Range of application and function

DESK Tundra — automated diesel power plant in metallic block-container 0,4 kV, from 4 up to 630 kilowatt — is intended for bulk, backup or emergency power supply of industrial oil and gas enterprises, hospitals, airports, trade and entertainment complexes and other objects that require no-break power supply.
DESK Tundra is intended for circuits with isolated by alternative three-phase 400V voltage of 50 Hertz neutral terminal. DESK Tundra is connected to cable lines.
DESK Tundra is manufactured in winterized containers, dimensions 1,2 and 3 (table 2).

Advantages

Main advantages of DESK Tundra:

• High factory readiness. Electrotechnical equipment, all primary and secondary electrical connections are fully mounted in DESK Tundra;
• Closed container substation type with maintenance corridor provides convenient and safe equipment maintenance any time of the year;
• The container is provided with heat insulation and heating that enables to operate DESK Tundra at temperature up to -60 ^oС and prevent sweating in the container;
• Cable sealing and gaskets are used that provides plain and safe sealing used with the cables of different trademarks and sections;
• Power station is manufactured on the base of domestic or import diesel generator that provides optimum relationship of price and quality;
• DESK Tundra is equipped with automatic standby activation system (ASA) that enables to exclude ASA out of the low voltage switchgear.
• The completing of DESK Tundra according to individual electric circuits is possible.

Equipment composition

DESK Tundra is composed of:

• Winterized block-container with automatic systems of operation support that provide stable operating conditions of the diesel power plant at air temperature from -40 (-60) up to +40 ^oС.
• Diesel-electrical plant composed of diesel, generator, local control desk, engine starting and operating system.
• Diesel-generator control cabinet.
• Auxiliary automation cabinet.
• Local lighting desk.
• Chargers' panel for charge level control and self-charging battery (220 V).
• Supply fuel tank with fuel and lubricants supply system.
• Automatic temperature support system (inside the container).
• Fire-alarm system.
• Automatic fire-control unit.
• Fume extraction automatic system.
• Supply-and-exhaust ventilation system.
• Working and standby lighting of the container.
• Additional equipment at the request of the customer.

Key technical parameters

Electric energy quality standards at the rated power ratio are provided in table 1.

Table 1

NN Sustained voltage deviation, %, at most 1 At symmetrical load variations from 10 up to 100% of rated power ±2 At constant load   -in the range of 25% up to 100% of rated power ±0,5   — in the range of 10% up to 25% of rated power ±1,0 2 Voltage deviation when loaded-unloaded:   -100% of rated power, %, at most ±20 Voltage recovery time, с, at most 2   -50% of rated power, %, at most ±10 Voltage recovery time, с, at most 1 3 Frequency error at the constant symmetrical load, %, at most from 10% to 25% of rated power ±1,0 from 25% to 100% of rated power ±0,5 4 Frequency deviation when loaded-unloaded 100% of rated power, %, at most ±6 Frequency recovery time, с, at most 3 5 Voltage waveform distortion factor, %, at most 5 6 Linear voltage unbalance factor at the unbalanced phase load with unbalanced current ratio 20%, %, at most 5

Key technical parameters are provided in table 2

Table 2

Parameter Value Diesel-electrical plant power, kilowatt 4-24 30-60 75-560 DESK Tundra dimensions *, мм: 1 2 3 — length 3100 4500 6058 — width of the module 2484 2484 2438 — height of the module 2583 2583 2591 DESK Tundra weight, at most kg:       Life time, years Not less than 25

*Annotation: Dimensions could be changed according to GOST 15.902-85.

Annotation: The design of DESK Tundra is continuously upgraded therefore certain modifications not included in this list are possible. Such modifications don't have any effect on the quality of the equipment.

Standardization and quality

DESK Tundra meets the requirements of:

• GOST 14695-80 и GOST 1516.3-96;
• CNiP 2.01.07-85, CNiP П-23-81
• National Electric Safety Code;
• Technical requirements ТУ-3412-011-41801232-2004.

Metallic block-containers meet the requirements of GOST 22853-86.
Liability class — III.
Reliability coefficient — 0,9.
Fire resistance degree — III acc СНиП 21-01-97.

Symbol identification

Thermal performance modifications:
ХЛ (KhL) — placement category 1 according to GOST 15150-69.
Air temperature value operating at -60 ^oС up to +40 ^oС
У (U) — placement category 1 according to GOST 15150-69.
Air temperature value operating at -40 ^oС up to +40 ^oС

The example of symbol identification of DESK Tundra 3d type of dimension 200 kilowatt, 3d degree of automation, thermal performance УХЛ1: ДЭСК-200.3-УХЛ1 (UKHL1: DESK-200.3-UKHL1).

Engineering design

The construction of the module is a fabricated frame made of special joist webs. In the main frame and frame members there are corner fittings for crane lifting and transportation of the module.

The cladding of the module is made of shaped sheet C-21 1,5 mm thickness which is welded on to the skeleton frame by the solid weld. Interior paneling is made of zinc-coated shaped sheet C-8 0,55 mm thickness, which is fixed by bolt screws. Inside the paneling there are heat insulating slabs 50 or 100 mm thickness.

Floor covering is made of corrugated iron 4 mm, the bottom of the module is covered by iron sheet 1,5 mm. The floor is winterized by heat insulating slabs of 150 mm.

For hermetic encapsulation of external connection cables in the side wall of the module cable sealing and gaskets are mounted.

Inside the module there are diesel-generator unit mounted on the frame, diesel-electrical plant control panels, auxiliary automation panels, distribution cabinet, accumulator batteries, fuel and lubricants supply tank equipped with level sensors to provide the pumping of the fuel from fuel storage tank to fuel supply tank. There is a possibility of working fuel drain and dumping fuel system.

The module is equipped with automatic system of operation support (heating, ventilation, fire alarm, automatic fire-control unit, working and standby lighting) that provides all necessary climatic conditions for reliable operation of the diesel-generator unit at the temperature from -60 up to 40 ^oС.

The heating is provided by electric convector heaters.

Combined extract and input ventilation is provided in DESK Tundra. System of ventilation of the container's internal space, diesel-generator unit's cooling is composed of automated shutters UAV (unified air valve), auxiliary automation cabinet, temperature sensors. Outside the container ventilators for protection purpose are covered by metallic by hinged cases. Air inlet shutter on demand of the consumer is equipped by electric ventilator.

Unified air valves are intended for the flow control of the supply recirculated or exhaust air in the systems of ventilation and conditioning as well as for sealing of the internal volume of the ventilation networks where the operating pressure doesn't exceed 1500 PASCAL's, air permit in closed position at the maximum pressure fall is not more than 5%. Profiled rubber seals fastened in the places of blades connection considerably raise hermiticity factor in this unit and enable to exclude the possibility of horizontal air flow leaking.

The valves have fixed size spectrum of net sections designed considering the compliance to the sections size spectrum of the metallic air pipes mentioned in the appendix 21 SNiP 2.04.0591. Broad range of the materials can be used for the valve production provides the possibility of wide choice in the control accuracy of the air consumption. Both manual and electric drive can be used (all range of Belimo drives can be used).

At the request of the customer DESK Tundra can be equipped with the forced container's electrical ventilation unit when the diesel-electrical unit is switched off.

Exhaust gas extraction provided by the standard exhaust system and then to the external exhaust pipe. Pipeline is fitted with complete critical silencer, decreasing the noise level by 35 dB. For compensation of the heat-stretches during the heating at the vertical part of the exhaust pipeline compensator is placed.

For auxiliary supply Auxiliary automation cabinet is provided that supplies from the circuit or accumulator battery. Auxiliary automation cabinet supplies energy to pumps, valves, electrical convectors, lighting.

DESK Tundra is equipped with the system of main and standby lighting (4 lamps 220 V; 4 lamps 24 V). Switching between the modes is made automatically. Electrical lighting provides illumination inside the container at least 150 lux. Lighting general control is provided by the local lighting desk where outlets 24V and 220 V 50 Hertz for portable lights and electrical devices power supply are mounted. Security and fire alarm loops are connected to control and indicating equipment that enables to signal separately security and fire alarms to the remote control. DESK Tundra is equipped with powder fire extinguisher. On demand of the customer it is possible to install the fire control unit.

The floor of the container welded from steel checkered sheet provides grounding. All metallic noncurrent-carrying parts of the equipment that can be alive are welded or screwed on to the floor. DESK Tundra has two stages for connection to outer grounding mat that are marked like «Grounding». After installation of the DESK Tundra external cables should be connected and it should be connected to the external grounding circuit.

The calculation of the grounding device is performed for particular project with particular conditions.

Rated parameters of the outdoor environment climatic factors when operating KTPK Taiga according to GOST 15543.1 and GOST 15150:

• Ambient temperature from -40(60) ^oС to + 40 ^oС;
• Relative humidity up to 100%;
• Altitude above sea level not more than 1000 m;
• Ambient — non dangerously explosive, doesn't contain current-conducting dust, aggressive gases and fumes of concentration wrecking materials and isolation, ambience of the types I and II according to GOST 15543.1 and GOST 15150:

Technical parameters and kitting of the diesel-electrical plant (DEP)

DESK Tundra is equipped with diesel-electric plant of domestic production or imported. Main technical parameters are performed in table 3.

Table 3

Parameter Value DEP-8 DEP-16 DEP-30 DEP-50 DEP-60 DEP-75 DEP-100 DEP-160 DEP-200 DEP-250 1. Rated power, kilowatt 8 16 30 50 60 75 100 160 200 250 2. Maximal power (current overload at rated power coefficient) during 1 hour of continuous duty, kilowatt. Full operating time at maximal power mode mustn't exceed 10% of total operating time of the DEP in the range of overhaul life. For setting of the normal thermal conditions dwell must be done between overloads. 8,8 17,6 33 55 66 82,5 110 176 220 275 3. Minimal power admissible by continuous duty, kilowatt 2,0 2,5 5 15 15 25 25 65 80 100 4. Rated speed, rpm 3000 1500 5. Rated power coefficient by inductive load (Cos φ) 0,8 6. Type of current alternative, three-phase 6.1. Current frequency, Hertz 50 6.2. Rated voltage, V 400 6.3. Rated current (at соs φ=0,8), А 14,5 29 54 90 108 135 180 288 360 450 7. Fuel consumption at rated power, kg/hour, at most 3,4 6,1 8,9 13,3 15,8 18,8 24 38 47,03) 51,04) 55,04) 8. Specific fuel consumption at rated power in consideration of conditions of the p.2 of the comments in table 1, g/kilowatt-h, at most 300+15 324+15 264+13 240+13 250+13 240+13 240+13 235+13 238+133) 255+134) 220+114) (для сопоставления параметров) 9. Oil consumption loss at rated load, kg/h, at most 0,02 0,025 0,05 0,09 0,09 0,22 0,22 0,24 0,45 0,554) 10. Specific oil consumption loss, g/kilowatt-h, at most 2,5 1,5 2,25 1,5 1,53) 2,04) 2,24) (для сопоставления параметров) 11. Weight of dry DEP without enclosed devices, kg, at most 370 500 1000 16001) 16502) 1650 2000 2000 2800 28003) 35004) 3400 12. Unit weight, kg/kilowatt 46 31 33 321) 332) 28 27 20 18 143) 7,54) 13 (для сопоставления параметров) 13. DEP dimensions, мм, at most:                     — Length 1210 1750 1920 22001) 23702) 22001) 23702) 2695 2695 2960 29603) 34004) 33004) — Width 600 790 790 8601) 10652) 8601) 10652) 1065 9906) 1065 9906) 1100 11103) 14604) 11604) — Height 725 1330 1330 13001) 16002) 13001) 16002) 1640 1640 1510 15103) 16454) 16454)

1) For DEP with diesel type Д-246,4;
2) For DEP with diesel type ЯМЗ-236;
3) For DEP with diesel type ЯМЗ-7511;
4) For DEP with diesel type ЯМЗ-240.

Comments. 1 Power according to p.1 and 2 in table 1 should be provided on conditions that:     — ambient temperature, К (oС) 313 (40)   — atmospheric pressure, kilopascal (mm mercury column) 89,9 (674)   (height above sea level under 1000 m)     — relative humidity, % 70   — power coefficient (Cos φ) 0,8   — air pressure,     at most, kilopascal (mm mercury column) 6(600)   2. Specific fuel consumption at normal conditions:     — ambient temperature К (oС) 293 (20)   — atmospheric pressure, kilopascal (mm mercury column) 101 (760)   — relative humidity, % 70

Brief technical parameters for some types of diesel-electric plants produced by Wilson provided in table 4.

Table 4

Plant modification Rotation frequency, rpm Power Engine Generator Fuel consumption, l/h Fuel tank capacity, l open construction Dimensions LхWхH,mm open construction Weight*, kg open construction Kilovolt-ampere kilowatt Name Model Name Model К8-1 1500 8 6,4 Kubota D905 Meccalte BTO3-2S/4 2,43 30 1400x740x1033 322 KH12-1 3000 12 9,6 Kubota D722 Meccalte TR2-200/2 3,69 23 1244x620x858 258 Р20Р2 1500 20 16 Perkins 404С-22G2 Leroy Somer LL1014N 5,4 45 1320x552x1258 476 PH30E2 3000 30 24 Perkins 404C-22G1 Leroy Somer LL1012N 8,9 45 1320x552x1258 446 Р50Е3 1500 50 40 Perkins 1103A-33TG1 Leroy Somer LL2014C 11,9 175 2149x752x1366 910 Р200H 1500 200 160 Perkins 1306-E87TA300 Leroy Somer LL5014F 42,7 350 2953x1003x1717 2043 P300P3 1500 300 240 Perkins 2306C-E14TAG1A Leroy Somer LL5014L 63,8 820 3601x1100x2065 3285 P400E1 1500 400 320 Perkins 2306C-E14TAG2 Leroy Somer LL6014D 85,5 820 3601x1110x2065 3350 P500E 1500 500 400 Perkins 2806C-E16TAG1 Leroy Somer LL6014F 109 885 3828x1200x2174 3800 P600P1 1500 600 480 Perkins 2806C-18TAG2 Leroy Somer LL6114K 116 1350 4111x1536x2098 4797 P700E1 1500 700 560 Perkins 2806C-E18TAG2 Leroy Somer LL7024H 140 1350 4111x1536x2098 4870

In this table there are only some types of DEP produced by Wilson. At the request of the customer, in terms of declared power and mode of operation necessary type of DEP is supplied to the consumer. It is possible to equip DESK Tundra with DEP of the other brand.

Functions of the DEP automatic control subject to DESK Tundra degree of automation

Table 5

NN Control operation Degree of automation 1 2 3 1 Manual or semiautomatic DEP starting and load connection to he generator + + + 2 Manual or semiautomatic DEP halting + + + 3 Manual or semiautomatic starting of the stand-by dies-electric plant and load connection to the generator by voltage collapse at the mains supply, when mains supply parameters overrunning limits prescribed or false phase interlacing - + + 4 Automatic DEP halting and return to mains supply when its parameters are recovered - + + 5 Possibility of reprogramming the starting parameters, alarm signaling limits and DEP halting + + + 6 Automatic temperature maintenance of cooling liquid and oil in the prescribed limits when DEP is in the mode of «hot» stand-by - + + 7 Blocking signal when loading to the generator by oil temperature fall less than prescribed limit - + + 8 Remote starting/halting, emergency stop from remote control of the operator - + + 9 Manual, automatic starting (in preset number of days) in TEST mode - + + 10 Batteries recharging when DEP is switched off - + + 11 DEP Operating period registration + + + 12 Signaling about DEP emergency condition by the means of telesignalization - + + 13 Availability of remote control and PC control (at the specific request of the customer) - + + 14 Signaling about the servicing - + + 15 DEP emergency protection, light and audio alarm according to the following parameters:   — Oil and coolant overheating + + +   — generator's voltage overshoot + + +   — oil pressure fall + + +   — failed engine starting - + +   — failed diesel halting + + +   — engine overrevving — overrun (generator's high frequency) + + +   — generator's low frequency + + +   — generator's overload + + +   — short circuit in load circuits + + +   — spontaneous diesel halting - + +   — contactors malfunction (automatic switches) of the circuit and generator - + +   — battery's voltage overshoot - + +   — fuel level lowering down to the prescribed limit - + + 16 Automatic and remote control of the air heating in container where DEP is mounted, during winter when the shutters of supply-and-exhaust ventilation are closed - - + 17 Automatic and remote control of the ambient temperature by the means of supply-and-exhaust ventilation when the shutters are opened or in summer when the DEP is on - - + 18 Automatic and remote control of the DEP fuel pump - - + 19 Automatic and remote control of the DEP oil pump - - + 20 Signaling of the DEP activation in the «Self-heating» mode when ambient temperature is lowered till the prescribed level - - + 21 Signaling of the activated DEP emergency halting when fire alarm indicator has been activated or ambient temperature is out of the prescribed level - - + 22 Signaling of the diesel activation prohibition, oil and fuel tanking, ventilation activation when fire alarm has been activated - - + 23 Light alarm of the emergency mode on the front panel of the auxiliary desk according to the following indications:  — general breakdown - - +   — ambient temperature in DEP compartment less than +5 oС, or more than 50 oС - - +   — fuel level in consumed DEP tank reached emergency mark - - +   — oil level in consumed DEP tank reached emergency mark - - + 24 Transmission via telesignalization the following parameters:  — general breakdown - - +  — oil level in consumed DEP tank reached emergency mark - - +   — emergency indication (ambient temperature, emergency oil level, emergency fuel level, fire indication) - - +   — unauthorized opening of the container's door - - +   — prohibition or permission of DEP activation - - +

Transportation and storing

DESK Tundra is delivered to destination completely packaged.
Each DESK Tundra module is equipped with fittings for lifting, loading and unloading of the module by crane.
Storage ambient temperature for the conservated KTPK Taiga is from — 40 (-60) ^oС up to +4 ^oС.

Mounting

DESK Tundra construction provides its mounting on the ready basement ground. There are 3 main variants of basements:

• Ferroconcrete poles;
• Concrete box units.

Outside surface of the basement should be covered with water stop like bitumastic, silicone paint and such like. The depth of foundation is determined in both variants by the definite project. At the request of the customer or design engineering firm other constructions of basements are possible.

Lifting and moving of the DESK Tundra are carried out by crane through strapping hooks and corner fittings in two ways:

• using cross-beams with slings at the tips;
• using long slings.

Operation safety

Power station DESK Tundra meets the requirements of National Electric Safety Code, Rules for Technical Operation of Electricity Generating Plants, requirements of GOST 12.2.007.0-75 and norms of fire safety NPB110-03. The construction of the DESK Tundra components provides service personnel safety from electric shock according to GOST 12.1.019-79, rotary and moving parts injury and burns from high temperature heated parts. Maximum permissible value of specific weight-average of pollutant emissions with diesel discharge gases according to GOST Р 51249-99, at most: nitric oxide — 10 g/kilowatt-hour; carbonic oxide — 3 g/kilowatt-hour; hydrocarbon — 1 g/kilowatt-hour. Discharge gases exhaust opacity according to GOST Р 51250-99.

Checklist

Set of devices included in DESK Tundra are gone through incoming control and conform to the technical requirements of the producers.

DESK Tundra checklist consists of:

• Diesel-electrical plant (DEP);
• Power station automatic control system (degree of automation conforms to the order);
• Cable or bussing connections, set by DESK Tundra construction;
• Auxiliary automation cabinet;
• Automatic fire extinguisher or automatic fire control unit;
• Control desk (kitting conforms to the order);
• Fuel system;
• Spare parts and accessories according to the specification of DESK Tundra;
• Technical documentation for KTPK Taiga;

Options

Additionally DESK Tundra can be fitted with:

• cables for external connection with two metallic cable bridge-trays for mounting to air line pole 0,4 kV;
• set of protective means.

DESK Tundra can be equipped with the following options:

• Burglar and fire alarm on the basis of control and indicating equipment. These for devices are able to work both off-line and composed of centralized system. They have different operating modes, can be controlled by programmable electronic keys Touch Memory and can be equipped by several alarm tails.

In the base case of KTPK Taiga there is burglar and fire alarm system «Quarz» outside controlled by the Touch Memory keys. Alerts are led to terminal block and to alarms placed inside DESK Tundra.

• Operator's remote control;
• Set of outdoor lamps;
• Street lighting control desk;
• Automatic load transfer cabinet if the plant has 2 and more inputs;
• Trailer for DESK Tundra transportation.