Machines

SELF-EXCITED SYNCHRONOUS GENERATORS

	GENERATORS TYPE GDPBa, GTNSa
	GENERATOR TYPE GCf 74
	GENERATORS TYPE GCf, GCh, GTN
	GENERATORS TYPE GCk

GENERATORS TYPE GDPBa, GTNSa

APPLICATION

Self-excited synchronous generators of small power are provided for generating of AC electric energy in generating sets.

TECHNICAL CHARACTERISTIC

Single-phase generators of type GDPBa are brush-less machines with built-in voltage regulator (additional windings co-operating with a condenser fixed outside the generator).

Three-phase generators of type GTNSa are brush machines with a voltage regulator located in a separate box. In the box there are also: voltmeter, overload switch and 1-phase and 3-phase socket.

Way of coupling with a driving motor depends on motor connection. Fixing of generators: by means of flanges or flanges with feet support.

TECHNICAL PARAMETERS

Rotational speed:  3000 rpm

Frequency:             50 Hz

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GENERATOR TYPE GCf 74

APPLICATION

Three-phase self-excited generator type GCf74 serves for generating the electric energy in AC generating sets and is provided for operation on land.

TECHNICAL CHARACTERISTIC

This machine is equipped with a built-in system for automatic regulation of voltage. It is adapted for operation in horizontal position with feet fixing. It is connected with a motor by means of a coupling.

TECHNICAL PARAMETERS

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GENERATORS TYPE GCf, GCh, GTN

APPLICATION

Three-phase self-excited synchronous generators co-operating with voltage regulation systems type WS are provided for generating the AC electric energy in generating sets installed on ships of unrestricted sailing range. They can be applied in generating sets working on land, too.

TECHNICAL CHARACTERISTIC

Generators are adapted for driving by means of combustion-piston engines connected with them by a coupling. They are manufactured in two versions of fixing - on feet or with flange on feet support.

Voltage regulation system type WS co-operating with the generators are produced in following executions:

WS        - in a housing (protection degree IP22); adapted for fixing on a support construction

WS...T   - without housing (protection degree IP00); adapted for  building-in

TECHNICAL PARAMETERS

Voltage:                  3x400/231V

Frequency:              50Hz

Rotational speed:   1500 rpm

On special requests we make generators for voltage 3x450/260V and frequency 60Hz (1800 rpm). In such case the generator power can be increased by 17% in ratio to the frequency 50Hz.                                

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GENERATORS TYPE GCk 

APPLICATION

Self-excited, brush-less synchronous generators of increased moment of inertia, which co-operate with voltage regulation thyristor systems type RNGY41 are provided for generating the AC electric energy in generating sets installed on ships of unrestricted sailing range. They can be applied in moveable and stationary generating sets working on land.

TECHNICAL CHARACTERISTIC

Thanks to their features the generators are widely applied in generating sets, which are used in difficult operating conditions.

They have small values of transient synchronous reactance thanks to special shape of induction field in an air-gap forming a trapezoid. This allows for limiting the value of voltage changes on generator terminals after sudden load switching on.

In generators of type GCk moment of inertia of a rotating part is ~10 times bigger in ratio to the inertia moment of the generators made on traditional way. It eliminates irregularity of the combustion engine running without necessity to use a flywheel.

Generators of type GCk are made in several construction versions ensuring high universality of a product:

GCkF265 - 1-bearing construction; flange fixing; direct coupling with a driving motor

GCkL94   - 1-bearing construction; flange fixing with feet support; direct coupling with a driving motor

GCk94     - 2-bearing construction; fixing on feet, connection with a driving motor by means of a coupling

GCk../21 - generator with a regulator

Voltage regulation systems type RNGY41 co-operating with generators are made in several construction versions depending on application of the generating set:

RNGY41 S  - regulator provided for operation in stationary generating sets; it is located in metal housing adapted for hanging

RNGY41 W - regulator adapted for assembly into a switchboard; it is made as a board equipped with individual sub-assemblies; without housing

RNGY41R   - regulator with a distribution-measure part for consumers and a control part for driving motors.

TECHNICAL PARAMETERS

On special requests we make generators for voltage 3x220V, 50Hz.

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