Hydro Electric

Turbines

Manufactured for high head with horizontal arrangement with single and multi jet configuration. The control mechanism can be either deflector or spear and deflector as required by the customer. Turbine efficiency is high irrespective of load variation. Due to its simple construction, the maintenance of the Turbine is very easy.

Francis Turbine

Manufactured for low and medium head, this turbine can be supplied in two configurations i.e. Monoblock, a two bearing system in which the turbine runner and flywheel are mounted on generator shaft. The other one being Dual-block in which Turbine and Generator have their own bearings thus making it a four bearing systems. The Hydel set can be offered in vertical or horizontal axis orientation.
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Turbines-Auxiliaries
Governor
‘Jyoti’ Governors are capable for single / double regulation of turbine. Two types of Governors i.e. HYDRO-MECHANICAL & ELECTRONIC   are designed, manufactured and supplied

	Hydro Mechanical Governor Hydro-mechanical Governor with motorized pendulum assembly for speed sensing and motorized oil pumping unit for controls up to 100 KW has been designed and manufactured at Jyoti Ltd. and supplied with many Hydel sets.
	Electronic Governor Keeping with the strides made in the field of Electronics, Jyoti has developed a microprocessor based, Electronic Programmable Digital Governor. The governor has successfully undergone extensive field tests. The governor is running satisfactorily at various sites. It can also perform additional governing and control functions such as

    Level regulation 
    Central governing & control system 
    Flow regulation
    Storage volume regulation
    Power regulation.

The main advantage of Electronic Governor is its capability to change control parameters ‘on-line’. This means when turbine is operating, control parameters can be changed simultaneously. This is a sophisticated governor, which can be interfaced with PC/PCL for remote and tele-opeation.

Turgo Impulse Turbine

This turbine is suitable for medium head. Due to its small size and higher specific speed compared to equivalent Pelton Turbine, making it the most economical one. The construction and control are similar to Pelton Turbine.

Horizontal Tubular Turbine

This turbine is most suitable for canal drops. There are three types of 'JYOTI' Tubular Turbine

	Kaplan (Both runner  blades and guide vanes  adjustable)
	Semi Kaplan, Syphontype (Guide  vanes fixed and runner  blades adjustable)
	Propeller (Guide vanes adjustable and runner blades fixed)

Kaplan turbines are used where head and discharge variations are high. Propeller turbines are used where head and discharge variations are low and semi Kaplan turbines are used where head and discharge variations are high in comparison to propeller turbines.

Inlet Valves

Developed at Jyoti's R & D, these valves are used for emergency shutdown of the unit. Two types of valves are manufactured at Jyoti.

Butterfly Valve
It is used for head up to 250 meters and are manufactured in solid disc or bi-plan type construction. Opening of the valve is by Oil pressure and closing with the help of dead weight.

Spherical Valves
Mainly used for head above 200 M and is opened by oil pressure and closed by dead weight.