Technical Specifications

ManualsBrandsEmerson ManualsLoad BanksEmerson 3750-6250 KVA (LCV) Container Load Bank

8/2012-Rev A (LCV)

ENGINEERING SPECIFICATION

FOR MEDIUM VOLTAGE VERTICAL AIRFLOW

OUTDOOR RESISTIVE LOAD BANK

MODEL LCV-10000

PART 1.0 GENERAL

1.1 SCOPE

A. This specification contains the minimum requirements for the design, manufacture and testing of

a direct connect, medium voltage, air-cooled, outdoor resistive load bank.

B. The load bank is required for periodic exercising and testing of the (standby) emergency power

source. The load bank shall be permanently mounted outdoors in a weather resistant 40' ISO

style container. Unit shall be forced air cooled. The control panel will be remotely mounted.

C. This specification shall apply if the load bank is supplied to the purchaser, or as a part of other

equipment.

D. Should the vendor take exception to any part of this specification, it shall be stated in the bid, and

referenced to the specification line number.

1.2 SUBMITTALS

A. The manufacturer shall submit for review technical data including features, performance,

electrical characteristics, physical characteristics, ratings, accessories, and finishes.

B. Shop drawings shall include dimensional plans, front and side elevations and mounting details

sufficient to properly install the load bank. Load bus configuration and load connections

termination area shall be clearly identified.

C. Electrical schematic drawings shall be provided to detail the operation of the load bank and the

provided safety circuits. Over-current protection and control devices shall be identified and their

ratings marked. A system interconnection drawing shall be included for control wiring related to

the load bank.

1.3 STANDARDS

A. The equipment covered by this specification shall be GOST-R standard certified.

B. The load bank shall be manufactured using UL Listed components as available.

PART 2.0 PRODUCTS

2.1 RATINGS

A. The total capacity of the load bank shall be rated 10MW at 6.3 KV, 3-Phase, 3-Wire, 50 Hertz,

916 Amps per Phase at unity 1.0 Power Factor and 500 KW minimum load step resolution.

B. The load bank shall be designed for continuous duty cycle operation with no limitations. The load

bank shall operate in an ambient temperature of -40°C to 49°C (-40°F to 120°F).

C. To avoid any transformation of voltage, load bank shall be designed as a true medium voltage

direct connect unit. The use of a medium voltage step down power transformer and low voltage

load bank shall not be permitted.

Summary of content (4 pages)

PAGE 1
ENGINEERING SPECIFICATION FOR MEDIUM VOLTAGE VERTICAL AIRFLOW OUTDOOR RESISTIVE LOAD BANK MODEL LCV-10000 PART 1.0 GENERAL 1.1 SCOPE A. This specification contains the minimum requirements for the design, manufacture and testing of a direct connect, medium voltage, air-cooled, outdoor resistive load bank. B. The load bank is required for periodic exercising and testing of the (standby) emergency power source.
PAGE 2
.2 MATERIAL AND CONSTRUCTION A. The load bank shall be outdoor construction housed in 40' ISO style container (tall cube 9'-6") with vertical air flow suitable for permanent operation. B. The ISO style load bank container shall be fabricated from formed and welded steel, making a rigid, drip-proof structure. The container shall be primed on the inside and out with catalyzed epoxy primer and catalyst. Finish shall be two coats of ANSI 61 Gray urethane, Polane S. Total dry film thickness to be 4.8-6.
PAGE 3
C. 2.5 An integral control power transformer shall be provided to supply 120V, 1 phase, 50 Hz to the load banks control. Transformer primary and secondary control circuits shall be fuse protected. PROTECTIVE DEVICES A. Current sensing switches are provided to sense current flow on each fan motor. These switches change state when current flow is sensed. This feedback is electrically interlocked with load application controls to prevent or remove load if current is not sensed or lost at each fan motor.
PAGE 4
PART 3.0 QUALITY ASSURANCE 3.1 QUALITY CONTROL A. The load bank shall be fully tested using a test specification written by the supplier. Tests shall include electrical functional testing, verifying conformance to assembly drawings and specifications. Each load step shall be cold resistance checked to verify proper calibration of resistive load steps and proper ohmic value. B. The manufacturer shall maintain this data on file for inspection purposes by the purchaser.