze (RAL 8016), resistant to heavy industrial pollution and coastal salt fogs.
Custom molded fluorocarbon (FKM/Viton) and nitrile (NBR) gasket sets tested against ASTM D3455 for compatibility with mineral insulating oils and Midel ester fluids.
Select your transformer design type, voltage class, and rating to identify the standard DIN/EN accessory configuration for your bill of materials (BOM).
All accessories manufactured in compliance with European IEC 60076 & DIN standards.
Every accessory unit produced at our Aksaray facility undergoes mandatory routine testing prior to packaging and export shipment.
100% vacuum chamber testing for oil level indicators and hermetic relays. Validates absolute tightness with sensitivity down to 1x10⁻⁸ mbar·l/s.
Micro-ohmmeter testing of all tap changer contact steps. Contact resistance must measure under 50 micro-ohms (µΩ) to prevent localized hotspots under oil.
Power frequency withstand test (50 Hz, 1 minute) applied across porcelain insulators and contacts up to 75 kV rms according to IEC 60214-1.
Bimetallic dial thermometers verified across 5 temperature points (20°C, 50°C, 80°C, 100°C, 120°C) against PT100 reference sensors (Class 1.5).
İnci Transformatör Aksesuarları San. ve Tic. A.Ş. operates an advanced 7,800 m² enclosed production plant in the Aksaray Erenler Organized Industrial Zone. With in-house precision CNC machining centers, high-pressure aluminum die-casting cells, automated silver-plating baths, and specialized helium leak-testing laboratories.
As an approved Tier-1 OEM supplier to leading international transformer manufacturers across 40+ countries in Europe, the Middle East, North Africa, and Central Asia, we deliver contract-bound reliability, competitive Turkish manufacturing efficiency, and complete technical compliance.
Includes dimensional 2D/3D CAD drawings, contact mounting schematics, oil resistance charts, DIN standard cross-references, and order code configuration tables.
Submit technical drawings, Bill of Materials (BOM), or tender requests directly to our Senior Export Desk for proforma pricing, EUR.1 movement certificates, and dispatch schedules.
