Need a custom part? Send us your drawing, sample or part number — we'll reply with a quotation within 24 hours. Request a quote →

Slip Rings

Slip rings for hydro power generators

Part No. Slip rings for hydro power generators

Steel machined or forged rings (from 600mm to 2500mm diameter) Insulated studs (copper, bronze or steel) and spacer Support ring / auxiliary shaft (length up to 1300mm) Assembly and finish machining Sleeve assembly (connection from rings to rotor coils) Varnish paint Inspection and tests report following OEMs requirements (ultrasonic, hardness, tensile strength, chemical analysis, insulation resistance, hi-pot up to 60kV, dimension and visual)

Dimensions	Large-diameter rings per unit — hydro slip ring diameters up to 2,500 mm (98″), brush rocker
Application	Power slip rings for hydro power generators — the dynamic interface between rotating and static parts transferring rotor excitation DC current from the static exciter to the generator field winding: Francis, Kaplan and Pelton turbine generator uni
Connection	Rings mounted (keyed/insulated) on the rotor shaft; stationary brushes in rockers feed exciter DC to the field winding t

Compatible Models

Francis turbine generator units (hydro) Kaplan / propeller turbine generator units Pelton (impulse) turbine generator units Example class: SFW1000-6/1180 (1 000 kW rated excitation current 263 A) — reference only verify Small hydro units (50 kW–1 MW) and large units up to 50 MW (exciter collector systems)

Request a Quote Related Products

48h Sample Dispatch 60+ Countries Served Datasheet Included

Technical Specifications

Power Slip Rings for Hydro Power Generators — Family Specifications
Specification	Value
Product Type	Power slip rings for hydro power generators (exciter collector rings)
Material	Copper rings + electrographite/metal-graphite brushes
Ring Diameter	Up to 2,500 mm (98 in) per Mersen; per unit
Rocker Ring	Up to 3,000 mm (118 in)
Function	Transfers rotor excitation DC current (static exciter → field winding)
Application	Francis / Kaplan / Pelton turbine generator units; 50 kW – 50 MW class
Excitation Current	Per unit (ref: 1 MW unit ≈ 263 A)
Excitation Voltage	Per unit — low DC typical
Speed	75–1000 rpm typical (large units <500 rpm)
Dimensions	Per unit — confirm OD / bore / width / ring count

* Family-level listing based on Mersen hydro slip-ring engineering data and hydro generator exciter practice. Verify per generating unit.

Compatible Models

This Slip rings for hydro power generators is designed as a direct replacement for the following machine models and series:

Not sure if it fits your machine? Send us your equipment model, motor type or original part number — our engineers will confirm compatibility and advise the correct grade. Ask an engineer →

Description

Overview

Power slip rings for hydro power generators — the dynamic electrical interface that transfers rotor excitation DC current between the static exciter and the rotating generator field winding. Built as large-diameter copper collector rings with brush rockers, they are among the most critical parts affecting brush performance and generator reliability.Mersen Türkiye