POWER TRANSFORMERS TMPNG-SESH SERIES FOR OIL PUMPS ENERGY OF YOUR FUTURE

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1 POWER TRANSFORMERS TMPNG-SESH SERIES FOR OIL PUMPS ENERGY OF YOUR FUTURE

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3 CONTENT Transformer series TMPNG-SESH for oil pumps 4 Purpose and application of TMPNG-SESH 4 Transformers operating conditions 5 Brief description of transformers 5 Part number structure for TMPNG-SESH 6 Part number example for TMPNG-SESH 6 Design of the transformer 7 7 Windings 8 Taps 8 Switching device 8 Tank 9 Transformer oil and its physical and chemical properties 10 Operation principle of the transformer 11 Schemes and groups of windings connection of TMPNG-SESH 11 Modes of operation in case of overload 12 Wiring diagrams for transformer connection 12 Standard design of transformers 13 Basic technical data of series 11 TMPNG-SESH 13 Basic technical data of series 12 TMPNG-SESH 15 Overall, installation and connection dimensions of transformers TMPNG series Overall, installation and connection dimensions of transformers TMPNG series Services 32

4 TRANSFORMERS SERIES TMPNG-SESH FOR POWER SUPPPLY OF SUBMERSIBLE OIL PUMPS (TMPNG in accordance IEC 60076) Transformer is sealed, TMPNG-SESH type. Purpose Application: TMPNG-SESH - transformer for the conversion of electro-energies and power supply of submersible pumps sealed, without surge tank. As of electrical installation of power supply for submersible oil pumps. Transformer substation Wellhead fittings Control station Transformer Terminal box Compressor pump pipes 4 TMPNG-SESH

5 Operating conditions: Can be used for indoor and outdoor installation; Work in moderate conditions U (from +40 C to -45 C), Cold "UHL" (from +40 C to -60 C) or tropical "T" (from +50 C to -10 C); Relative air humidity in accordance with GOST : - not more than 80% at +15 C and 100% at +25 C for transformers performance U ; - not more than 80% at +15 C and 100% at +25 C for transformers performance UHL ; - not more than 98% at + 27 C and 100% at +35 C for transformers performance T ; Height above sea level is not more than 1000 m, operation mode - long; The environment is non-explosive, does not contain currentcarrying dust; Transformers are not designed to work in the conditions of shaking, vibration, shock, in an explosive and aggressive environment. Brief description of transformers: Transformer is three-phase two-winding, power from 63 to 1200 kva. Voltage class 3 and 6 kv. Primary unregulated low voltage windings are supplied from a threephase source with a voltage of 0.38 or 0.4 kv. The operating frequency range is 35 to 70 Hz. Secondary high voltage windings with voltage regulation in steps of 1 to 6 kv supply electric motors of submersible pumps installed in oil wells. Voltage regulation is carried out by switching the taps of the windings with two switches PBV (switching without excitation), with the transformer switched off. In transformers for submersible electric pumps, HV windings have a significant number of control stages N, which can reach N = 25, N = 36 and N = 49. The design of the transformers is sealed, without surge tank. At the same time, the increase in the volume of the oil when heated is sensed by the elastic corrugated walls of the housing. Inputs HV and LV are located on the smooth side wall of the tank. The HV and LV inputs are closed with a protective casing with cable entry apertures, which must be protected from dust and dirt. The degree of protection of the housing is IP13. At the request of the customer, the degree of protection of the enclosures can be: IP33, IP43, IP54. TMPNG-SESH 5

6 Part number structure for TMPNG-SESH Part number Explanation of number Т М PN G - (H) - SESH - XX/ X- X ХХХ Х, Х/ Х, Х/Х, Х/ X- X Three phase Т М PN G - (H) - SESH - XX/ X- X ХХХ Х, Х/ Х, Х/Х, Х/ X- X Natual circulation oil Т М PN G - (H) - SESH - XX/ X- X ХХХ Х, Х/ Х, Х/Х, Х/ X- X Power supply for submersible pumps Т М PN G - (H) - SESH - XX/ X- X ХХХ Х, Х/ Х, Х/Х, Х/ X- X Sealed version Т М PN G - (H) - SESH - XX/ X- X ХХХ Х, Х/ Х, Х/Х, Х/ X- X Separating sign Т М PN G - (H) - SESH - XX/ X- X ХХХ Х, Х/ Х, Х/Х, Х/ X- X Working with a frequency inverter control station Т М PN G - (H) - SESH - XX/ X- X ХХХ Х, Х/ Х, Х/Х, Х/ X- X Separating sign Т М PN G - (H) - SESH - XX/ X- X ХХХ Х, Х/ Х, Х/Х, Х/ X- X Manufacturer - Electroshield Samara Т М PN G - (H) - SESH - XX/ X- X ХХХ Х, Х/ Х, Х/Х, Х/ X- X Separating sign Т М PN G - (H) - SESH - ХХ/ X- X ХХХ Х, Х/ Х, Х/Х, Х/ X- X Rated Power, kva Т М PN G - (H) - SESH - XX/ Х- X ХХХ Х, Х/ Х, Х/Х, Х/ X- X Voltage class, kv Т М PN G - (H) - SESH - XX/ X- Х ХХХ Х, Х/ Х, Х/Х, Х/ X- X Transformer series Т М PN G - (H) - SESH - XX/ X- X ХХХ Х, Х/ Х, Х/Х, Х/ X- X Т М PN G - (H) - SESH - XX/ X- X ХХХ Х, Х/ Х, Х/Х, Х/ X- X Climatic performance according to GOST Нousing category according to GOST Т М PN G - (H) - SESH - XX/ X- X ХХХ Х, Х/ Х, Х/Х, Х/ X- X Rated voltage on high voltage side, kv Т М PN G - (H) - SESH - XX/ X- X ХХХ Х, Х/ Х, Х/Х, Х/ X- X Rated voltage on low voltage side, kv Т М PN G - (H) - SESH - XX/ X- X ХХХ Х, Х/ Х, Х/Х, Х/ X- X Voltage regulation limits on high voltage side, kv Т М PN G - (H) - SESH - XX/ X- X ХХХ Х, Х/ Х, Х/Х, Х/ X- X Schemes of HV windings connection Т М PN G - (H) - SESH - XX/ X- X ХХХ Х, Х/ Х, Х/Х, Х/ Х- X Schemes of LV windings connection Т М PN G - (H) - SESH - XX/ X- X ХХХ Х, Х/ Х, Х/Х, Х/ X- Х Group of winding connection Example of number: Transformer of sealed performance, with a capacity of 630 kva, voltage class 3 kv; series 11; climatic performance - UHL, housing category 1; with rated voltage on high voltage side 2.69 kv, on low voltage side 0.40 kv, voltage regulation limits for high voltage from 3.81 kv to 1.12 kv; circuit and winding connection group YН/YН-0: "Transformer TMPNG-SESH-630/3-11-UHL1; 2.69/0.4; 3.81/1.12; Yн/ Yн-0 ТУ ". 6 TMPNG-SESH

7 DESIGN OF THE TRANSFORMER The design of the transformer includes the following main s: body, active (magnetic core, windings, switches, taps, insulation), control of measuring devices, signaling devices, insulator bushing. In the active of the transformer there is a transformation of the electrical energy of one voltage into the electrical energy of another voltage. The energy from the low-voltage winding is converted into the energy of the high-voltage winding by the magnetic flux induced in the magnetic system. Main elements of the active Winding and magnetic core. consists of: - magnetic core; - low voltage windings; - high voltage windings; - assemblies of the active in the transformer housing; - insulation s; - switching devices. Magnetic core. The magnetic system consists of vertical rods, overlapped at top and bottom by horizontal yokes, as a result of which a closed magnetic circuit. To ensure minimum loss of idling, magnetic cores are manufactured on automatic lines, having plate spreaders. In this case, vertical rods and yokes of the core in automatic mode. Blending technology for magnetic core - Stеp-Lap. Magnetic core - assembly using the Step-Lap method Magnetic cores production line TMPNG-SESH 7

8 Windings Layered transformer windings, are arranged in the following order from the rod: low voltage winding, high voltage winding. The windings of LV are made of aluminum or copper tape and interlayer insulation of paper, HV windings are made of aluminum or copper wire of rectangular cross-section with paper insulation. Winding is made under strict adherence to technological process and minimizing the gaps between the conductor. The number of taps of the HV winding depends on the number of stages of the transformer control. Number of control stages - up to 49. Windings Assembly site of transformer windings Taps Taps are intermediate current-carrying elements, connecting the windings to the inputs and switching devices in accordance with the required electrical circuit. The LV connection is made of aluminum or copper bars with rectangular cross-section. The HH connection is carried out in the standard version by copper flexible wires. Tap changer (Switch) Voltage regulation is carried out without excitation, with the transformer switched off, By connecting the corresponding branches of the HV winding. 8 TMPNG-SESH

9 Tank Tank consists of: body, cover and protective housing. The transformer housing for submersible pumps consists of: Upper frame, corrugated walls, smooth sidewall and bottom. In the front of smooth wall there are holes for insulators, and a protective cover is attached to it. Inputs of HV and LV are located on the smooth side wall of the tank. On the cover of the tank of the transformer TMPNG-SESH installed: Two drive switches, float type oil indicator, thermometer, pressure relief valve. The cover is equipped with a protective switch cover, with eyelets for lock. Transformers are equipped with an overpressure relief valve, triggered by an increase in internal pressure above 30 kpa and providing an emergency gas outflow. fixing the cable on the casing there are metal clamps. Mechanical strength of the tank Sealed version transformers are designed for an overpressure of not more than kpa and a vacuum with a residual pressure of not more than kpa. Connection of the cover and the tank body in detachable Bolted, sealing of the connector - gaskets of oil and petrol resistant rubber. Metalware used has a strength class of 8.8. Coloration of the body, cover is made on the powder coating lines. Coatings are selected based on the climatic conditions of the transformer operation. Transformer tank Tank coloration Drying site for transformer tanks TMPNG-SESH 9

10 Transformer oil Obligatory conditions for the quality performance of sealed transformers in addition to the corrugated tank are extreme degassing before refilling and pouring transformer oil under extreme vacuum. Transformers are manufactured with complete oil filling, without expander and without air or gas cushion. contact with the environment is completely absent, that eliminating moisture, oxidation and sludge formation of transformer oil. Before pouring oil degassing takes place. is poured into the tank in a special vacuum chamber. This greatly increases the electrical insulation strength of the transformer. in transformers is sealed practically which does not change its properties during the entire service life. Transformer is filled with oil of grade ГК (ТУ ), ВГ (ТУ ). Plot of oil pouring in TMPNG Physico-chemical properties of transformer oil Main characteristic Unit (type ГК) (type ВГ) Breakdown voltage, not less than kv Tangent angle of dielectric losses at 90 С, not more than % Kinematic viscosity: At + 50 C, no more than / at -30 C, not more than mm 2 / С 9/1200 9/1200 The content of water-soluble acids and alkalis absent absent The content of mechanical impurities absent absent Flash point, not less than С Freezing point, not higher than С minus 45 minus 45 Color on the colorimeter, not more than unit ЦНТ 1,0 1,0 Density of oil at 20 С kg/m container 10 TMPNG-SESH

11 OPERATING PRINCIPLE OF THE TRANSFORMER The transformer for power supply of submersible electric pumps works as follows (see Figure 1). Transformer contains: The adjustable winding including the unregulated of the winding 1, group of rough regulated windings 2 and a group of fine regulated windings 3, winding switches 4 and 5. In windings of fine regulated 3, the number of turns is fewer, than the number of turns in rough regulated windings 2. Individual windings contain an equal number of turns in their winding groups. In addition, option is possible for construction design of transformer, At which the total number of turns in the fine regulated winding 3 is equal to the number of turns in one single coil of rough regulated 2. To change the transformation ratio Switches 4, 5 are installed in the respective taps on rough and fine regulated windings. The number of control stages N of the high voltage winding HV can be N = 25, N= 36 and N = 49. In transformers for submersible electric pumps control range of HV Secondary windings reaches the order of several tens of percent in one or the other side of the nominal value. Rated power of the transformer corresponds to its line voltage and current at the nominal stages of regulation of HV winding: Sном = 3 Uном Iном, where Iном rated linear current in the HV winding. When the transformer is operating at the control stages below the rated voltage stage n nnom the current developed at the control tap is equal to the rated current with a corresponding decrease in the line voltage. The developed power in this case is less than the rated: Sn = 3 Un Iном при n nnom. When the transformer is operating at control stages above the rated voltage stage n nnom the developed power at the taps of regulation does not change, and the current developed on the taps of regulation in this case: In = Sном /( 3 Un) при n nnom. A 1 (x1) 5 (a1) (x2) x (a2) Figure 1 Schemes and groups of windings connection of TMPNG In three-phase transformers, windings of different phases are connected to each other in a "star" (designation Y) or "triangle"(designation D), with the "star" scheme, as a rule, gas a deduced neutral (designation Yн). The basic schemes and groups of winding connections are shown in Fig. 2. Schemes of windings connection Yí/D-11 0 A B C 1 â. 1 â. 1 â. Schemes of windings connection Yí Yí-0 0 A B C 1 â. 1 â. 1 â. Schemes of windings connection D/Y-11 A B C 1 â. 1 â. 1 â. 2 â. 2 â. 2 â. 3 â. 4 â. 5 â. 6 â. 3 â. 4 â. 5 â. 6 â. 3 â. 4 â. 5 â. 6 â. 7 â. 7 â. 7 â. a X HV side b Y c 0 2 â. 2 â. 3 â. 3 â. 4 â. 4 â. 5 â. 5 â. 6 â. 6 â. X a Y HV side b Z ñ 2 â. 3 â. 4 â. 5 â. 6 â. 2 â. 3 â. 4 â. 5 â. 6 â. 7 â. a HV side b 2 â. 3 â. 4 â. 5 â. 6 â. 7 â. ñ 2 â. 3 â. 4 â. 5 â. 6 â. 7 â. x y z LV side x y z LV side Figure 2 x y z LV side TMPNG-SESH 11

12 Modes of operation in case of overload Transformers withstand emergency overloads in accordance with GOST and overvoltage, applied to any branch of the HV winding, above the rated voltage of this branch: - continuously, no more than 5% - at a power not higher than the nominal; - occasionally (but no more than 6 hours a day), not more than 10% at a power not higher than the nominal; - Transformers must allow emergency overloads to be 30% higher than the nominal current lasting not more than 3 hours per day, if the previous load was not more than 80% of the rated current of the transformer. Wiring diagram for transformer connection Metal clamps are fixed under the protective cover for wires. The ends of the outgoing wires are fed through the holes in the clamps below the casing to the terminals of the insulators. Fasten the wires by tightening the clamps. The ends of the outgoing wires are fixed to the terminals of the insulators, see Fig. 3. à â ñ 0 À Â Ñ 0 Figure TMPNG-SESH

13 STANDARD DESIGN OF TRANSFORMERS Transformer for submersible electric pumps TMPNG-SESH (Series 11 - standard, series 12 - with reduced losses of idling and short circuit) Basic technical data of series 11 transformers for submersible electric pumps TMPNG Specifications Voltage of windings HV, V max/min Nominal Voltage of windings LV, V No-load loss, W Short circuit loss, W Short circuit voltage,% (not more) No-load current, % (not more) TMPNG-SESH-63/3-11; 0.92/0.38; 1.14/0.44; Yн/Yн / TMPNG-SESH-63/3-11; 1.14/0.38;2.20/0.70; Yн/Yн / TMPNG-SESH-100/3-11; 1.30/0.40; 2.40/0.63; Yн/Yн / TMPNG-SESH-100/3-11; 1.25/0.38; 2.10/0.70; Yн/Yн / TMPNG-SESH-125/3-11; 1.30/0.40; 2.40/0.63; Yн/Yн / TMPNG-SESH-125/3-11; 1.54/0.38; 2.50/0.40; Yн/Yн / TMPNG-SESH-160/3-11; 1.36/0.40; 2.40/0.61; Yн/Yн / TMPNG-SESH 13

14 Basic technical data of series 11 transformers for submersible electric pumps TMPNG (continued) Specifications Voltage of windings HV, V max/min Nominal Voltage of windings LV, V No-load loss, W Short circuit loss, W Short circuit voltage,% (not more) No-load current, % (not more) TMPNG-SESH-160/3-11; 1.90/0.38; 2.50/1.35; Yн/Yн / TMPNG-SESH-200/6-11; 3.00/0.40; 5.00/1.00; Yн /Yн / ,0 2,0 TMPNG-SESH-250/3-11; 2.00/0.40; 3.10/1.23; Yн/Yн / TMPNG-SESH-250/3-11; 2.30/0.38; 3.00/1.80; Yн/Yн / TMPNG-SESH-300/3-11; 2.15/0.40; 2.98/1.12; Yн/Yн / TMPNG-SESH-300/6-11; 3.82/0.38; 3.82/1.91; Yн/Yн / TMPNG-SESH-400/3-11; 2.47/0.40; 3.10/1.41; Yн/Yн / TMPNG-SESH-400/6-11; 3.00/0,38; 4,51/1,99; Yн/Yн / TMPNG-SESH-426/6-11; 2.99/0.38; 4.51/1.99; Yн/D / TMPNG-SESH-426/6-11; 2.99/0.38; 4.51/1.99; Yн/Yн / TMPNG-SESH-500/6-11; 4.80/0.40; 4.80/1.10; D/Y / TMPNG-SESH-520/6-11; 2.68/0,48; 3,82/1,10; Yн/D / TMPNG-SESH-530/6-11; 5.00/0.38; 5.00/2.50; Yн/Yн / TMPNG-SESH-630/3-11; 2.69/0.40; 3.81/1.12; Yн/Yн / TMPNG-SESH-630/6-11; 2.69/0.38; 3.81/1.12; Yн/Yн / TMPNG-SESH-700/6-11; 5.50/0.38; 5.50/1.60; Yн/Yн / TMPNG-SESH-800/3-11; 2.81/0.38; 3.81/1.10; Yн/Yн / TMPNG-SESH-900/6-11; 5.50/0.38; 5.50/1.60; Yн/Yн / TMPNG-SESH-1000/6-11; 2.36/0.40; 4.29/1.49; Yн/Yн / TMPNG-SESH-1000/6-11; 3.01/0.40; 5.51/1.60; Yн/Yн / TMPNG-SESH 1023/6-11; 4.00/0.48; 4.80/1.60; Yн/D / TMPNG-SESH 1023/6-11; 4.00/0.48; 4.80/1.60; Yн/Yн / TMPNG-SESH-1200/6-11; 3.01/0.38; 5.61/1.98; Yн/Yн / Due to a wide range TMPNG and individuality of each order of transformers, the table contains data for some of the transformers produced. If you did not find the transformer you need, you can always make a request for the required transformer TMPNG-SESH

15 Basic technical data of series 12 transformers for submersible electric pumps TMPNG Specifications Voltage of windings HV, V max/min Nominal Voltage of windings LV, V No-load loss, W Short circuit loss, W Short circuit voltage,% (not more) No-load current, % (not more) TMPNG-(H)-SESH-100/6-12; 1.57/0.38; 3.40/0.64; Yн/Yн / TMPNG-(H)-SESH-125/6-12; 1.94/0.38; 3.60/1.10; Yн/Yн / TMPNG-(H)-SESH-160/6-12; 2.15/0.38; 3.60/1.43; Yн/Yн / TMPNG-(H)-SESH-200/6-12; 2.16/0.38; 3.60/1.43; Yн/Yн / TMPNG-(H)-SESH-250/6-12; 2.70/0.38; 4.60/1.66; Yн/Yн / TMPNG-(H)-SESH-315/6-12; 2.70/0.38; 4.65/1.71; Yн/Yн / TMPNG-(H)-SESH-400/6-12; 2.70/0.38; 4.80/1.65; Yн/Yн / TMPNG-(H)-SESH-500/6-12; 2.90/0.38; 4.50/2.10; Yн/Yн / TMPNG-(H)-SESH-630/6-12; 2.82/0.38; 4.50/1.91; Yн/Yн / TMPNG-(H)-SESH-800/6-12; 3.00/0.38; 4.80/2.00; Yн/Yн / TMPNG-(H)-SESH-1000/6-12; 3.86/0.38; 5.80/2.82; Yн/Yн / Due to a wide range TMPNG and individuality of each order of transformers, the table contains data for some of the transformers produced. If you did not find the transformer you need, you can always make a request for the required transformer. TMPNG-SESH 15

16 OVERALL, INSTALLATION AND CONNECTION DIMENSIONS OF TRANSFORMERS TMPNG SERIES 11 TMPNG-SESH TMPNG-SESH

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26 OVERALL, INSTALLATION AND CONNECTION DIMENSIONS OF TRANSFORMERS TMPNG SERIES 12 "0" TMPNG-(H)-SESH-100/ TMPNG-SESH

27 "0" TMPNG-(H)-SESH-125/ "0" TMPNG-(H)-SESH-160/ TMPNG-SESH 27

28 "0" TMPNG-(H)-SESH-200/ "0" TMPNG-(H)-SESH-250/ TMPNG-SESH

29 "0" TMPNG-(H)-SESH-315/ "0" TMPNG-(H)-SESH-400/ TMPNG-SESH 29

30 "0" TMPNG-(H)-SESH-500/ "0" TMPNG-(H)-SESH-630/ TMPNG-SESH

31 "0" TMPNG-(H)-SESH-800/ "0" TMPNG-(H)-SESH-1000/ TMPNG-SESH 31

32 SERVICES The company provides a range of services for warranty and post-warranty maintenance of equipment manufactured by Electroshield Samara. Equipment in operation requires timely and quality service. To solve these tasks, the Service Dement was created on Electroshield Samara with the main task - To carry out warranty and after-sales service - anywhere, anytime. Electroshield Samara has all the necessary competencies and resources to carry out these tasks during the entire life of the equipment. More than 100 service engineers, located in more than 24 regional offices, travel to the site to provide service support. Specialists have vast experience, all the necessary permits and equipment for high-quality and rapid electrical work. Advantages of choosing Electroshield Samara: Solutions from a single source; Confidence in the operation of equipment; Highly qualified specialists from the manufacturer's factory; Effective operation and reduction of the cost of ownership; Quick response; Support for the lifetime of devices TMPNG-SESH

33 The task of our service team is to provide comprehensive service support and safe and efficient management of your electrical equipment. The Dement of Service Electroshield Samara provides: Installation supervision and commissioning work. Specialists of Electroshield Samara will make every effort to implement the project as efficiently as possible and deliver it on time; Inspection and modernization of equipment. At the stage of reconstruction of switchgears specialists of Electroshield Samara are ready to conduct survey, develop recommendations and implement project for the modernization (replacement) of obsolete equipment based on the solutions of NKU-SESH; Recovery to operating condition. Specialists of the Electroshield Samara provide the necessary measures to restore the equipment to the specified performance; Internship. Highly qualified personnel is one of the main factors of reliable equipment operation. A set of training programs and their practical orientation will help the personnel to operate correctly and safely; Supply of spare s. the repair and quick recovery of the equipment, spare s are important. Specialists of the Electroshield Samara developed extended sets of spare s. They can be purchased together with equipment or separately; Repair of equipment. To inspect the equipment and carry out repairs to the object by the service engineer. Answers to your questions can be found on our website: TMPNG-SESH 33

34 Примечания 34 TMPNG-SESH

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36 443048, Samara, pos. Krasnaya Glinka, building the plant of " Electroshield " Phone: +7 (846) Fax: +7 (846)