变压器英文说明书
Senci power
Transformer
Operating instructions
Shanghai Sencipower Technology Co., Ltd.
1. Summary
JMB, BK, JBK, BKC series control transformers are type of earliest electric products developed by the Company, which adopt import material and strict design, and have characters of excellent performance, dependable work, and wide applicability. This series transformer adopts assembling method of vertical lathe, which can work
continuously under condition of rated capacity for longtime and be widely used as control power supply of general electric appliance in machine slice and mechanical equipment, as well as power supply of indicator light used for local illumination.
2. Specification and installation dimension:
Series Specs (VA)
Rated
input
voltage (V)
Rated
output
voltage (V)
External
dimensions
L*W*H
(mm)
Installation
dimensions
L*W
(mm)
JBK
40 80×77×90 55×50 63 80×85×90 55×50 100 6 86×95×92 64×70 160 (6.3) 98×105×110 83×87 250 220 12 98×110×113 82×87 400 (361) 24 120×115×120 102×90 630 36 150×1110×140 128×92 1000 380 110 180×220×155 155×160 1600 57×82×82 155×182
BKC
25 (399) 127 70×89×100 68 50 220 80×100×105 50×70 100 (380) 86×100×125 57×83 150 105×100×136 56×84 250 78×83
BK series JMB series
Specification
External
dimensions
Installation
dimensions
External dimensions
25VA 79×72×86 54×47
50 VA 87×68×96 70×57 150×160×130
100 VA 105×94×110 84×68
150 VA 105×100×110 84×74 160×170×135
200 VA 105×108×110 84×84
250 VA 120×116×134 95×80 130×210×155
300 VA 120×126×134 95×90
400 VA 134×137×150 110×100 210×230×175
500 VA 134×150×150 110×110
700 VA 155×155×164 125×114 218×290×185
1000 VA 155×170×164 125×128
1500 VA 175×185×195 143×130 260×330×235
2000 VA 175×200×195 143×140
3000 VA 205×220×230 170×160 280×350×230
4000 VA 230×210×340 190×155 360×355×280
5000 VA 310×27×28 200×140
3. Operating condition:
The transformer could operate unfailingly under following condition.
3.1. Sea level altitude is lower than 2500M
3.2. Air temperature: not higher than 40oC, and not lower than -25 oC
3.3. Relative humidity: monthly average humidity is 90%.
3.4. A medium of no explosion hazard in where no air might corrode metal and
destroy insulation, or no conductive dust existing.
3.5. A place of no weather effect.
4. Installation and use instruction
4.1. Unfold packing case, take out instruction, spare parts and the unit, and read
“Operating instruction” carefully to ensure correct operation.
4.2. Fasten the transformer firmly on suitable place of airiness and heat emission to
prevent it from vibration or corrosion.
4.3. Please test if circuitry voltage and mains voltage is rated input voltage before
use it. The allowable deviation is ±5%. Please add a regulated power supply
on front terminal to ensure reliable operation of transformer if the tested voltage
exceeds allowable range consumedly.
4.4. Select lead of proper cross section and connect it according to indication, make
contact after confirmed that load sharing is inerrant. For selection of cross
section of lead under different conditions, please refer to following sheet: Rated input/output current
Cross section of lead (copper) (mm2)
(A)
5 0.75
5-10 1.00
10-16 1.50
16-25 2.50
25-32 4.00
32-45 6.00
45-63 10.00
63-80 16.00
80-110 25.00
110-130 35.00
130-170 50.00
170-220 70.00
220-270 95.00
Calculating formula of rated current:
Current=Rated capability (VA)/rated output (input) voltage (V) *A
5. Precautions
5.1. Before purchase, please estimate total capacitance of applicable electric
appliance, and choose transformer that has equivalent capacitance to prevent
transformer from burning of instantaneous startup.
5.2. The transformer is designed and produced strictly according to relevant
national standard. When using duplex winding and multi-control voltage (tap
style), such as BK, JMB transformer please respectively reduce capability
according to max voltage radio of primary and secondary voltage, namely,
current may not exceed calculated value of max voltage; For transformer that
adopts winding to divide power capacity, it is necessary to control power
capacity of each winding strictly to prevent transformer from burning. For
configuration and character of winding, please refer to figure 1.
5.3. Before installation, please check if all data listed on nameplate meet your
requirement, and perform installation after confirmation.
5.4. After electrified, radiation (the temperature should not exceed 80℃ ) with iron
core and coil of transformer is normal. If the temperature exceed 80℃, or
condition of smoking occurs, please shut off power, check capacitance of
electric appliance, and adjust it.
6. After sale service
6.1. Guarantee period of control transformer and street lamp transformer produced
by the Company will be one year that enters into force from date of purchases.
In guarantee period, for problems caused in manufacturing quality, user could
achieve maintenance from maintenance service (agency) with credence of
sales invoice or warranty card, or contact the Company.
7. Packing list
7.1. The unit, 1
7.2. User’s manual, 1
7.3. Warranty card, 1
7.4. Acceptance certificate, 1
8. Note:
The company could design and manufacture products in commission of user
according to the special requirement.
Configuration and character of control transformer winding
Character of duplex winding tap style is shown as figure 1.
Primary and secondary winding of transformer respectively
change voltage value with lead tap of the same
specification, set high-pressure level as rated value, reduce
capability according to dropping radio of voltage. In case
that use two kinds of voltage at output terminal
synchronously, the current valued should not be exceeded
(Current is rated value.)
Character of multi windings of fractional power is shown as
figure 2. There is one winding at primary winding, and
various windings at negative pole that loads separately,
hereby, each winding should not exceed specified value.
Character of composite winding of fractional power is
shown as figure 3. It has these two characters
abovementioned, in case that change 380V of primary level
to 220V, transformer capacitance should be 0.578 time of
original value, current of output winding should not exceed
0.578 time of original value.
1. Scope
1.1. The Product Instruction summarizes basic configuration, basic parameter,
normal operating condition, and precautions of SG, SBK (ZSG) series
three-phase dry type (rectifier) transformer, and may be used as instruction
for type selection, safe operation of user.
2. Sources of standards
2.1. The first part of GB1094.1-1996 power transformer
2.2. JB/T9646-1999Small scale dry type control or lighting transformer
2.3. JB/T9639-1999Enclosed bus
3. General description of production
3.1. Transformer is kind of stationary electrical equipment that switches voltage
or current between two or more windings with congruence frequency via
electrodynamic induction.
3.2. For SG, SBK series three-phase dry type (rectifier) transformer, the unit
body consists of iron core and winding should not be dipped into medium of
insulating liquid (transformer oil), while directly contacts with air, and emit
heat via air convection.
3.3. ZSG series three-phase dry type rectifier transformer (dry type transformer)
is important component of transformer equipments; it combines with various
rectifier equipments to rectifier circuit system. For realization of switching
AC to DC, rectifier transformer switches voltage alternating current network
to equivalent voltage value, then output voltage to DC dragging equipment
via rectifying device (rectifier).
4. Configuration introduction
4.1. For configuration type, please refer to figure1 and figure2.
4.2. Adopt three pillar iron core that made of cold rolled silicon steel plate, flux
density ≥ 12000 gauss
4.3. According to capability, the winding will adopt SBECR double fiberglass
packed flat copper wire, QZ high strength enameled wire or copper bar.
4.4. Insulation level: level B
5. Basic parameter
5.1. Apply to circuit below 50HZ 1000V
5.2. Rated working system: short term working system and long term working
system.
5.3. Major capability, please refer to Sheet 1
SN Specification and
capability
SN Specification and capability
1 SG/1SBK-300VA 14 SG/1SBK-8000 VA
2 SG/1SBK-500 VA 15 SG/1SBK-10KVA
3 SG/1SBK-750 VA 16 SG/1SBK-15 KVA
4 SG/1SBK-1000 VA 17 SG/1SBK-20 KVA
5 SG/1SBK-1500 VA 18 SG/1SBK-25 KVA
6 SG/1SBK-2000 VA 19 SG/1SBK-30 KVA
7 SG/1SBK-2500 VA 20 SG/1SBK-40 KVA
8 SG/1SBK-3000 VA 21 SG/1SBK-50 KVA
9 SG/1SBK-3500 VA 22 SG/1SBK-60 KVA
10 SG/1SBK-4000 VA 23 SG/1SBK-100 KVA
11 SG/1SBK-5000 VA 24 SG/1SBK-150 KVA
12 SG/1SBK-6000 VA 25 SG/1SBK-200 KVA
13 SG/1SBK-7000 VA 26 SG/1SBK-300 KVA
5.4. Please select combination of rated power voltage and rated output voltage
according to Sheet 2 preferentially.Sheet 2
Rated power voltage Rated output voltage
660 380 220 127 380 220 127 110 36 24 12 6
6. Normal operating condition
The transformer could operate unfailingly in following conditions:
6.1. Sea level altitude is lower than 2500M
6.2. Medium temperature:
6.2.1. Not lower than -25 oC
6.2.2. Not higher than 40oC
6.3. Relative humidity: monthly average humidity is 90% while monthly average
temperature is +25 oC
6.4. 6.4 Waveform of current and voltage is border on sine wave
6.5. 6.5 A place of no weather effect
6.6. 6.6 A place of no obvious shake or impact vibration.
6.7. 6.7 A medium of no explosion hazard in where no air might corrode metal
and destroy insulation, or no conductive dust existing.
7. Precautions
7.1. Confirm reasonable capability of transformer
Firstly, it is necessary to check local power voltage, factual load of user
and local condition, then select transformer according to technology data
on nameplate of transformer. In general, it is necessary to select
transformer according to capability, voltage, current and environmental
condition of transformer synthetically. Therein, selection of capability
should be conducted according to capability, character and using term of
consumer.
In normal operation, it is necessary to keep electric load supported by
transformer in a level of 75-95% rated capability of transformer.
7.2. Do not operate in condition of overload for long term
Overload operation denotes that operating current of transformer exceeds
current valued regulated on nameplate, which should raise temperature of
transformer, expedite insulation aging, and reduce operating life, hereby,
do not operate transformer in condition of overload. Under special
condition, transformer could operate under condition of overload in short
time, for allowable time, please refer to sheet 3
Sheet 3
SN Times of rated load Allowable time of overload
1 1.30 1 hour
2 1.60 15 minutes
3 1.75 8 minutes
4 2.00 4 minutes
7.3. No wetting
For all electrical products, wetting will reduce insulation, increase leaking
current, and even neutralize the product. SG, SBK, ZSG three-phase
transformer is a kind of indoor transformer, which can not be assembled
out door or suffered from water logging, raining, and weather corrosion.
Please perform drying treatment with wetting transformer.
7.4. For ensuring normal operation of transformer, it is necessary to conduct
following test frequently.
7.4.1. Temperature test: temperature is important for normal operation of
transformer.
7.4.2. Load test: For improve availability of transformer, it is necessary to
reduce energy loss, avoid of overload operation as much as
possible, as well as test actual load capability during operation. The
test could be conducted directly with pliers meter. The current value
should be 75-90% rated current of transformer. If the value is
exceeded, it denotes that the transformer is operating with overload,
and adjustment is necessary.
7.4.3. Voltage test: variable quantity of voltage of transformer should be in
range of ±5% of rated voltage. It is necessary to adjust voltage by
using current tap to make voltage achieve regulated range. In
general, it is possible test secondary voltage by using voltmeter.
7.4.4. Test of insulation resistance: for ensuring normal operation of
transformer, it is necessary to test insulation resistance of
transformer to prevent insulation from wetting, or avoid accident. It
is required to perform test with insulation resistance via megohm
meter in condition of breaking, and tested resistance should not
lower than value tested before.
8. After sale service
Guarantee period of control transformer produced by the Company will be one year that enters into force from date of purchases. In guarantee period, for problems
caused in manufacturing quality, user could achieve maintenance from
maintenance service (agency) with credence of sales invoice or warranty card.
9. Order precautions
Please indicate following items while purchasing products:
9.1. Type, specification, capability, quantity of transformer;
9.2. Primary, secondary voltage of transformer;
9.3. Connecting level
9.4. Provide capability distribution while providing voltage of multiwinding
transformer;
9.5. Please indicate specially during ordering if special requirement with external
dimensions or installation dimension is required.
7×24h Service hotline:021-********
Shanghai Sencipower Technology Co.,Ltd.
Factory address：Zishun industrial park， No.58 XiangYun Road,Minhang
Shanghai
Postalcode：200245
Tel：021-******** 34721139 51693509 61994089
Fax：021-*********603
https://www.sodocs.net/doc/ef17240084.html,
E-mail: sencipower@https://www.sodocs.net/doc/ef17240084.html,
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