Your position: > Products > Parallel module > LXC Series >
LSM672 Generator load distribution

LSM672 Generator load distribution

  • publish:2014-03-31 17:29      Browse:
  • Type:    LSM672
  • Product Summary:
  •       LSM672 Generator load distributionthe function of the Load Sharing Module is to proportionally share load between two or more generator sets while the system frequency is held constant. As an accessory to the Electronic Governing System, the LSM 672 measures the true power current, and through a parallel cable interconnection, continuously controls the governor system....

Description
User manual:
Software Download:
Product:
Product description:

LSM672 Generator load distribution the function of the Load Sharing Module is to proportionally share load between two or more generator sets while the system frequency is held constant. As an accessory to the Electronic Governing System, the LSM 672 measures the true power current, and through a parallel cable interconnection, continuously controls the governor system. A neutral "N" terminal is provided for connection to Wye type generator sets. This reduces third order harmonic errors inpower and load sharing controls. The Load Sharing Module can share load with the utility's main bus by using various droop and power control connections. In addition to its primary function of load sharing, the unit also contains adjustable monitors for forward and reverse power. When areverse power condition or a forward power limit are reached, a relay closure output is provided. A load anticipation circuit is also included to maximize transient performance in single or parallel operation.


Specifications:

PERFORMANCE

          Load Sharing:Adjustable to within 12% between sets

          PerformanceIsochronous and droop paralleling and power control

          Reverse Power MonitorAdjustable from 0.5-20% with a 2 second inverse time constant


Forward Power Monitor "ON" trip point adjustable from 20-100%

           "OFF" trip point adjustable from 0-80%

            Normally open contacts with a 2 second inverse time constant

            Power Output Signal 0 to 7.5 Volts DC representing 0-100%'load

All performance specifications are based on 5 amps from the current transformer (CT) secondaries at full load unity P.F.


POWER INPUT

        AC Input Signals: 208 or 416 Volt nominal line to line and 5 Amp CTs with a minimum 6.25 VA rating.

        Internal 0.25 ohm burden resistors

        Line to Line Voltages:    per table below

DC Supply18一36 VDC (Transient and reverse voltage protected)For 12 VDC applications use LSM 672-12

Polarity Negative ground (case isolated)

DC Power Consumption70 ma continuous

Power Output Signal 0-7 Volts based on 5 amps of C.T. output

ENVIRONMENTAL

Temperature Range 400 F to+1750 F (-400 C to +800 C)

Relative Humidity 100%一Circuit board heavily conformal coated

All Surface FinishesFungus proof and corrosion resistant

PHYSICAL

Dimensions See Diagram 1

Weight 5.2 Lbs. (2.36 Kgs)

MountingAny position, vertical preferred

RELIABILITY

Testing 100% Functional tested

Vibration1g@20-100 Hz

Shock 10 gs

Special Versions

          LSM 672-C  AC VOLTAGE IN尸U丁NOMINALLY 120 VAC LINE丁0 LINE

          LSM 672A-1 TERMINAL 25, POWER OUTPUT SIGNAL WITH RESPECT TO TERMINAL 16

         (TERMINAL 16 FUNCTION DISABLED) OUTPUT= 0 to 7 VDC FORWARD

                                      POWER AND 0 to -2 VDC REVERSE POWER.

LSM 672-1 FOR MAINS POWER CONTROL OPERATION. See publication PT14003


More Product