Measurement
Micropro displays the electrical parameter like Current values, instant current value (RMS)
including ground fault current, Creepage current with measuring precision of 5% (at above
In) & 1.5% (at 2In) and also store the maximum value in maximeter.
Phase to phase & phase to neutral Voltage measurement with 0.5% precision and also store
the maximum value in maximeter.
Phase sequence
Phase Unbalance
Active Power, Reactive Power & Apparent power and also store the maximum value in
maximeter.
Power factor
Electrical Energy
Calculation of current and voltage total harmonic distortion (THD)
Current and voltage and power fundamentals
Current and voltage harmonics up to the 31st order
Communication option
Micropro2 7.1 can be connected with the protocol with the help of Rs 485/232 to converter.
Communication gives facility to perform following action:
To read & set all functions parameters remotely
To transmit all the measurements
To give signals for the tripping & alarms
To give maintenance history (Number of operation & contacts wear % etc)
An event log and a maintenance register, stored in Micropro2 7.1 memory are also available
locally.
The voltage & current waveform can be captured to analyze the power quality waveform
Histories
The last 8 trips, alarms & ACB status are recorded in to 3 separate files that may be displayed on
screen.
Tripping history
- Type of faultb)Date & time
- Values measured at the time of tripping
Alarm histories
- Type of fault
- Date & time
- Values measured at the time of alarm
ACB status
It will give information about the ACB tripping locally or remotely etc.
Maintenance indicators
Micropro2 7.1 gives information about the maintenance parameters of ACB.
Total no of mechanical operation counter.
Contact wear
MCR & HSISC Protection
MCR & HSISC is the instantaneous protection of the breaker itself. When limit exceeding fault
current is detected, the breaker will send out a trip command within 10mS. MCR protects the
making capacity of the breaker and prevents switch damage caused by making current
exceeding the making capacity. The protection is enabled instantaneously
(
within
100ms
)
after closing and opening. HSISC is a breaker protection which prevents the breaker
from carrying a persistent through fault current greater than it’s through fault capability. It is
effective after 100ms after breaker closing. Micropro2 7.1 can do the analysis of power quality
including calculation of harmonics and the fundamentals. Voltage & current Wave form can be
analyzed for any event in power supply system. It gives an enhanced alarm programming to
analyze and track down the disturbance in the power network system.
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Micropro 2 - 7.1
Pick up
Inverse Trip Current Is = Off +1.5 ~ 15Ir
Fixed Time Trip Current Is = Off +1.5 ~ 15Ir
Fixed Time Delay Time Tsd
0.1 ~ 0.4 S
OFF+1.0~20In
Short Circuit
Instantaneous
Over Load Protection
Zone Selectivity Interlock
Available
Earth Fault Protection
OFF+0.2
~
1.0xIn
Earth Fault Zone Selective
Interlocking
Available
Earth Fault
Pick up
50%, 100%, 160%, 200%, Off
N Protection
Off 0.4 ~ 1.0In
Pick up
SI, VI, EI(G), EI(M), HV, I2T
Protection Curve
Instananeous, 10 m, 20m, 30m, 45m, 1h, 2h, 3h
Thermal Memory
Delay
C 01 ~ C16 ( rated at 1.5, 6 & 7 Ir)
Inverse Curve Multiple Cr
1.5
~
6
,
+OFF
,
Delay Tg
0.1
~
1S
,
Earth Leakage Protection I n
Δ
0.5
~
30.0A
Delay Set Value
0.1~40.0S
Earth Leakage
Delay Time T
Δ
n(S)
Instantaneous
,
0.06
,
0.08
,
0.17
,
0.25
0.33
,
0.42
,
0.5
,
0.58
,
0.67
,
0.75
,
0.83
Current Unbalance Protection
5%~60%
Return Value
5%~Start Value
Return Delay
10~200S
Performance
Alarm/Break/Close
Protection Start Set Value
100V
~
Return Value
Protection Delay Return Time
0.2 60S
~
Under Voltage Protection Parameters
Protection Delay Set value
0.2 60S
~
Protection Return Value
Start Value
~
1200V
Protection Alarm DO Output
Set one of the DO of the signal unit as
“Under Voltage Alarm”. Protection Performance
Alarm/Break/Switch Off
Micropro 2 - 7.1
Intelligent Release
28
C&S Electric Limited
29
C&S Electric Limited
Intelligent Release
W Nmaster 2
i
W Nmaster 2
i
Summary of Contents for WiNmaster 2
Page 1: ...Air Circuit Breaker Ro S H Compliant W Nmaster 2 i 630A 3200A www cselectric co in ...
Page 3: ......
Page 5: ...6 C S Electric Limited Complete Modular construction ...
Page 7: ...Fixed Type Drawout Type 8 C S Electric Limited Available in both Fixed Drawout version ...
Page 13: ...RoHS Compliant 14 C S Electric Limited ...
Page 15: ......
Page 16: ......
Page 25: ......
Page 35: ......
Page 36: ...Micropro 2 3 1 Micropro 2 4 1 37 C S Electric Limited Characteristics Curve W Nmaster2 i ...
Page 50: ...51 C S Electric Limited ...
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