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Grid Code Table > Tech Requirements > Flashcards

Tech Requirements Flashcards

1
Q

Was there any change in frequency versus time requirements from the 2006 code and 2024 code?

A

No

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2
Q

Frequency range for continuous operation and rated output/pf.

A

By Grid Code - 49-51 Hz
NC RfG requires down to 47.5 for 30 min

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3
Q

2% of 50 Hz

A

1 Hz

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4
Q

How do the Grid Code frequency requirements for STG compare to WEC’s?

A

Much more stringent than WEC’s.

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5
Q

What if the required power factor profile called?

A

Q over Pmax versus voltage curve

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6
Q

What Section is “Technical requirements and recommendations for equipment….”

A

3.3

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7
Q

What is active power primary control?

A

Normal governor load-frequency control.

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8
Q

What is the function of active power tertiary control?

A

To control various generators in the best possible way, in terms of economic considerations.

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9
Q

What is the function of active power secondary control?

A

To restore the SYSTEM FREQUENCY to its set-point value.

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10
Q

How fast is primary control?

A

a few seconds

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11
Q

After a frequency disturbance, is the frequency of the system returned to normal?

A

No. The frequency stabilizes but differs from the frequency set-point because of the DROOP OF THE GENERATORS.

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12
Q

How fast is secondary control?

A

15 to 30 seconds

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13
Q

How is secondary control achieved?

A

Generally automatic

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14
Q

How is tertiary control achieved?

A

Central dispatch

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15
Q

What is the range for required primary control.

A

± 5% of Pmax

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16
Q

What is “aFRR”?

A

automatic Frequency Restoration Reserve

17
Q

Synonym for aFRR?

A

Secondary Reserve

18
Q

Physically, what are the primary and secondary controllers?

A

primary controls - the governors on the turbines
secondary controls - the supervisory computer systems

19
Q

What is the ARNE system?

A

Automatic voltage and reactive power control using AVR of generator and collaborating with master system ARST

20
Q

What is the ARST system?

A

Automatic voltage control system as a master for ARNE and using on-load tap changer of transformer

21
Q

What is SORN?

A

Area voltage control system for remote supervision ARNE and ARST

22
Q

What is section 3.8?

A

3.8. Technical requirements for existing PGMs

23
Q

What is Section 4?

A

TECHNICAL REQUIREMENTS FOR ANCILLARY INFRASTRUCTURE

24
Q

What is the WIRE system?

A

energy market information exchange system

25
Q

What is FCR?

A

Frequency Containment Reserve
Grid-level algorithm for frequncy control

26
Q

What is FRR?

A

frequency restoration reserves

27
Q

Difference between FCR and FRR?

A
28
Q

ICT?

A

data transmission and information exchange

29
Q

Reg 2196?

A

aka - NC ER
Network Code on Emergency Restoration

30
Q

What is SOWE (sova) system?

A

operational cooperation system with balancing service providers (SOWE) – dedicated to exchange operational and planning information

31
Q

What is MBS?

A

Metering and Billing System

32
Q

BMU?

A

balancing mechanism unit

33
Q

Description of BMU.

A

the smallest grouping that can be independently controlled

34
Q

What is Section 3.3.1?

A

Tech Requirements for PGMs Connected at 110 kV or higher

35
Q

What is Section 3.6?

A

Technical requirements for active power control

36
Q

What does IRESP and NCRfG say about LFSM?

A

Nothing that I have found.

Grid Code Table (4 decks)

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