To Next Page

To Previous Page

START

ST1L1

ST1L2

ST1L3

TR1L1

TR1L2

TR1L3

ST1

TR1

START

ST2L1

ST2L2

ST2L3

TR2L1

TR2L2

TR2L3

ST2

TR2

TRIP

Comparator

UL1 < U1<

Comparator

UL2 < U1<

Comparator

UL3 < U1<

MinVoltSelector

Comparator

UL1 < U2<

Comparator

UL2 < U2<

UL3 < U2<

MinVoltSelector

Start t1

Trip

Output

Logic

Step 1

Start t2

Trip

Output

Logic

Step 2

Phase 3

Phase 2

Phase 1

Phase 3

Phase 2

Phase 1

Time integrator

tIReset2

ResetTypeCrv2

Voltage Phase

Selector

OpMode2

1 out of 3

2 out of 3

3 out of 3

Time integrator

tIReset1

ResetTypeCrv1

Voltage Phase

Selector

OpMode1

1 out of 3

2 out of 3

3 out of 3

UL1

UL2

UL3

TRIP

START

IntBlkStVal1

t1Reset

IntBlkStVal2

t2Reset

IEC05000834-2-en.vsd

Comparator

IEC05000834 V2 EN-US

Figure 110: Schematic design of Two step undervoltage protection UV2PTUV

9.1.8 Technical data

IP13001-1 v1

M13290-1 v15

Table 121: UV2PTUV technical data

Function

Range or value Accuracy

Operate voltage, low and high step (1.0–100.0)% of

UBase

±0.5% of U

Absolute hysteresis (0.0–50.0)% of

UBase

±0.5% of U

Internal blocking level, step 1 and step 2 (1–50)% of

UBase

±0.5% of U

Table continues on next page

Section 9 1MRK 505 394-UEN A

Voltage protection

240 Line differential protection RED650 2.2 IEC

Technical manual

Brand	ABB
Model	RED650
Category	Protection Device
Language	English

ABB RED650 User Manual

Table of Contents

Other manuals for ABB RED650

Questions and Answers:

ABB RED650 Specifications

Related product manuals