Main Features:
- Exceeds class 0.2 revenue accuracy in Power & Energy Metering.
- On board Ethernet port supporting TCT/IP protocol. Acts as a small web-server. Also supports MODBUS TCP/IP.
- RS485 port with MODBUS-RTU protocol.
- Demand Measurement: Fixed or sliding. KW or KVA.
- Harmonics measurement: All six waveforms upto 29th including THD.
- Bright Red LED display. Three rows of 8-digits each ensure unbroken display of even large energy register values.
- Four relay outputs for Alarm & Trip. Limits are field programmable.
- Event definition and logging.
- Datalogging of all parameters for load pattern analysis. 2 Mbytes memory on-board.
- USB 2.0 port to download logged data.
- USB 2.0 port based programming of field selectable parameters.
Comprehensive and Accurate Measurement:
- 3-phase Voltage (L-N)
- 3-phase Voltage (L-L)
- 3-phase Current
- KW (3-phase and Total)
- KVAR (3-phase and Total)
- KVA (3-phase and Total)
- PF (3-phase and Total)
- Bidirectional KWh
- KVAh
- KVARh
- Frequency
- % THD
- Demand & MD
Advance Measurement Features:
SLM102 also measures the minimum & maximum values and also allows definition of events, so that the user can define the
parameter of interest, event definition value and related time delays.
- Voltage min/max. -3-phsae L-N
- Voltage min/max. - 3-phase L-L (applicable only for 3P3W)
- Current min/max. - 3-phase.
- Hz min/max.
- Active Power min/max. - 3-phase & Σ system
- Apparent Power min/max. - 3-phase & Σ system
Harmonic Measurement:
SLM102 measures the odd harmonics for 3Ø voltages and 3Ø currents upto 29th, includidng THDs for each waveform.
Relay Outputs Options
The SLM102 has four relay outputs, related at 3A. These can be used for alarm/trip events. The use of these relays is totally
field configurable, for the parameter on which to operate, the value on which to trip, the delay offer which to trip and the
value at which to open. This enables the SLM102 to be used as a maximum demand controller.
Data Logging
The SLM102 has 2Mb on-board non-volatile memory. The unit has a user programmable log capacity, that is the log
duration is site selectable. A complete electrical system snap-shot is saved, to be later downloaded using the
USB 2.0 port, into a PC based utility supplied free by Trinity.
Communication
Ethernet
The SLM102 has a standard Ethernet-TCP/IP connection. Multiple socket Ethernet connectivity enables the unit to
respond to as many as 12 different requests. The SLM102 can act as a small web-server.This on-board web-sever, offers
quick and easy access to basic measurement, without special software. Built-in web pages display a range of power, energy
and basic power quality information through any web enabled device. It also supports MODBUS-TCP/IP protocol.
|
Type |
Name |
Statistics |
Symbol |
3P4W |
3P3W |
True
RMS
Basic param
eters |
Voltage
(Volts L-N) |
Direct Voltage Input : 0 to 300 VAC
PT Ratio : Programmable upto 66 KV
Range of Reading : 0 to 66 KV
Accuracy : 0.2% of reading
: (50<V<300) |
Vr |
|
- |
Vy |
√ |
- |
Vb |
|
- |
Voltage
(Volts L-L) |
Direct Voltage Input : 0 to 450 VAC
PT Ratio : Programmable upto 66 KV
Range of Reading : 0 to 66 KV
Accuracy : 0.5% of reading
: (85<V<545) |
Vry |
√ |
√ |
Vbr |
√ |
|
Vyb |
√ |
√ |
Current
(Ir, Iy, Ib) |
Secondary Current input : 1A or 5A
CT Ratio : Freely programmable from
5A to 5000A
Range of Reading : 0 to 5000A
Accuracy : 0.2% of reading
(0.02 IB<I<1.2 Ib) |
Ir |
|
|
Iy |
|
- |
Ib |
|
|
Line
(Frequency) |
45 to 55 HZ
Accuracy : 0.5% of Reading |
Hz |
√ |
√ |
| Power |
Active
Power(P) |
Accuracy : See Table-1
(0.5 < cosθ < 0.8) |
(P) R-Phase |
|
|
(P) Y-Phase |
|
- |
(P) B-Phase |
|
|
Reactive
Power(Q) |
Accuracy : See Table-1
(0.5 < sinθ <0.8) |
(Q) R-Phase |
√ |
√ |
(Q) Y-Phase |
√ |
- |
(Q) B-Phase |
√ |
√ |
Apparent
Power(S) |
Accuracy : 0.3% of Reading
(0.01 Ib ≤ I < Imax) |
(S) R-Phase |
|
- |
(S) Y-Phase |
|
- |
(S) B-Phase |
|
- |
System Active
Power(P) |
Accuracy : See Table-1
(0.5 < cosθ < 0.8) |
Σ-P |
√ |
√ |
System Reactive
Power(Q) |
Accuracy : See Table-1
(0.5 < sinθ <0.8) |
Σ-P |
|
|
System Apparent
Power(S) |
Accuracy : 0.3% of Reading
(0.01 Ib ≤ I < Imax) |
Σ-P |
√ |
√ |
| Power Factor |
0.5% for 0.5 < |PF| < 0.8,
(0.05 Ib < I < 1.2 Ib) |
PF R-Phase |
|
- |
PF Y-Phase |
|
- |
PF B-Phase |
|
- |
System PF |
|
|
Table 1-Percentage Error Limits for Power
Value fo Current |
PF |
Percentage Error Limits |
0.01 Ib ≤ I < 0.05 Ib |
1.0 |
±0.4 |
0.05 Ib ≤ I ≤ Imax |
1.0 |
±0.2 |
0.02 Ib ≤ I < 0.1 Ib |
0.5 Lagging |
±0.5 |
0.8 Leading |
±0.5 |
0.01 Ib ≤ I ≤ Imax |
0.5 Lagging |
±0.3 |
0.8 Lagging |
±0.3 |
Energy, Demand and Power Quality
Parameters |
Mode |
Type |
Statistics |
3P4W |
3P3W |
Total Active
Energy(KWh) |
Range of reading : 0 to 9999999.9 MWh
Accuracy : 0.2S as per IS 14697:1999 |
√ |
√ |
Total Reactive
Energy(KVARh) |
Range of reading : 0 to 9999999.9 MVARh
Accuracy : 0.2S as per IS 14697:1999 |
√ |
√ |
Total Apparent
Energy(KVAh) |
Range of reading : 0 to 9999999.9 MVAh |
√ |
√ |
Active Power
Demand(KWDMND) |
Sliding and Fixed selectable |
√ |
√ |
Apparent Power
Demand(KVADMND) |
Sliding and Fixed selectable |
√ |
√ |
| Harmonics for Voltages (3rd to 29th) |
√ |
√ |
| Harmonics for Current (3rd to 29th) |
√ |
√ |
| THD for each voltage |
√ |
√ |
| THD for each current |
√ |
√ |
Power Supply:
Self Power. Unit has in-built 3-phase supply with an operating range of 50 VAC - 480 VAC, 50-60 Hz.
Miscellaneous
Display |
8X3 (Digits X Lines) 7 Segment LED display
Eighteen LEDs for parameter indication
Two LEDs for Active and Reactive Energy (1000 impulse / KWh or KVARh). |
Dimensions |
Bezel : 144 mm X 144 mm.
Depth of Installation : 55 mm
Panel cutout : 138 mm X 138 mm |
Operating Temperature |
: 0°C to 60°C |
