Description
General
PST2230 Receiving Substation Module with two HV-incoming lines, HV-busbars arrangement, step-down transformer, two middle voltage bus bars and two outgoing feeders including a complete switch board with instruments and corresponding protection relays. Three or more incoming lines and three or more outgoing lines can be delivered as option as well as extra distribution transformers. Phases L1, L2, and L3 are accessible on the middle voltage bus bars and feeders via 4 mm safety sockets, enabling to connect PST 2230 directly to a network or to a generator as well as to external loads.
All breakers and isolators are operated by contactor relays via a logical interlocking and tripping system to avoid accidents that may occur due to accidental connections. PST2230 contains fault simulator with the ability to simulate variable short circuit and earth faults. The module includes 4, 8-pole Transfer Blocks for easy signal transfer between different compatible modules.
The step down transformer is a 2 kVA Yyn + d transformer with an On-Line Tap Changer (OLTC) for dynamic voltage regulation via 2.5% incremental tapping’s from 95% to 105 % on the secondary winding. The step-down transformer also includes a delta winding to help protect the upstream equipment in unbalansed load conditions.
Possible earthing methods:
- Solid or resistive earth
- Floating earth
- Petersen coil (multiple)
The step down transformer can be operated individually and all windings are available via terminals on the front. Current transformers are positioned around the transformer and the connections are available from the front panel.
Technical Specifications:
Digital Instruments:
Multiple 3-ph Power Energy Meters displaying 32 values for U, I, P, Q, S, cos phi is used for:
- Dual incoming HV lines
- Step-down Yyn + d transformer
- Dual outgoing MV feeders
Voltmeter instrument for measuring between bus bars on incoming power. Measurement point selectable by means of a switch.
Number, type and configuration of the ABB Intelligent Electronic Divices (IED) are depending on the complexity or Level that is desired.
PST2230 IED Level 1
IED Transformer Protection (1 unit – RET630):
- Differential Protection
- Over/Under Voltage Protection
- Frequency Protection (Over/Under/Gradient)
- Negative Sequence Overcurrent Protection
- Neutral Point Earth Fault Protection (Residual Over-Current)
- Neutral Point Earth Fault Protection (Residual Over-Voltage)
- HV / MV Overcurrent Protection
*1 Protection units in total
PST2230 IED Level 2
IED Transformer Protection (1 unit – RET630):
- Differential Protection
- Over/Under Voltage Protection
- Frequency Protection (Over/Under/Gradient)
- Negative Sequence Overcurrent Protection
- Neutral Point Earth Fault Protection (Residual Over-Current)
- Neutral Point Earth Fault Protection (Residual Over-Voltage)
- HV / MV Overcurrent Protection
IED Incoming HV Line 1 & 2 Multi-Protection (2 units – REF615):
- Directional Three-Phase Overcurrent Protection
- Directional Earth Fault Protection
- Three-Phase Overcurrent Protection
- Non-Directional Earth Fault Protection
- Negative Sequence O/C Protection
- Phase Discontinuity Protection
- Negative Sequence Overcurrent Protection
- Auto Reclosing Function
IED Outgoing Feeder 1 & 2 Multi-Protection (2 units – REF615):
- Three-Phase Overcurrent Protection
- Negative Sequence Overcurrent Protection
- Directional Earth Fault Protection
- Non-Directional Earth Fault Protection
- Phase Discontinuity Protection
- Auto Reclosing Function
*5 Protection units in total
PST2230 IED Level 3
IED Transformer Protection (1 unit – RET630):
- Differential Protection
- Over/Under Voltage Protection
- Frequency Protection (Over/Under/Gradient)
- Negative Sequence Overcurrent Protection
- Neutral Point Earth Fault Protection (Residual Over-Current)
- Neutral Point Earth Fault Protection (Residual Over-Voltage)
- HV / MV Overcurrent Protection
IED Incoming HV Line 1 & 2 Multi-Protection (2 units – REF630):
- Distance Protection
- Directional Earth Fault Protection
- Directional Three-Phase Overcurrent Protection
- Non-Directional Three-Phase Overcurrent Protection
- Non-Directional Earth Fault Protection
- Phase Discontinuity Protection
- Negative Sequence Overcurrent Protection
- Reverse Power Protection
- Auto Reclosing Function
IED Outgoing Feeder 1 & 2 Multi-Protection (2 units – REF615):
- Three-Phase Overcurrent Protection
- Negative Sequence O/C Protection
- Directional Earth Fault Protection
- Non-Directional Earth Fault Protection
- Phase Discontinuity Protection
- Negative Sequence Overcurrent Protection
- Auto Reclosing Function
*5 Protection units in total
Included in all levels:
IEC61850 GOOSE device information sharing capability
Easy Parameter Setting Via Web Browser
Disturbance Recording for in-depth fault analysis
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Measurements |
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Cubicle |
WxHxD |
1560x1900x1075 mm |
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Weight |
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360 kg |
Power Supply
400V 3-phase, 16A. Each module connects 5 pole (L1, L2, L3, N, Earth) with CEE connection.
[pdf-embedder url=”https://www.tercosweden.com/wp-content/uploads/2019/03/PST2200-Power-System-Simulator-Lab_Lres-1.pdf” page=”12″ title=”PST2200 Power System Simulator Lab”]
