WAMS equipment

The WAMS equipment is located usually in one or more rack cabinet. We also produce special versions cabinets  on request, which  are made according to customer requirements. 

WAMS lets solved a number of problems:

— providing measurement synchrophasors in real time; 

— global monitoring of transmission system conditions over large areas; 

— detecting and preventing further grid instabilities.  

— verifying model of power grid; 

— emergency  record archives and emergency events, visualization of dynamic characteristics of the system, analysis of power grid failures.

WAMS based on equipment produced Engineering centre "Energoservice" include:

— ENIP-2 (PMU)

— ES-PDC — phasor data concentrator; 

— ENCS-2 — time sync module (IRIG-A time code sequence); 

— ENMV-3 — analog input modules for controlling the parameters of generator excitation (for power plants); 

— ENMI-6 — diagnostic subsystem; 

— UPS — uninterruptible power supply subsystem; 

— communications equipment (switches, routers).  

The algorithms for signal processing are designed in accordance with the C37.118.1 standard: interference is tuned-out in the form of the electromagnetic transient processes and the higher harmonics free components. The algorithms provide the required measurement accuracy at the power system frequency change, in conditions of electromechanical transient processes, in case of load changes, due to AEC and other power system automation units operation. Units can be configured for phasor measurements of P or M classes in accordance with IEEE C37.118.1.

Measurements (PMU)

Number of PMU ENIP-2

1…6 in one cabinet:

maximum 40.

Controlling the parameters of generator excitation

Analog input modules ENMV-3

ENMV-3 are mounted in WAMS cabinets or on panels near the primary sensors

Digital inputs

5 inputs "dry contacts"

to monitoring state of the measuring circuits (cover of terminal blocks), state of cabinet door and other digital signals

Phasor data concentrator


ES-PDC, up to 40 inputs (PMU), up to 4 Outputs, 240/360Gb

Number of PDC

1 or 2 (redundant)

Time sync subsystem

Time sync module

ENCS-2 GPS-receiver with IRIG-A time code sequence

Diagnostic subsystem


Display panel ENMI-6 (4,3" TFT color touch screen, 480x272) with

alarm digital output.

Monitored equipments

PMU, PDC, time sync subsystem, UPS, network

Power supply

Type of power supply system

up to 2 power supply inputs, UPS with battery support (3000 VA)

Voltage of power supply

160...286 V AC

Power consumption

500 VA

Operating conditions and design

Operating temperature

from 0 to +55 °C


Enclosure cabinet, sheet steel, glass door, 2200х800х800 mm