概述
数据手册LTRPN-412PJW/T 概述
Power Transducer Series LT-UNIT
LTRPN-412PJW/T 数据手册
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PDF下载MODEL: LTRPN
2: 220 V AC
Power Transducer Series LT-UNIT
4: 220 V / 380 V AC (3-phase/4-wire only)
VAR TRANSDUCER
(self-powered)
[3] CT INPUT (unbalanced load)
Current
1: 1 A AC
2: 2 A AC
5: 5 A AC
Functions & Features
• Providing a DC output signal in proportion to AC reactive
power
• DC output containing little ripple is ideal for computer
input
• "Time division multiplication" method accepts distorted
waveforms
[4] OUTPUT SIGNAL POLARITY
P: Negative in lag, positive in lead
• Isolation up to 2000 V AC
• High-density mounting
M: Negative in lead, positive in lag
• Conforms to IEC 60688
[5] OUTPUT
• No auxiliary power supply required
Current
A: 4 – 20 mA DC (Load resistance 500 Ω max.)
FW: -10 – +10 mA DC (Load resistance 1000 Ω max.)
GW: -1 – +1 mA DC (Load resistance 10 kΩ max.)
JW: -5 – +5 mA DC (Load resistance 2000 Ω max.)
Z: Specify current (See OUTPUT SPECIFICATIONS)
Voltage
Typical Applications
• Centralized monitoring and control of power management
system in a manufacturing facility or building
72
(2.83)
6: 1 – 5 V DC (Load resistance 5000 Ω min.)
1W: -10 – +10 mV DC (Load resistance 10 kΩ min.)
2W: -100 – +100 mV DC (Load resistance 100 kΩ min.)
3W: -1 – +1 V DC (Load resistance 1000 Ω min.)
4W: -10 – +10 V DC (Load resistance 10 kΩ min.)
5W: -5 – +5 V DC (Load resistance 5000 Ω min.)
0: Specify voltage (See OUTPUT SPECIFICATIONS)
111
(4.37)
143 (5.63)
mm (inch)
[6] OPTIONS (multiple selections)
Terminal Cover
blank: Without
MODEL: LTRPN–[1][2][3][4][5][6]
/T: With
Other Options
ORDERING INFORMATION
• Code number: LTRPN–[1][2][3][4][5][6]
Specify a code from below for each of [1] through [6].
(e.g. LTRPN-115PA/T/Q)
blank: none
/Q: Option other than the above (specify the specification)
SPECIFICATIONS OF OPTION: Q
COATING (For the detail, refer to M-System's web site.)
/C01: Silicone coating
• Special output range (For codes Z & 0)
• Specify the specification for option code /Q
(e.g. /C01)
/C02: Polyurethane coating
• Use Ordering Information Sheet (No. ESU-3355).
/C03: Rubber coating
[1] CONFIGURATION
1: 3-phase / 3-wire
GENERAL SPECIFICATIONS
Connection: M4 screw terminals (torque 1.2 N·m)
4: 3-phase / 4-wire
Screw terminal: Chrome-plated steel
Housing material: Flame-resistant resin (black)
Isolation: Voltage input to current input to output
Computation: Time division multiplication
Overrange output: Approx. -10 to +120 % at 1 – 5 V
[2] VT INPUT (balanced load)
For 3-phase / 4-wire, phase voltages (e.g. 110 V / √3 ) are used.
1: 110 V AC
LTRPN SPECIFICATIONS
ES-3358 Rev.10 Page 1/3
https://www.m-system.co.jp/
MODEL: LTRPN
Zero adjustment: -5 to +5 % (front)
Span adjustment: 95 to 105 % (front)
Minimum span: 5 mV
Offset: Max. 1.5 times span
Load resistance: Output drive 1 mA max. at ≥ 0.5 V
OPERATION DIAGRAM (example)
INPUT SPECIFICATIONS
Frequency: 50 or 60 Hz
• Negative in lag, positive in lead
OUT
20mA
OUT
+10V
■ VOLTAGE INPUT
Operational range: 85 – 110 % of rating
Overload capacity: 150 % of rating for 10 sec., 110 %
continuous
12
4
0
■ CURRENT INPUT
-10V
1000
(Lag)
1000
(Lag)
0
1000var
(Lead)
0
1000var
(Lead)
Operational range: 0 – 120 % of rating
Overload capacity: 4000 % of rating for 1 sec., 2000 % for 4
sec., 120 % continuous
• Negative in lead, positive in lag
OUT
20mA
OUT
+10V
■ How To Determine Var Range
Calibration Range [var] = (Measuring Range) ÷
((VT Ratio) × (CT Ratio))
12
4
0
Check that the required calibration range is within the
available range in the table.
-10V
1000
(Lag)
0
1000var
(Lead)
1000
(Lag)
0
1000var
(Lead)
[example]
3-phase / 3-wire, measuring range 75 kvar,
VT 220 / 110 V, CT 250 / 5 A
INSTALLATION
(75 × 10 [var])÷((220 ÷ 110) × (250 ÷ 5))= 750 [var]
3
Operating temperature: -10 to +55°C (14 to 131°F)
Operating humidity: 30 to 85 %RH (non-condensing)
Mounting: Surface or DIN rail
• 3-phase / 3-wire
INPUT
VT / CT
STD.RANGE
CODE
BURDEN (VA)
USABLE RANGE
VT
CT
Weight: 450 g (0.99 lb)
1 / 1
1 / 2
1 / 5
2 / 1
2 / 2
2 / 5
200 var
400 var
1000 var
400 var
800 var
2000 var
100 – 240 var
200 – 480 var
500 – 1200 var
200 – 480 var
400 – 960 var
1000 – 2400 var
0.1/ph
0.2/ph
0.5/ph
0.1/ph
0.2/ph
0.5/ph
P1: 2.5
P3: 0.2
PERFORMANCE in percentage of span
Accuracy: ±0.5 % (at 23°C ±10°C or 73.4°F ±18°F,
45 – 65 Hz)
P1: 2.5
P3: 0.4
Magnetic field (ext. origin) effect: ± 0.5 % (400 A/m)
Response time: ≤ 2 sec. (0 – 100 % ±1 %)
Ripple: 0.5 %p-p max.
• 3-phase / 4-wire
INPUT
VT / CT
STD.RANGE
CODE
BURDEN (VA)
VT CT
USABLE RANGE
Insulation resistance: ≥ 100 MΩ with 500 V DC
Dielectric strength: 2000 V AC @ 1 minute
(voltage input to current input to output to ground)
Impulse withstand voltage: 1.2 / 50 μsec., ±5 kV
(input to output or ground)
1 / 1
1 / 2
1 / 5
2 / 1
2 / 2
2 / 5
4 / 1
4 / 2
4 / 5
200 var
400 var
1000 var
400 var
800 var
2000 var
800 var
1600 var
4000 var
100 – 240 var
200 – 480 var
500 – 1200 var
200 – 480 var
400 – 960 var
1000 – 2400 var
400 – 880 var
800 – 1760 var
2000 – 4400 var
P1 – P2 0.1/ph
: 2.5
0.2/ph
P3: 0.1 0.5/ph
P1 – P2 0.1/ph
: 2.5
0.2/ph
P3: 0.3 0.5/ph
P1: 2.5 0.1/ph
P2: 0.4 0.2/ph
P3: 0.4 0.5/ph
STANDARDS & APPROVALS
EU conformity:
EMC Directive
EMI EN 61000-6-4
EMS EN 61000-6-2
Low Voltage Directive
EN 61010-1
OUTPUT SPECIFICATIONS
■ DC Current: -10 – +20 mA DC
Span: Min. 1 mA, max. 20 mA
Measurement Category II (input)
Pollution Degree 2
Offset: Max. 1.5 times span
Input to output: Reinforced insulation (300 V)
RoHS Directive
Load resistance: Output drive 10 V max.
■ DC Voltage: -10 – +12 V DC
LTRPN SPECIFICATIONS
ES-3358 Rev.10 Page 2/3
https://www.m-system.co.jp/
MODEL: LTRPN
CONNECTION DIAGRAM
■ 3-PHASE/3-WIRE
■ 3-PHASE/4-WIRE
SOURCE
SOURCE
1
2
3
N
1
2
3
VT
VT
FUSE
FUSE
U
u
P1
P2
P3
U
V
u
v
P1
P2
P3
P0
7
8
9
11
12
7
8
11
12
+
–
+
–
OUTPUT
OUTPUT
V
V
v
v
U
V
u
v
9
U
V
u
v
U
u
K
K
10
K
K
K
k
1S
1L
3S
3L
1
2
5
6
k
k
1S
1L
2S
2L
3S
3L
1
2
3
4
5
6
CT
k
k
CT
l
l
L
L
l
l
l
L
L
L
LOAD
LOAD
EXTERNAL DIMENSIONS & TERMINAL ASSIGNMENTS unit: mm [inch]
10 (.39)
16–M4 SCREW
2–M4 MTG HOLE
TERMINAL COVER (option /T)
DIN RAIL
35mm wide
1
2
3
4
5
6
7
8
9
10
11 12 13 14 15 16
8 (.31)
[4 (.16)]
54 (2.13)
72 (2.83)
3
(.12)
143 (5.63)
• When mounting, no extra space is needed between units.
Specifications are subject to change without notice.
LTRPN SPECIFICATIONS
ES-3358 Rev.10 Page 3/3
https://www.m-system.co.jp/
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