NSD570 1KHW001037R0001 ABB 19-inch 3U teleprotection system NEW

• Brand
  ABB
• Model
  NSD570
• Product Name
  Teleprotection Equipment
• Dimensions
  278 mm × 195 mm × 60 mm
• Weight
  1.5 kg
• Place of Origin
  Sweden
• HS Code
  8537101190
• Operating Temperature
  -25 °C to +55 °C
• Storage Temperature
  -40 °C to +70 °C
• Manufacturing part number
  KHW001037R0001
• Warranty
  12 MONTH
• Status
  NEW AND ORIGINAL

NSD570 1KHW001037R0001 (ABB Excitation Control Module) Input and output

Power Supply Input:

Control power input: 24 VDC auxiliary supply

Internal logic power is generated through the onboard power conversion circuit

Signal Input:

Analog input: 0-10 VDC and 4-20 mA signals for set-point values and process feedback

PT voltage transformer input: AC voltage sampling signal sourced from generator terminal voltage

CT current transformer input: AC current sampling signal for generator excitation current measurement

Digital binary input: 24 VDC discrete contact signals used for interlock, enable, trip and operating mode-switch commands

Signal Output:

Pulse trigger output: Thyristor firing pulses sent to the excitation power unit

Analog output: 4-20 mA and 0-10 VDC signals, transmitting excitation current and voltage measurement data to external HMI systems

Digital relay output: Dry-contact relay outputs for fault alarm, trip status and running-state indication

Fieldbus data output: Internal bus communication with the main ABB excitation controller for parameter interaction and status reporting

Power Consumption:

Maximum typical power consumption: 35 W

Compatibility & Application Information:

Applicable System: ABB NSD570 static excitation system

Supported Software: ABB Exciter Tool for parameter configuration and on-site fault diagnosis

Applicable Equipment: Excitation regulation for synchronous generators, including hydro-generators and turbo-generators

Application Note: This module works together with external PT/CT sensors and thyristor rectifier bridge to realize full closed-loop excitation control.

NSD570-1KHW001037R0001 (ABB Excitation Control Module) Operation Guide

Safety Pre-operation Notice

Only qualified electrical and excitation-system technicians are allowed to perform installation, wiring, commissioning and maintenance.

Implement LOTO lockout-tagout procedure before any hardware operation; cut off 24 VDC auxiliary power, PT secondary voltage and CT secondary current loops.

CT secondary circuit must never be open-circuited; PT secondary circuit must never be short-circuited.

Wear anti-static wrist strap when touching the module PCB board to avoid ESD damage to internal chips.

Do not hot-swap the module under live power condition.

Pre-installation & Wiring Inspection

1. Mechanical mounting: Install the module inside the dedicated excitation rack; keep enough ventilation space, avoid high-temperature, dusty and corrosive-gas environment.

2. Power circuit check: Confirm auxiliary control power is 24 VDC within tolerance range; verify polarity to prevent reverse-voltage damage.

3. Signal wiring check

PT secondary wiring: Correct polarity, reliable connection, equipped with short-circuit protection device.

CT secondary wiring: Correct polarity, firm terminals, reliable grounding, no open-circuit risk.

Analog input/output: 0-10 VDC, 4-20 mA signal cables use shielded twisted-pair wire; single-point grounding for shielding layer.

-Digital binary input: 24 VDC interlock, enable, trip and mode-switch contact signals correctly wired.

Pulse trigger output: Connect to thyristor rectifier unit trigger terminal correctly.

4. Tighten all terminal screws; check no loose wires or stray conductive debris inside rack.

Power-on Procedure

1. Confirm all field signal loops are correctly connected and short-circuit / open-circuit risks are eliminated.

2. Switch on 24 VDC auxiliary control power supply for NSD570 module.

3. Observe module power-on LED indicator: Power indicator lights up normally; no immediate fault alarm.

4. Connect PC with ABB Exciter Tool software via dedicated communication interface.

5. Establish communication link between software and NSD570 module; read initial factory parameters.

Parameter Configuration Operation via Exciter Tool

1. Upload factory default parameter set first; save backup file to local PC for archive.

2. Set system basic parameters: Generator rated voltage, rated excitation current, PT and CT transformation ratio.

3. Configure analog input channel range: 0-10 VDC or 4-20 mA according to actual field transmitter type.

4. Configure digital binary input function mapping: interlock condition, enable permission, trip signal, manual/automatic mode switch.

5. Adjust PID closed-loop regulation parameters for excitation control; set excitation-current limit, over-voltage protection threshold and related alarm thresholds.

6. Configure pulse-trigger parameters to match thyristor rectifier bridge characteristics.

7. Set analog output assignment: excitation current and excitation-voltage signal for external HMI monitoring.

8. Download completed parameter configuration into NSD570 module; perform parameter verification read-back to confirm download success.

9. Save final site-specific parameter backup file.

Static Commissioning (Generator static, no high-voltage energization)

1. Keep generator in stop status; main high-voltage switch remains open.

2. Inject simulated PT AC voltage and CT AC current signal by test instrument, verify sampling accuracy on Exciter Tool interface.

3. Simulate digital input contact ON/OFF status, check corresponding status feedback inside software.

4. Test analog output channels: software sets 4-20 mA /0-10 VDC set-point, measure actual output value with multimeter.

5. Execute pulse trigger test: check trigger pulse output to thyristor unit is normal without phase-missing or phase-disorder fault.

6. Simulate fault conditions: over-excitation current, interlock trip signal, observe module fault relay output and alarm log records.

7. Verify switching between automatic excitation mode and manual excitation mode without abnormal disturbance.

Dynamic Operation (Generator rotating condition)

1. Static commissioning items all pass; all protection interlock logic confirmed valid.

2. Start prime mover, generator reaches rated rotating speed.

3. Put NSD570 module into automatic excitation regulation mode; perform generator voltage build-up operation.

4. Monitor real-time data inside Exciter Tool: generator terminal voltage, excitation current, excitation voltage, all alarm status bits.

5. Complete voltage-adjusting test; verify excitation PID response performance, confirm no oscillation or overshoot.

6. Test mode switch between auto-mode and manual-mode under running condition.

7. All analog monitoring signals transmitted correctly to external HMI via analog output or fieldbus.

8. Record full set of on-site running parameters for later maintenance reference.

Daily Monitoring & Routine Maintenance

1. Regularly check module LED running indicators; record alarm information in time when fault LED activates.

2. Periodically connect Exciter Tool software to browse historical fault log and event record.

3. Keep rack ventilation system in good condition; regularly remove dust inside rack.

4. Check terminal-block tightness for power, PT, CT and signal cables during scheduled overhaul.

5. Store parameter backup files securely; new backup shall be saved after every parameter modification.

Fault Reset & Module Replacement Steps

1. When minor fault occurs: Eliminate root-cause fault condition first; execute software fault reset command or cycle 24 VDC auxiliary power for module soft reset.

2. For permanent hardware damage: Follow LOTO procedure to cut off all power and signal loops.

3. Replace with spare NSD570 1KHW001037R0001 module; download site-saved backup parameter file to new hardware.

4. Re-perform static sampling and logic verification before returning to online running status.

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