Related Manuals for Ormazabal transforma.hvd
Summary of Contents for Ormazabal transforma.hvd
- Page 1 Special distribution transformers, series 52 and 72.5 kV General instructions IG-315-EN, version 01, 27/04/2021...
- Page 2 Therefore, the use of this equipment poses electrical, mechanical and thermal risks. In order to ensure an acceptable level of protection for people and property, and in compliance with applicable environmental recommendations, Ormazabal designs and manufactures its products according to the principle of integrated safety, based on the following criteria: •...
-
Page 3: Table Of Contents
General instructions Contents transforma.hvd: Special distribution transformers, series 52 and 72.5 kV Contents 1. Description and main characteristics .......4 1.1. Design, manufacturing and testing ... 4 1.1.1. Routine or normal tests ..... . 5 1.1.2. -
Page 4: Description And Main Characteristics
Description and main characteristics General instructions transforma.hvd: Special distribution transformers, series 52 and 72.5 kV Description and main characteristics 1.1. Design, manufacturing and testing Ormazabal special distribution transformers have of the Medium Voltage (MV) electro-technical regulations in been designed and constructed in accordance with the force at the time of their manufacture, as well as particular mandatory standards. -
Page 5: Routine Or Normal Tests
Losses and no-load current measurement: • Applied voltage test. IEC 60076-1 IEC 60076-3 • Zero-sequence impedance measurement: IEC 60076-1 For other standards, please ask Ormazabal. • Power frequency voltage test: IEC 60076-3 • Induced voltage test: IEC 60076-3 1.1.2. Test protocol All the information regarding the special distribution transformer tests is recorded in the "Test Protocol"... -
Page 6: Transport And Handling
Transport and handling General instructions transforma.hvd: Special distribution transformers, series 52 and 72.5 kV Transport and handling Use the four bracing eyes located on the special distribution Risk of machinery breakage. transformer corners for its transportation and to prevent • The hoisting elements must be selected based on damage to the cooling elements. -
Page 7: Transport Using A Crane
General instructions Transport and handling transforma.hvd: Special distribution transformers, series 52 and 72.5 kV 2.2. Transport using a crane For transport using a crane, the gas tank must be robust enough for lifting the special distribution transformer by means of the lifting eye bolts. The following indications... -
Page 8: Road And/Or Sea Transport
The protection tools and equipment provided or recommended by Ormazabal (according to the agreement with the purchaser), such as anti-vibration mounts, must be used for transport. The special distribution transformer has specially designed lashing/fastening elements to secure it during transport/ handling operations. - Page 9 General instructions Transport and handling transforma.hvd: Special distribution transformers, series 52 and 72.5 kV • Lower fastening elements: there are 4 of them and they are located on the base of the special distribution transformer (Figure 2.5). Figure 2.5. Lower fastening for transport.
-
Page 10: Transport Agents
3.1 below, which are set out in Standard IEEE C57.93-2007, are unacceptable: 2.9. Liability Ormazabal reserves the right to not be liable for any damage caused when transporting and handling its product if the conditions described in this document are not met. -
Page 11: Storage
General instructions Storage transforma.hvd: Special distribution transformers, series 52 and 72.5 kV Storage If commissioning is not immediate, special distribution transformers must be stored following the recommendations below: • Store the special distribution transformer in a place that is dry and clean. -
Page 12: Installation
Special distribution transformers, series 52 and 72.5 kV Installation 4.1. Receipt of the special distribution transformer transforma.hvd is supplied prepared for its connection to • The special distribution transformer seals must be medium voltage (MV) and low voltage (LV) lines. -
Page 13: Location Of The Special Distribution
Risk of causing irreversible damage to the machine or to the electrical installation. 1. Check that the electrical power supply to the special • Contact Ormazabal in the event of dielectric liquid distribution transformer matches the service values leaks. shown on the special distribution transformer’s nameplate. - Page 14 Figure 4.2. Detail of transforma.hvd earth connection Risk of causing irreversible damage to the machine. • The tightening torques must guarantee the proper electrical contact of the connections.
-
Page 15: Start Up
• Check that the electrical voltage applied matches the special distribution transformer's rated voltage. Contact Ormazabal in the case of any anomaly. • If an adjustment is required after commissioning the special distribution transformer, follow the safety instructions speci ed in section 6.1 of these... -
Page 16: Maintenance
(LV) circuit, if applicable, until the special distribution or to the electrical installation. transformer is turned o . Interlock or block the • Contact Ormazabal in the event of dielectric liquid necessary switching devices to prevent the power leaks. supply. -
Page 17: Regularity Of Maintenance
General instructions Maintenance transforma.hvd: Special distribution transformers, series 52 and 72.5 kV 6.2. Regularity of maintenance Visually inspecting the following aspects of the special thermometer, oil level and/or internal pressure. Check distribution transformer is recommended: that the readings are within suitable values and that... -
Page 18: Repairs
If a company other than Ormazabal performs the repair If the special distribution transformer presents any anomaly in its operation, the user must notify Ormazabal, who will or modi cation, it must place a plate on the machine provide appropriate instructions. -
Page 19: Additional Information
General instructions Additional information transforma.hvd: Special distribution transformers, series 52 and 72.5 kV Additional information 7.1. Reliability As shown by the tests, the special distribution transformer The maintenance instructions set out in this document leaves the factory free of defects and is ready to provide must be observed. -
Page 20: Final Annex
Final annex General instructions transforma.hvd: Special distribution transformers, series 52 and 72.5 kV Final annex Torque recommended for Medium Voltage (MV) and Low Voltage (LV) connections. Metric Size Wrench Size Low voltage (LV) Connection between nuts 15-20 70-100 250-350 Fastening the palms to the pin (stainless steel bolts) - Page 21 General instructions Notes transforma.hvd: Special distribution transformers, series 52 and 72.5 kV Notes IG-315-EN version 01; 27/04/2021...
- Page 22 Notes General instructions transforma.hvd: Special distribution transformers, series 52 and 72.5 kV Notes IG-315-EN version 01; 27/04/2021...
- Page 24 Ormazabal Subject to change Cotradis without prior notice. Transformadores For further information, LOECHES contact Ormazabal. Spain www.ormazabal.com...
Need help?
Do you have a question about the transforma.hvd and is the answer not in the manual?
Questions and answers