Nanjing Nanrui Jibao PCS9621 microcomputer comprehensive protection

NegotiableUpdate on 05/14

Model

Nature of the Manufacturer: Producers

Product Category

Place of Origin

Online Consult

Overview

Nanjing Nanrui Jibao PCS9621 microcomputer comprehensive protection $r $n operation alarm: $r $nl accident total signal $r $nl CT disconnection alarm $r $nl bus PT disconnection alarm $r $nl control circuit disconnection alarm $r $nl TWJ abnormal alarm $r $nl overload alarm $r $n $r $nl zero sequence section III alarm $r $nl grounding alarm $r $nl over temperature alarm $r $nl spring energy storage alarm $r $nl frequency abnormal alarm $r $nl light gas alarm $r $nl non electricity 2 alarm

Product Details

Nanjing Nanrui Jibao PCS9621 microcomputer comprehensive protection

8. protection function

8.1 Differential quick break protection

Differential speed determination value range	4.0Ie~14.0Ie
Current setting error	≤Current constant value×2.5%or 0.02Ie middleThe larger one
Action time of differential quick break protection	≤ 25ms(1.5×Differential speed determination value)

8.2 Ratio differential protection

Range of starting values for differential current	0.05Ie~1.5Ie
Current setting error	≤ Current constant value×2.5%or 0.02Ie Medium to large
Range of ratio differential braking coefficient	0.3~0.75
Range of second harmonic braking coefficient	0.05~0.35
Action time of ratio differential protection	≤35ms(2×Differential current starting value) No harmonic blocking

8.3 overcurrent protection

Current setting range	0.05×In ~ 30×In
Current setting error	≤Current constant value×±2.5%or ±0.01In Medium to large
Delay setting range	0.00s ~ 100.00s
Delay setting error	≤Delay fixed value×1% + 35ms（1.5X current settingValue)

8.4 Overcurrent inverse time limit protection

Starting current（Ip）Fixed value range	0.05×In ~ 4.0×In
Time multiplier setting range	0.05 ~ 100
Starting current setting	1.0×Setting
return coefficient	0.95
Current setting error	< 2.5%or 0.01×In Medium to large
Trip time error（1.2<I/Ip<30）	Max（5%Calculated value) and Max（2.5%Caused by current error The sum of calculation time errors,or 35ms

8.5 Negative sequence overcurrent protection

Current setting range	0.05×In ~ 4.0×In
Starting current setting	1.0×Setting

return coefficient	0.95
Current setting error	< 2.5%or 0.01In Medium to large
Time setting range	0 100s
Time setting error	< Time fixed value×1%＋50ms

8.6 Nanjing Nanrui Jibao PCS9621 microcomputer comprehensive protection

Zero sequence overcurrent protection

Current setting range	0.05 ~ 30A(External)
Current setting error	≤Current constant value×±2.5%or ±0.02A Mid term comparisonThe big one
Delay setting range	0.00s ~ 100.00s
Delay setting error	≤Delay fixed value×1% + 35ms

8.7 Overload protection

Current setting range	0.05×In ~ 30×In
Current setting error	≤Current constant value×±2.5%or ±0.01In Medium to large
Delay setting range	0.00s ~ 100.00s
Delay setting error	≤Delay fixed value×1% + 35ms

8.8 Overcurrent acceleration protection

Current setting range	0.05×In ~ 30×In
Current setting error	≤Current constant value×±2.5%or ±0.01In Medium to large
Delay setting range	0.00s ~ 100.00s
Delay setting error	≤Delay fixed value×1% + 35ms

8.9 Zero sequence acceleration protection

Current setting range	0.05 ~ 30A(External)
Current setting error	≤Current constant value×±2.5%or ±0.02A Mid term comparisonThe big one
Delay setting range	0.00s ~ 100.00s
Delay setting error	≤Delay fixed value×1% + 35ms

8.10 voltage protection

Zero sequence overvoltage setting range		2 ～200V
Low voltage setting range		2 ～100V
Overvoltage setting range		2 ～ 160V
Voltage setting error		< 2.5%or 0.10V Medium to large
Time setting range	0.1～100s
Action time error		≤Delay fixed value×1% + 35ms

8.11 overheat protection

Range of reference current setting	0.05×In ~ 3×In
Current setting error	≤Current constant value×±2.5%or ±0.01In Medium to large
Time constant range	10s ~ 6000s
Range of heat dissipation time constant	0.1s ~ 30000s
Delay setting error	≤Delay fixed value×1% + 35ms
Thermal overload coefficient	1~3

8.12

Non electricity protection

Protection trip long delay	0~4000s
Protection trip short delay	0~100s
Delay setting error	≤Delay fixed value×1% + 35ms

8.13 Low frequency load shedding protection

Frequency setting range	45~50Hz
Frequency setting error	±0.01Hz
DFDT Closed lock value range	0.3～20Hz/s
Delay setting range	0.00s ~ 100.00s
Delay setting error	≤Delay fixed value×1% + 35ms

8.14

recloser

Delay setting range	0.1s ~ 10.0s
Delay setting error	≤Delay fixed value×1% + 35ms

9. management function

9.1 Fault recording and event recording

Fault recording and fault event reporting	Before starting the entire set of startup records 2 One cycle, after startup 6 Waveform of one cycle
	Before starting the protection action record 2 One cycle, after startup 6 aZhou Bo, before the action 2 One cycle After the action 6 A cycle and disturbances in the middle 16 A waveform of one cycle.
	Recyclable recording 64 Secondary protection action report64 Secondary fault recording.
正常波形	recordable 5 A waveform of one cycle for recording or polarity verification.
abnormal alarm	Recyclable recording 1024 Abnormal alarm and device self-test report.
Switching displacement	Recyclable recording 1024 Secondary switch displacement report. Switching quantity change packageIncluding various inputs and outputs Status changes, etc.