Digital static thyristor activator

It is intended for management of excitement at start-up, synchronous work and in emergency operation of synchronous motors with brush system of excitement with a power from 200 to 12500 kW inclusive. The activator is executed according to bridge or zero schemes of straightening with power supply from the alternating current main via the power coordinating transformer.

Tipoispolneniya

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Designation	Rated current, And	Rated secondary current of the transformer of current of the stator, And
SPVD-M-315-1 UHL4	315	1
SPVD-M-315-5 UHL4	-	5
SPVD-N-315-1 UHL4	-	1
SPVD-N-315-5 UHL4	-	5
SPVD-MR-315-1 UHL4	-	1
SPVD-MR-315-5 UHL4	-	5
SPVD-NR-315-1 UHL4	-	1
SPVD-NR-315-5 UHL4	-	5

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Key parameters

Operating mode of the activator – long.

The activator, depending on a tipoispolneniye, is executed according to the bridge or zero scheme of straightening, with a reserve control system or without it.

The power part of the activator is powered from the three-phase alternating current main of 380 V, with a frequency of 50 Hz via the power coordinating transformer. Parameters of the power coordinating transformer are defined by nominal parameters of a winding of excitement of the engine.

Technical characteristics of the activator

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Name of parameter		Value
Rated current of excitement: - for the bridge scheme of straightening, And - for the zero scheme of straightening, And		315 315
It is long an admissible overload on excitement current: - for the bridge scheme of straightening, And - for the zero scheme of straightening, And		315 370
The rated straightened voltage, In		36_x001E_230
Frequency rate of a forsirovka on current, the lake e., not less		2
The maximum permissible duration of a forsirovka, with		60
The rated voltage of a direct current of chains of management, In		220
Consumption of power on chains of management, W, no more		32
Rated voltage on chains of voltage measurement of the stator, In		100
Rated secondary current of the transformer of current of the stator, And		1 or 5
The rated voltage of synchronization of alternating current, In		380
Range of regulation of current of excitement		1:10
Size of a relative error of regulation of current of excitement, %, no more
- range 1:1			2
- range 1:2			5
- range 1:10			10
The ARV modes (ARV – the automatic regulator of excitement): - stabilization of current of excitement - - regulation on stator tension - - regulation on a corner? - - regulation on tension of the stator and a corner?.	-
Cooling of thyristor modules	air natural
Weight, kg, no more	350 -
Dimensions (VKHDKHG), mm	2160x800x600
Degree of protection in accordance with GOST 14254-96	IP21, IP41, (IP54 – on to coordination with the customer)

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The carried-out functions

The activator provides:

• Automatic giving of excitement at direct, reactor or frequency launch of the engine in function:

- frequencies and phases EMFs of sliding -

- stator current -

- frequencies, phases EMFs of sliding and current of the stator -

- speeding up of excitement for sure retraction of the engine in synchronism -

- speeding up of excitement for deduction of the engine in synchronism at sharp changes of the moment of resistance on an engine shaft.

• Regulation of current of excitement on one of the following laws:

- stabilization of current of excitement -

- regulation of current of excitement on stator tension -

- regulation of current of excitement on maintenance of the set corner (cos power factor?) -

- regulation of current of excitement on tension of the stator and on a corner -? -

- shutdown of the engine at emergence of the emergency modes -

- clearing of the field of a rotor by transfer of the rectifier to the invertor mode at normal and emergency shutdowns of the engine -

- automatic decrease in current of excitement at a rotor overload on current and transition to the mode of cooling of a rotor -

- continuous control of resistance of isolation of a rotor -

- giving of current of excitement at the switched-off engine in the test mode, for check of operability of power part and system of management -

- indication of operating modes, reasons of accidents or preventions -

- automatic transition to management from a reserve set in case of refusal the main control system, with simultaneous blocking of the operating signals of the main set -

- remote control of excitement on the consecutive channel -

- an ostsillografirovaniye of parameters of operation of the engine at the request of the operator -

- record of oscillograms of emergency events -

- maintaining log.

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Protection

In the activator the following protection are realized:

- maximum and current protection (program and hardware) -

- protection against an inadmissible overload of a rotor (time - current protection) -

- protection against excitement loss -

- protection against prolonged start-up -

- protection against the asynchronous course -

- protection against inadmissible decrease in resistance of isolation of a rotor (protection against short circuit of a chain of excitement on the case) -

- protection against malfunction the block - contact of the statorny switch -

- thermal protection of tiristor.

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Delivery set

Are included in the package of delivery:

- SPVD-HH-315-H UHL4-activator

- the guide to operation -

- the passport -

- certificate of conformity (copy).

In coordination with the customer delivery of the coordinating transformer is possible.