nader NDW3 Series Manual page 21

3.2 Controller Functions
Functional items
Digital tube numbers and symbols
display
Display
interface LCD panel symbols and graphics
display
Overload long-time delay protection
Overload thermal memory
Overload pre-alarm/alarm output
Short circuit short-time delay
protection
Short-time delay thermal memory
Short circuit instantaneous
protection
Ground protection (differential type)
Grounding alarm/alarm output
Current leakage
protection/alarm/alarm output
Neutral wire protection
Current unbalance
protection/alarm/alarm output
Protectio
MCR
n
Load monitoring/alarm/alarm output
function
Undervoltage protection
/alarm/alarm output
Overvoltage protection /alarm/alarm
output
Voltage unbalance
protection/alarm/alarm output
Phase sequence
protection/alarm/alarm output
Underfrequency
protection/alarm/alarm output
Overfrequency
protection/alarm/alarm output
Current required value
protection/alarm/alarm output
Reverse power
protection/alarm/alarm output
Current measurement (phase pole, N-
pole, grounding)
Voltage (phase voltage, circuit
voltage, voltage unbalance rate)
Phase sequence detection
Measuri
Frequency measurement
ng
Required value measurement
function
(current)
Required value measurement (power)
Power measurement (active power,
reactive power, apparent power)
Power factor measurement
Internal & confidential file
文件编号:NDT2920213
▲/▲/▲
第 21 页 共 149 页
NWK22
NWK21 NWK21/V
NWK3
NWK31/V
NWK31
√ √
— —
√ √
√ √
√/▲ √/▲
√ √
√ √
√ √
√ √
√/▲ √/▲
— — √/√/▲
√ √
√/—/— √/—/— √/√/▲
√ √
▲/▲/▲
√/√/▲
— —
— —
— —
— —
— —
— —
— —
— —
√ √
— √
— —
— √
— —
— —
— √/—/—
— √
文件版本:17
NWK22/
NWK22/V
NWK32/V NWK32/
2
— —
√ √
√ √
√ √
√/▲ √/▲
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√/√/▲ √/√/▲
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√ √
√/√/▲ √/√/▲
— √/√/▲ √/√/▲
— √/√/▲ √/√/▲
— √/√/▲ √/√/▲
— √/√/▲ √/√/▲
— √/√/▲ √/√/▲
— √/√/▲ √/√/▲
— √/√/▲ √/√/▲
— — √/√/▲
√ √
— √
— √
— √
— √
— —
— —
— —
P
P
—
√
√
√
√/▲
√
√
√
√
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√
√
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