HD Electronic Quick-Check, TILT II Instruction Manual

Instruction Manual
HD ELECTRIC COMPANY
1475 LAKESIDE DRIVE • WAUKEGAN, ILLINOIS 60085 U.S.A.
PHONE 847.473.4980 • FAX 847.473.4981 • website: www.HDElectricCompany.com
TRANSFORMER AND CAPACITOR TESTERS
TILTII and
®
®
SAFETY
WARNING: The TILT II and Quick-Check should be used only on
equipment known to be deenergized and/or discharged.
CAUTION: Using the TILT II and Quick-Check on the secondary side
of transformers may generate high voltages on the primary side. Stay clear of all primary connections while testing.
The Quick-Check will not leave a significant charge on a capacitor.
HD Electric Company is committed to ongoing review and improvement of its product lines, and thus reserves the right to modify product design and specifications without notice.
HD Electric Company products are available through HD sales representatives worldwide.
Printed in U.S.A. © HD Electric Company 2006 • Bulletin No. TILT/QC-INST 2000b
Quick-Check Patent No. 6130530
1
TILT II
and
Quick-Check
T
RANSFORMER ANDCAPACITORTESTERS
INTRODUCTION
The TILT II and Quick-Check are versatile tools for quick and easy checks of transformers and the connections made to them. The Quick-Check also tests power capacitors and capacitor banks. The transformer connections can include bundled secondaries or a cable run from the transformer to the meter.
In the field, the testers are used to test the primary and secondary sides of new or reworked, single or three phase transformer installations. The Quick-Check also tests capacitor banks for short or open circuits prior to energizing.
In the shop the testers are used for quick screening of incoming and outgoing transformers (including their internal fuses and breakers). The Quick-Check also tests capacitors for both shorts or opens. Both testers test 1Ø and 3Ø transformers including PT’s and other instrument transformers, and the Quick-Check tests power capacitors in almost any size.
HOW IT WORKS
The TILT II and Quick-Check are used in the field for testing connected transformers, their connected primary and secondary leads and the Quick-Check for power capacitors, individually or in banks, for both shorts or opens. Unlike a simple ohmmeter, the TILT II and Quick-Check use a high frequency, low voltage signal to measure transformer winding inductance (and power capacitor capacitance) and they can differentiate true shorts from other low resistance windings or connected equipment such as meters.
Note: The TILT II and Quick-Check will not detect a partially shorted transformer
coil or an improper transformer ratio. They will not detect a capacitor with a partial short or open.
TESTING THE TILT II AND QUICK-CHECK
Before using the TILT II or Quick-Check to test a transformer or capacitor, test the instrument itself using the built in TEST terminals on the right side of the unit. With the test leads disconnected from any equipment and from each other, press the TEST button. The OPEN light should flash. If it does not, replace the battery. Next, short the test leads together and press the TEST button. The SHORT light should flash. Now touch the right test lead to the right side test terminal labeled TRANSFORMER and press the TEST button. The TRANSFORMER O.K. light should flash and the beeper should be heard.
For the Quick-Check, touch the right test lead to the right side test terminal labeled CAPACITOR and press the TEST button. The CAPACITOR O.K. light should flash and the beeper should be heard.
2
3
TILTII and
Quick-Check
TRANSFORMER AND CAPACITOR TESTERS
from primaries to secondaries OPEN
TRANSFORMER O.K.
if both primary and
secondary have one
grounded bushing
USING THE TILT II & QUICK-CHECK
For single phase transformers, use these figures as guidelines to get started. For 3Ø transformers, the TILT II and Quick-Check test leads are connected from each phase to neutral and across each pair of phases. When all connections are proper and the transformer itself is good, the TILT II and Quick-Check will beep and show TRANSFORMER O.K. The OPEN indication designates a bad connection or an open transformer winding. A SHORT indication designates a short from phase to neutral or phase to phase in the transformer or the connections to it.
Note: Disconnect primaries or remove primary
fuses before testing secondaries.
For the Quick-Check and power capacitors, tests across the two bushings should show CAPACITOR O.K. On a single bushing capacitor tests from bushing to ground will also show CAPACITOR O.K. On a two bushing capacitor, tests from bushing to ground should show OPEN.
As a quick test in the shop, the TILT II and Quick-Check can be used to screen transformers by checking both primary and secondary windings and connections. Test for SHORTs on both primary and secondary windings and from primary to secondary. Test for OPENs on both primary and secondary windings to check for open windings or open breakers and fuses. Tests for power capacitors with the Quick-Check are performed across each bushing and from bushing(s) to ground.
TEST CONNECTIONS FOR
TILT II and Quick-Check
across the primary
TRANSFORMER O.K.
primary to ground
OPEN
secondaries to ground
TRANSFORMER O.K.
center tap SHORT
if grounded
across the primary
TRANSFORMER O.K.
across the secondaries
TRANSFORMER O.K.
These instruments are intended for quick and simple testing of transformers or capacitors and the connections made to them. Do not energize visibly damaged equipment such as a transformer leaking oil or a bulged capacitor even if the TILT II or Quick-Check gives an O.K. reading.
The TILT II and Quick-Check are powered by an internal 9V alkaline battery. It is easily and quickly replaced by removing the battery cover on the back of the unit.
WARNING: The TILT II and Quick-Check
should be used only on equipment known to be deenergized and/or discharged.
CAUTION: Using the TILT II and Quick-Check on
the secondary side of transformers may generate high voltages on the primary side. Stay clear of all primary connections while testing.
The Quick-Check will not leave a significant charge on a capacitor.
Note:
For user safety there is a non-replaceable 600V internal fuse inside the instrument. If the instrument is connected to an energized transformer, the fuse will blow. The instrument must then be returned to the factory for repair.
SPECIFICATIONS
SHORT: ≤ 10Ω, varies with battery voltage OPEN: ≥ 10Ω, varies with battery voltage
TRANSFORMER O.K.: minimum inductance 800µH
CAPACITOR O.K.: (Quick-Check only)
minimum capacitance 0.5µf maximum capacitance 300µf
TESTING 3Ø TRANSFORMERS
The TILT II and Quick-Check should be used only on equipment known to be deenergized. Using the TILT II or Quick-Check on the secondary side of transformers may generate high voltages on the primary side. Stay clear of all primary connections while testing.
4
across two bushings
CAPACITOR O.K.
one bushing to ground
OPEN
one bushing
CAPACITOR O.K.
TEST CONNECTIONS FOR
Quick-Check Only
5
For 3Ø transformers, the TILT II or Quick-Check test leads are connected from each phase to neutral and across each pair of phases. When all connections are proper and the transformer itself is good, the TILT II or Quick-Check will beep and show O.K. The OPEN indication designates a bad connection or an open transformer winding. A SHORT indication designates a short from phase to neutral or phase to phase in the transformer or the connections to it.
For Y (wye) connections, test the primary and secondary sides of the transformer as follows:
X1 - X2 Transformer O.K. X2 - X3 Transformer O.K. X1 - X3 Transformer O.K. X1 - X0 Transformer O.K. X2 - X0 Transformer O.K. X3 - X0 Transformer O.K. H1 - H2 Transformer O.K. H2 - H3 Transformer O.K. H1 - H3 Transformer O.K. H1 - H0 Transformer O.K. H2 - H0 Transformer O.K. H3 - H0 Transformer O.K. H1 - X1 Transformer O.K. if both H0 H2 - X2 and X0 are grounded, H3 - X3 otherwise OPEN H0 - X0 SHORT, if both sides
are grounded, otherwise OPEN
H0
H1
H2
H3
X0
X1
X2
X3
Primary Secondary
X1
X2
X3
X0
Y Connection
}
TILTII and
Quick-Check
TRANSFORMER AND CAPACITOR TESTERS
For (delta) connections, test the primary and secondary sides the
same as the Y (wye) except omit the connections to X0 and H0.
The TILT II and Quick-Check will not detect a partially shorted transformer coil or an improper transformer ratio. It is intended for quick and simple testing of transformers and the connections made to them.
TESTING DISTRIBUTION TRANSFORMERS FROM METER SOCKETS
An overhead or underground distribution transformer can sometimes be more conveniently tested from a meter socket served by that transformer.
The TILT II and Quick-Check should be used only on equipment known to be deenergized. Test both the load and source sides of the meter socket for the presence of voltage before using the TILT II or Quick-Check.
Using the TILT II or Quick-Check on the secondary side of transformers may generate high voltages on the primary side. Stay clear of all primary connections while testing. The Quick-Check will test the secondary side of a transformer connected to the meter socket. Connect the TILT II or Quick-Check across the two source side receptacles and from each receptacle to ground and test.
Note: This procedure will not work if other loads are
connected to the same transformer.
The wiring on the load side of the meter socket going into the main breaker can also be tested for shorts or crossed phases. Connect the TILT II or Quick-Check across the two load side receptacles and from each receptacle to ground. The absence of shorts or crossed phases will be indicated by an OPEN reading. If the main breaker is not open, connected loads within the building may cause a SHORT or TRANSFORMER O.K. indication.
The meter socket connections shown are typical. Local standards may specify different connections.
6
H3H1
H2
Delta Connection
L
OADSIDE
(
TYPICAL
)
S
OURCE
S
IDE
(
TYPICAL
)
LIMITATION OF WARRANTY AND LIABILITY
NOTICE: READ THIS LIMITATION OF WARRANTY AND LIABILITY BEFORE BUYING OR USING THIS PRODUCT. IF THE TERMS ARE NOT ACCEPTABLE, RETURN THE PRODUCT AT ONCE, AND THE PURCHASE PRICE WILL BE REFUNDED.
It is impossible to eliminate all risks associated with the use of this product. Risks of serious injury or death, including risks associated with electrocution, arcing and thermal burns, are inherent in work in and around energized electrical systems. Such risks arise from the wide variety of electrical systems and equipment to which this product may be applied, the manner of use or application, weather and environmental conditions or other unknown factors, all of which are beyond the control of HD Electric Company.
HD Electric Company does not agree to be an insurer of these risks. WHEN YOU BUY OR USE THIS PRODUCT, YOU AGREE TO ACCEPT THESE RISKS.
HD Electric Company warrants that this product is free of defects in material and workmanship, under normal use and service, for a period of one (1) year from the date of shipment. This warranty is void in the event of misuse, alteration, faulty installation or misapplication of the product.
HD ELECTRIC COMPANY MAKES NO OTHER EXPRESS OR IMPLIED WARRANTY OF FITNESS OR OF MERCHANTABILITY OR ANY OTHER EXPRESS OR IMPLIED WARRANTY.
IN NO EVENT SHALL HD ELECTRIC COMPANY BE LIABLE FOR ANY INCIDENTAL, CONSEQUENTIAL OR SPECIAL DAMAGES RESULTING FROM THE USE OR HANDLING OF THIS PRODUCT. BUYER’S OR USER’S BARGAINED-FOR EXPECTATION IS EQUIPMENT FREE OF DEFECTS IN MATERIAL AND WORKMANSHIP WHICH IS CAPABLE, WHEN PROPERLY APPLIED BY TRAINED PROFESSIONALS, OF PERFORMING IN ACCORDANCE WITH THE PRODUCT DESCRIPTION. THE EXCLUSIVE REMEDY OF THE USER OR BUYER AND THE EXCLUSIVE LIABILITY OF HD ELECTRIC COMPANY OR SELLER FOR ANY AND ALL CLAIMS, LOSSES, INJURIES OR DAMAGES (INCLUDING DAMAGES BASED ON BREACH OF WARRANTY OR CONTRACT, NEGLIGENCE, TORT OR STRICT LIABILITY), SHALL BE THE RETURN OF THE PURCHASE PRICE OF THE PRODUCT, OR AT THE ELECTION OF HD ELECTRIC COMPANY OR SELLER, THE REPLACEMENT OF THE PRODUCT.
HD Electric Company must have prompt notice of any claim for damage or injury so that an immediate product inspection and investigation of the incident can be made. Buyer and all users shall promptly notify HD Electric Company of any claims, whether based on contract, negligence, strict liability, or other tort or otherwise or be barred from any remedy.
TESTING DISTRIBUTION VOLTAGE REGULATORS
For typical distribution voltage regulators, test using these figures as guidelines. Both the line and load bushings tested to ground should indicate the reading shown in the figures. With the regulator in the neutral position, the line and load are internally connected with the resulting test indicating SHORT.
load to ground
TRANSFORMER OK
line to load
regulator at neutral
SHORT
line to ground
TRANSFORMER OK
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