ngef transformer diverter switch ngef OLTC spares NGEF OLTC Services

Welcome To Spectanet

        We are experienced and professional company based in Bangalore providing Overhauling and Repair of NGEF TRANSFORMER OLTC -30 KV to 220 KV, NGEF OLTC Motor Drive Wiring, NGEF OLTC Control Gear, Repair NGEF OLTC Reduction Gear Assembly, NGEF OLTC Driving Mechanism, NGEF OLTC Selector Switch And NGEF OLTC Diverter Switch 200A to 1500A.

       We also provide complete NGEF OLTC spares like complete NGEF Diverter Switch,complete NGEF Drive Motor Box,fixed, moving contact-ngef transformer oltc-on-load-tap-changers, braids, gear box, fibre cylinders for Flange Type And Fork Type, transition resistance, ‘o’rings, oil seals, gaskets suitable for NGEF ,Trafo-Union ,AEG AND MR GERMANY make OLTC’s.

SERVICES PROVIDED:

  • Maintenance of on load tap changers(NGEF ,TRAFOTECH ,AEG AND MR GERMANY make OLTC’s).
  • Overhauling of In-Tank & Flange mounted OLTCs.
  • Diverter Switch Overhauling.
  • Motor Drive Panel Overhauling and Rewiring.
  • Fault diagnosis & solutions

OLTC DIVERTER SWITCH SPARES

       The NGEF OLTC diverter switch employs “flag cycle” system of operation. For each phase they have two main contacts, two switching contacts and two resistor contacts. Transition resistance is connected in connected in series with resistor contact and are important because they ensure that he load current is transferred from one tap to other without interruption.

OLTC SELECTOR SWITCH SPARES

   The selector switch is mounted on the bottom plate of diverter switch tank submerged in insulating oil of transformer. The tap selector has two circuits per phase, in which one carries current in each tapping position. The moving contact of the selector enables the non current carrying circuit to be connected to the next upward or downward tap. The moving contacts are operated through geneva gear. The current is switched to the next tap by snap action diverter switch.

NGEF TRANSFORMER MOTOR DRIVE MECHANISM

    The NGEF motor drive mechanism is mounted externally on the transformer tank and is connected to the on load tap changer by shafts, worm gears and bevel gear. The OLTC can be operated electrically through motor drive panel using contactors and limit switch and manually hrough motor drive mechanism..

Popular Categories this Week

Headphones

Recommendation For You

View All Recommendations

Select at least 2 products
to compare